diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/core/AIService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/core/AIService.java
index 7f072b31ec..0c1c1bf9f2 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/core/AIService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/core/AIService.java
@@ -35,7 +35,7 @@ public interface AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chat(String prompt){
+	default String chat(final String prompt){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
@@ -48,7 +48,7 @@ public interface AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chat(String prompt, final Consumer<String> callback){
+	default void chat(final String prompt, final Consumer<String> callback){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceImpl.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceImpl.java
index 34bf6478b8..675b033b48 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceImpl.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceImpl.java
@@ -63,8 +63,8 @@ public class DeepSeekServiceImpl extends BaseAIService implements DeepSeekServic
 	}
 
 	@Override
-	public void chat(List<Message> messages, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
+	public void chat(final List<Message> messages, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "deepseek-chat-sse").start();
 	}
 
@@ -76,8 +76,8 @@ public class DeepSeekServiceImpl extends BaseAIService implements DeepSeekServic
 	}
 
 	@Override
-	public void beta(String prompt, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildBetaStreamRequestBody(prompt);
+	public void beta(final String prompt, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildBetaStreamRequestBody(prompt);
 		ThreadUtil.newThread(() -> sendPostStream(BETA_ENDPOINT, paramMap, callback), "deepseek-beta-sse").start();
 	}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/doubao/DoubaoService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/doubao/DoubaoService.java
index 019a627c60..3881e1ce32 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/doubao/DoubaoService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/doubao/DoubaoService.java
@@ -39,7 +39,7 @@ public interface DoubaoService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatVision(String prompt, final List<String> images) {
+	default String chatVision(final String prompt, final List<String> images) {
 		return chatVision(prompt, images, DoubaoCommon.DoubaoVision.AUTO.getDetail());
 	}
 
@@ -51,7 +51,7 @@ public interface DoubaoService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatVision(String prompt, final List<String> images, final Consumer<String> callback) {
+	default void chatVision(final String prompt, final List<String> images, final Consumer<String> callback) {
 		chatVision(prompt, images, DoubaoCommon.DoubaoVision.AUTO.getDetail(), callback);
 	}
 
@@ -98,7 +98,7 @@ public interface DoubaoService extends AIService {
 	 * @return 生成任务id
 	 * @since 6.0.0
 	 */
-	default String videoTasks(String text, String image) {
+	default String videoTasks(final String text, final String image) {
 		return videoTasks(text, image, null);
 	}
 
@@ -166,7 +166,7 @@ public interface DoubaoService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String batchChat(String prompt){
+	default String batchChat(final String prompt){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
@@ -218,7 +218,7 @@ public interface DoubaoService extends AIService {
 	 * @return AI的回答
 	 * @since 6.0.0
 	 */
-	default String chatContext(String prompt, String contextId){
+	default String chatContext(final String prompt, final String contextId){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("user", prompt));
 		return chatContext(messages, contextId);
@@ -233,7 +233,7 @@ public interface DoubaoService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatContext(String prompt, String contextId, final Consumer<String> callback){
+	default void chatContext(final String prompt, final String contextId, final Consumer<String> callback){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("user", prompt));
 		chatContext(messages, contextId, callback);
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokCommon.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokCommon.java
index 0a241c56b1..e2120ef274 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokCommon.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokCommon.java
@@ -44,7 +44,7 @@ public class GrokCommon {
 
 		private final String detail;
 
-		GrokVision(String detail) {
+		GrokVision(final String detail) {
 			this.detail = detail;
 		}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokConfig.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokConfig.java
index b43860f6d0..159ca1125a 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokConfig.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokConfig.java
@@ -49,7 +49,7 @@ public class GrokConfig extends BaseAIConfig {
 	 *
 	 * @param apiKey API密钥
 	 */
-	public GrokConfig(String apiKey) {
+	public GrokConfig(final String apiKey) {
 		this();
 		setApiKey(apiKey);
 	}
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokService.java
index bc6a84e317..4492fb568d 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokService.java
@@ -39,7 +39,7 @@ public interface GrokService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String message(String prompt, int maxToken){
+	default String message(final String prompt, final int maxToken){
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
@@ -55,7 +55,7 @@ public interface GrokService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void message(String prompt, int maxToken, final Consumer<String> callback){
+	default void message(final String prompt, final int maxToken, final Consumer<String> callback){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
@@ -112,7 +112,7 @@ public interface GrokService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatVision(String prompt, final List<String> images) {
+	default String chatVision(final String prompt, final List<String> images) {
 		return chatVision(prompt, images, GrokCommon.GrokVision.AUTO.getDetail());
 	}
 
@@ -124,7 +124,7 @@ public interface GrokService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatVision(String prompt, final List<String> images, final Consumer<String> callback){
+	default void chatVision(final String prompt, final List<String> images, final Consumer<String> callback){
 		chatVision(prompt, images, GrokCommon.GrokVision.AUTO.getDetail(), callback);
 	}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokServiceImpl.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokServiceImpl.java
index 24e1f2f431..4f83ee13a6 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokServiceImpl.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/grok/GrokServiceImpl.java
@@ -64,84 +64,84 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 
 	@Override
 	public String chat(final List<Message> messages) {
-		String paramJson = buildChatRequestBody(messages);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+		final String paramJson = buildChatRequestBody(messages);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chat(List<Message> messages, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
+	public void chat(final List<Message> messages, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "grok-chat-sse").start();
 	}
 
 	@Override
-	public String message(final List<Message> messages, int maxToken) {
-		String paramJson = buildMessageRequestBody(messages, maxToken);
-		Response response = sendPost(MESSAGES, paramJson);
+	public String message(final List<Message> messages, final int maxToken) {
+		final String paramJson = buildMessageRequestBody(messages, maxToken);
+		final Response response = sendPost(MESSAGES, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void message(List<Message> messages, int maxToken, final Consumer<String> callback) {
-		Map<String, Object> paramMap = buildMessageStreamRequestBody(messages, maxToken);
+	public void message(final List<Message> messages, final int maxToken, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildMessageStreamRequestBody(messages, maxToken);
 		ThreadUtil.newThread(() -> sendPostStream(MESSAGES, paramMap, callback), "grok-message-sse").start();
 	}
 
 	@Override
-	public String chatVision(String prompt, final List<String> images, String detail) {
-		String paramJson = buildChatVisionRequestBody(prompt, images, detail);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+	public String chatVision(final String prompt, final List<String> images, final String detail) {
+		final String paramJson = buildChatVisionRequestBody(prompt, images, detail);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chatVision(String prompt, List<String> images, String detail, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
+	public void chatVision(final String prompt, final List<String> images, final String detail, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "grok-chatVision-sse").start();
 	}
 
 	@Override
 	public String models() {
-		Response response = sendGet(MODELS_ENDPOINT);
+		final Response response = sendGet(MODELS_ENDPOINT);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String getModel(String modelId) {
-		Response response = sendGet(MODELS_ENDPOINT + "/" + modelId);
+	public String getModel(final String modelId) {
+		final Response response = sendGet(MODELS_ENDPOINT + "/" + modelId);
 		return response.bodyStr();
 	}
 
 	@Override
 	public String languageModels() {
-		Response response = sendGet(LANGUAGE_MODELS);
+		final Response response = sendGet(LANGUAGE_MODELS);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String getLanguageModel(String modelId) {
-		Response response = sendGet(LANGUAGE_MODELS + "/" + modelId);
+	public String getLanguageModel(final String modelId) {
+		final Response response = sendGet(LANGUAGE_MODELS + "/" + modelId);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String tokenizeText(String text) {
-		String paramJson = buildTokenizeRequestBody(text);
-		Response response = sendPost(TOKENIZE_TEXT, paramJson);
+	public String tokenizeText(final String text) {
+		final String paramJson = buildTokenizeRequestBody(text);
+		final Response response = sendPost(TOKENIZE_TEXT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String deferredCompletion(String requestId) {
-		Response response = sendGet(DEFERRED_COMPLETION + "/" + requestId);
+	public String deferredCompletion(final String requestId) {
+		final Response response = sendGet(DEFERRED_COMPLETION + "/" + requestId);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String imagesGenerations(String prompt) {
-		String paramJson = buildImagesGenerationsRequestBody(prompt);
-		Response response = sendPost(IMAGES_GENERATIONS, paramJson);
+	public String imagesGenerations(final String prompt) {
+		final String paramJson = buildImagesGenerationsRequestBody(prompt);
+		final Response response = sendPost(IMAGES_GENERATIONS, paramJson);
 		return response.bodyStr();
 	}
 
@@ -170,7 +170,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 	}
 
 	//构建chatVision请求体
-	private String buildChatVisionRequestBody(String prompt, final List<String> images, String detail) {
+	private String buildChatVisionRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -179,10 +179,10 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
-			HashMap<String, Object> imgUrlMap = new HashMap<>();
+		for (final String img : images) {
+			final HashMap<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
-			HashMap<String, String> urlMap = new HashMap<>();
+			final HashMap<String, String> urlMap = new HashMap<>();
 			urlMap.put("url", img);
 			urlMap.put("detail", detail);
 			imgUrlMap.put("image_url", urlMap);
@@ -200,7 +200,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 		return JSONUtil.toJsonStr(paramMap);
 	}
 
-	private Map<String, Object> buildChatVisionStreamRequestBody(String prompt, final List<String> images, String detail) {
+	private Map<String, Object> buildChatVisionStreamRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -209,10 +209,10 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
-			HashMap<String, Object> imgUrlMap = new HashMap<>();
+		for (final String img : images) {
+			final HashMap<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
-			HashMap<String, String> urlMap = new HashMap<>();
+			final HashMap<String, String> urlMap = new HashMap<>();
 			urlMap.put("url", img);
 			urlMap.put("detail", detail);
 			imgUrlMap.put("image_url", urlMap);
@@ -232,7 +232,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 	}
 
 	//构建消息回复请求体
-	private String buildMessageRequestBody(final List<Message> messages, int maxToken) {
+	private String buildMessageRequestBody(final List<Message> messages, final int maxToken) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("messages", messages);
@@ -243,7 +243,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 		return JSONUtil.toJsonStr(paramMap);
 	}
 
-	private Map<String, Object> buildMessageStreamRequestBody(final List<Message> messages, int maxToken) {
+	private Map<String, Object> buildMessageStreamRequestBody(final List<Message> messages, final int maxToken) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("stream", true);
 		paramMap.put("model", config.getModel());
@@ -256,7 +256,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 	}
 
 	//构建分词请求体
-	private String buildTokenizeRequestBody(String text) {
+	private String buildTokenizeRequestBody(final String text) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -268,7 +268,7 @@ public class GrokServiceImpl extends BaseAIService implements GrokService {
 	}
 
 	//构建文生图请求体
-	private String buildImagesGenerationsRequestBody(String prompt) {
+	private String buildImagesGenerationsRequestBody(final String prompt) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("prompt", prompt);
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolCommon.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolCommon.java
index 97ac1f0155..bc93c27631 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolCommon.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolCommon.java
@@ -33,7 +33,7 @@ public class HutoolCommon {
 
 		private final String detail;
 
-		HutoolVision(String detail) {
+		HutoolVision(final String detail) {
 			this.detail = detail;
 		}
 
@@ -57,7 +57,7 @@ public class HutoolCommon {
 
 		private final String voice;
 
-		HutoolSpeech(String voice) {
+		HutoolSpeech(final String voice) {
 			this.voice = voice;
 		}
 
@@ -94,7 +94,7 @@ public class HutoolCommon {
 		private final String type;
 		private final Object value;
 
-		HutoolVideo(String type, Object value) {
+		HutoolVideo(final String type, final Object value) {
 			this.type = type;
 			this.value = value;
 		}
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolConfig.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolConfig.java
index dbc16dd2e7..e75da3bbb0 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolConfig.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolConfig.java
@@ -36,7 +36,7 @@ public class HutoolConfig extends BaseAIConfig {
 		setModel(DEFAULT_MODEL);
 	}
 
-	public HutoolConfig(String apiKey) {
+	public HutoolConfig(final String apiKey) {
 		this();
 		setApiKey(apiKey);
 	}
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolService.java
index d85135c36b..e854e9bfb4 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolService.java
@@ -61,7 +61,7 @@ public interface HutoolService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatVision(String prompt, final List<String> images) {
+	default String chatVision(final String prompt, final List<String> images) {
 		return chatVision(prompt, images, HutoolCommon.HutoolVision.AUTO.getDetail());
 	}
 
@@ -73,7 +73,7 @@ public interface HutoolService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatVision(String prompt, final List<String> images, final Consumer<String> callback){
+	default void chatVision(final String prompt, final List<String> images, final Consumer<String> callback){
 		chatVision(prompt, images, HutoolCommon.HutoolVision.AUTO.getDetail(), callback);
 	}
 
@@ -122,7 +122,7 @@ public interface HutoolService extends AIService {
 	 * @return 返回的音频mp3文件流
 	 * @since 6.0.0
 	 */
-	default InputStream tts(String input) {
+	default InputStream tts(final String input) {
 		return tts(input, HutoolCommon.HutoolSpeech.ALLOY);
 	}
 
@@ -154,7 +154,7 @@ public interface HutoolService extends AIService {
 	 * @return 生成任务id
 	 * @since 6.0.0
 	 */
-	default String videoTasks(String text, String image) {
+	default String videoTasks(final String text, final String image) {
 		return videoTasks(text, image, null);
 	}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolServiceImpl.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolServiceImpl.java
index 1869b11490..fd00d4a4e0 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolServiceImpl.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/hutool/HutoolServiceImpl.java
@@ -63,69 +63,69 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 
 	@Override
 	public String chat(final List<Message> messages) {
-		String paramJson = buildChatRequestBody(messages);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+		final String paramJson = buildChatRequestBody(messages);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chat(List<Message> messages,Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
+	public void chat(final List<Message> messages, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "hutool-chat-sse").start();
 	}
 
 	@Override
-	public String chatVision(String prompt, final List<String> images, String detail) {
-		String paramJson = buildChatVisionRequestBody(prompt, images, detail);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+	public String chatVision(final String prompt, final List<String> images, final String detail) {
+		final String paramJson = buildChatVisionRequestBody(prompt, images, detail);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chatVision(String prompt, List<String> images, String detail, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
+	public void chatVision(final String prompt, final List<String> images, final String detail, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
 		System.out.println(JSONUtil.toJsonStr(paramMap));
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "hutool-chatVision-sse").start();
 	}
 
 	@Override
-	public String tokenizeText(String text) {
-		String paramJson = buildTokenizeRequestBody(text);
-		Response response = sendPost(TOKENIZE_TEXT, paramJson);
+	public String tokenizeText(final String text) {
+		final String paramJson = buildTokenizeRequestBody(text);
+		final Response response = sendPost(TOKENIZE_TEXT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String imagesGenerations(String prompt) {
-		String paramJson = buildImagesGenerationsRequestBody(prompt);
-		Response response = sendPost(IMAGES_GENERATIONS, paramJson);
+	public String imagesGenerations(final String prompt) {
+		final String paramJson = buildImagesGenerationsRequestBody(prompt);
+		final Response response = sendPost(IMAGES_GENERATIONS, paramJson);
 		return response.bodyStr();
 	}
 
 
 	@Override
-	public String embeddingVision(String text, String image) {
-		String paramJson = buildEmbeddingVisionRequestBody(text, image);
-		Response response = sendPost(EMBEDDING_VISION, paramJson);
+	public String embeddingVision(final String text, final String image) {
+		final String paramJson = buildEmbeddingVisionRequestBody(text, image);
+		final Response response = sendPost(EMBEDDING_VISION, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public InputStream tts(String input, final HutoolCommon.HutoolSpeech voice) {
+	public InputStream tts(final String input, final HutoolCommon.HutoolSpeech voice) {
 		try {
-			String paramJson = buildTTSRequestBody(input, voice.getVoice());
-			Response response = sendPost(TTS, paramJson);
+			final String paramJson = buildTTSRequestBody(input, voice.getVoice());
+			final Response response = sendPost(TTS, paramJson);
 
 			// 检查响应内容类型
-			String contentType = response.header("Content-Type");
+			final String contentType = response.header("Content-Type");
 			if (contentType != null && contentType.startsWith("application/json")) {
 				// 如果是JSON响应，说明有错误
-				String errorBody = response.bodyStr();
+				final String errorBody = response.bodyStr();
 				throw new AIException("TTS请求失败: " + errorBody);
 			}
 			// 默认返回音频流
 			return response.bodyStream();
-		} catch (Exception e) {
+		} catch (final Exception e) {
 			throw new AIException("TTS处理失败: " + e.getMessage(), e);
 		}
 	}
@@ -133,21 +133,21 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 	@Override
 	public String stt(final File file) {
 		final Map<String, Object> paramMap = buildSTTRequestBody(file);
-		Response response = sendFormData(STT, paramMap);
+		final Response response = sendFormData(STT, paramMap);
 		return response.bodyStr();
 	}
 
 
 	@Override
-	public String videoTasks(String text, String image, final List<HutoolCommon.HutoolVideo> videoParams) {
-		String paramJson = buildGenerationsTasksRequestBody(text, image, videoParams);
-		Response response = sendPost(CREATE_VIDEO, paramJson);
+	public String videoTasks(final String text, final String image, final List<HutoolCommon.HutoolVideo> videoParams) {
+		final String paramJson = buildGenerationsTasksRequestBody(text, image, videoParams);
+		final Response response = sendPost(CREATE_VIDEO, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String getVideoTasksInfo(String taskId) {
-		Response response = sendGet(CREATE_VIDEO + "/" + taskId);
+	public String getVideoTasksInfo(final String taskId) {
+		final Response response = sendGet(CREATE_VIDEO + "/" + taskId);
 		return response.bodyStr();
 	}
 
@@ -177,7 +177,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 	}
 
 	//构建chatVision请求体
-	private String buildChatVisionRequestBody(String prompt, final List<String> images, String detail) {
+	private String buildChatVisionRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -186,10 +186,10 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
-			HashMap<String, Object> imgUrlMap = new HashMap<>();
+		for (final String img : images) {
+			final HashMap<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
-			HashMap<String, String> urlMap = new HashMap<>();
+			final HashMap<String, String> urlMap = new HashMap<>();
 			urlMap.put("url", img);
 			urlMap.put("detail", detail);
 			imgUrlMap.put("image_url", urlMap);
@@ -207,7 +207,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 		return JSONUtil.toJsonStr(paramMap);
 	}
 
-	private Map<String, Object> buildChatVisionStreamRequestBody(String prompt, final List<String> images, String detail) {
+	private Map<String, Object> buildChatVisionStreamRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -216,10 +216,10 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
-			HashMap<String, Object> imgUrlMap = new HashMap<>();
+		for (final String img : images) {
+			final HashMap<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
-			HashMap<String, String> urlMap = new HashMap<>();
+			final HashMap<String, String> urlMap = new HashMap<>();
 			urlMap.put("url", img);
 			urlMap.put("detail", detail);
 			imgUrlMap.put("image_url", urlMap);
@@ -240,7 +240,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 
 
 	//构建分词请求体
-	private String buildTokenizeRequestBody(String text) {
+	private String buildTokenizeRequestBody(final String text) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -252,7 +252,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 	}
 
 	//构建文生图请求体
-	private String buildImagesGenerationsRequestBody(String prompt) {
+	private String buildImagesGenerationsRequestBody(final String prompt) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("prompt", prompt);
@@ -263,7 +263,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 	}
 
 	//构建图文向量化请求体
-	private String buildEmbeddingVisionRequestBody(String text, String image) {
+	private String buildEmbeddingVisionRequestBody(final String text, final String image) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -295,7 +295,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 
 
 	//构建TTS请求体
-	private String buildTTSRequestBody(String input, String voice) {
+	private String buildTTSRequestBody(final String input, final String voice) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("input", input);
@@ -318,7 +318,7 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 	}
 
 	//构建创建视频任务请求体
-	private String buildGenerationsTasksRequestBody(String text, String image, final List<HutoolCommon.HutoolVideo> videoParams) {
+	private String buildGenerationsTasksRequestBody(final String text, final String image, final List<HutoolCommon.HutoolVideo> videoParams) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -345,9 +345,9 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 		if (videoParams != null && !videoParams.isEmpty()) {
 			//如果有文本参数就加在后面
 			if (textMap != null && !textMap.isEmpty()) {
-				int textIndex = content.indexOf(textMap);
-				StringBuilder textBuilder = new StringBuilder(text);
-				for (HutoolCommon.HutoolVideo videoParam : videoParams) {
+				final int textIndex = content.indexOf(textMap);
+				final StringBuilder textBuilder = new StringBuilder(text);
+				for (final HutoolCommon.HutoolVideo videoParam : videoParams) {
 					textBuilder.append(" ").append(videoParam.getType()).append(" ").append(videoParam.getValue());
 				}
 				textMap.put("type", "text");
@@ -360,8 +360,8 @@ public class HutoolServiceImpl extends BaseAIService implements HutoolService {
 				}
 			} else {
 				//如果没有文本参数就重新增加
-				StringBuilder textBuilder = new StringBuilder();
-				for (HutoolCommon.HutoolVideo videoParam : videoParams) {
+				final StringBuilder textBuilder = new StringBuilder();
+				for (final HutoolCommon.HutoolVideo videoParam : videoParams) {
 					textBuilder.append(videoParam.getType()).append(videoParam.getValue()).append(" ");
 				}
 				textMap.put("type", "text");
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaCommon.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaCommon.java
index 203ce2e438..a248323d7f 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaCommon.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaCommon.java
@@ -39,7 +39,7 @@ public class OllamaCommon {
 
 		private final String format;
 
-		OllamaFormat(String format) {
+		OllamaFormat(final String format) {
 			this.format = format;
 		}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaConfig.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaConfig.java
index fdbb60db6c..074ca8f85d 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaConfig.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaConfig.java
@@ -36,12 +36,12 @@ public class OllamaConfig extends BaseAIConfig {
 		setModel(DEFAULT_MODEL);
 	}
 
-	public OllamaConfig(String apiUrl) {
+	public OllamaConfig(final String apiUrl) {
 		this();
 		setApiUrl(apiUrl);
 	}
 
-	public OllamaConfig(String apiUrl, String model) {
+	public OllamaConfig(final String apiUrl, final String model) {
 		this();
 		setApiUrl(apiUrl);
 		setModel(model);
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaService.java
index 7cf9223796..2e63c13655 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/ollama/OllamaService.java
@@ -130,7 +130,7 @@ public interface OllamaService extends AIService {
 	 * @return AI回答
 	 * @since 5.8.40
 	 */
-	default String chat(String prompt) {
+	default String chat(final String prompt) {
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("user", prompt));
 		return chat(messages);
@@ -143,7 +143,7 @@ public interface OllamaService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 5.8.40
 	 */
-	default void chat(String prompt, Consumer<String> callback) {
+	default void chat(final String prompt, final Consumer<String> callback) {
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("user", prompt));
 		chat(messages, callback);
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiCommon.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiCommon.java
index a73361b79a..f005e01afe 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiCommon.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiCommon.java
@@ -33,7 +33,7 @@ public class OpenaiCommon {
 
 		private final String effort;
 
-		OpenaiReasoning(String effort) {
+		OpenaiReasoning(final String effort) {
 			this.effort = effort;
 		}
 
@@ -51,7 +51,7 @@ public class OpenaiCommon {
 
 		private final String detail;
 
-		OpenaiVision(String detail) {
+		OpenaiVision(final String detail) {
 			this.detail = detail;
 		}
 
@@ -75,7 +75,7 @@ public class OpenaiCommon {
 
 		private final String voice;
 
-		OpenaiSpeech(String voice) {
+		OpenaiSpeech(final String voice) {
 			this.voice = voice;
 		}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiConfig.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiConfig.java
index 009ebe8bb7..fbfda469fa 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiConfig.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiConfig.java
@@ -36,7 +36,7 @@ public class OpenaiConfig extends BaseAIConfig {
 		setModel(DEFAULT_MODEL);
 	}
 
-	public OpenaiConfig(String apiKey) {
+	public OpenaiConfig(final String apiKey) {
 		this();
 		setApiKey(apiKey);
 	}
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiService.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiService.java
index 2243f5b5b7..224600dc4c 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiService.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiService.java
@@ -63,7 +63,7 @@ public interface OpenaiService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatVision(String prompt, final List<String> images) {
+	default String chatVision(final String prompt, final List<String> images) {
 		return chatVision(prompt, images, OpenaiCommon.OpenaiVision.AUTO.getDetail());
 	}
 
@@ -75,7 +75,7 @@ public interface OpenaiService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatVision(String prompt, final List<String> images, final Consumer<String> callback){
+	default void chatVision(final String prompt, final List<String> images, final Consumer<String> callback){
 		chatVision(prompt, images, OpenaiCommon.OpenaiVision.AUTO.getDetail(), callback);
 	}
 
@@ -107,7 +107,7 @@ public interface OpenaiService extends AIService {
 	 * @return 包含生成图片的url
 	 * @since 6.0.0
 	 */
-	default String imagesEdits(String prompt, final File image) {
+	default String imagesEdits(final String prompt, final File image) {
 		return imagesEdits(prompt, image, null);
 	}
 
@@ -137,7 +137,7 @@ public interface OpenaiService extends AIService {
 	 * @return 返回的音频mp3文件流
 	 * @since 6.0.0
 	 */
-	default InputStream textToSpeech(String input) {
+	default InputStream textToSpeech(final String input) {
 		return textToSpeech(input, OpenaiCommon.OpenaiSpeech.ALLOY);
 	}
 
@@ -178,7 +178,7 @@ public interface OpenaiService extends AIService {
 	 * @return AI返回结果
 	 * @since 6.0.0
 	 */
-	default String moderations(String text) {
+	default String moderations(final String text) {
 		return moderations(text, null);
 	}
 
@@ -191,7 +191,7 @@ public interface OpenaiService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatReasoning(String prompt, String reasoningEffort){
+	default String chatReasoning(final String prompt, final String reasoningEffort){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
@@ -207,7 +207,7 @@ public interface OpenaiService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatReasoning(String prompt, String reasoningEffort, final Consumer<String> callback){
+	default void chatReasoning(final String prompt, final String reasoningEffort, final Consumer<String> callback){
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("system", "You are a helpful assistant"));
 		messages.add(new Message("user", prompt));
@@ -222,7 +222,7 @@ public interface OpenaiService extends AIService {
 	 * @return AI回答
 	 * @since 6.0.0
 	 */
-	default String chatReasoning(String prompt) {
+	default String chatReasoning(final String prompt) {
 		return chatReasoning(prompt, OpenaiCommon.OpenaiReasoning.MEDIUM.getEffort());
 	}
 
@@ -234,7 +234,7 @@ public interface OpenaiService extends AIService {
 	 * @param callback 流式数据回调函数
 	 * @since 6.0.0
 	 */
-	default void chatReasoning(String prompt, final Consumer<String> callback) {
+	default void chatReasoning(final String prompt, final Consumer<String> callback) {
 		chatReasoning(prompt, OpenaiCommon.OpenaiReasoning.MEDIUM.getEffort(), callback);
 	}
 
diff --git a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiServiceImpl.java b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiServiceImpl.java
index f051173c1e..e23b8f23de 100644
--- a/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiServiceImpl.java
+++ b/hutool-ai/src/main/java/cn/hutool/v7/ai/model/openai/OpenaiServiceImpl.java
@@ -64,89 +64,89 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 
 	@Override
 	public String chat(final List<Message> messages) {
-		String paramJson = buildChatRequestBody(messages);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+		final String paramJson = buildChatRequestBody(messages);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chat(List<Message> messages, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
+	public void chat(final List<Message> messages, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatStreamRequestBody(messages);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "openai-chat-sse").start();
 	}
 
 	@Override
-	public String chatVision(String prompt, final List<String> images, String detail) {
-		String paramJson = buildChatVisionRequestBody(prompt, images, detail);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+	public String chatVision(final String prompt, final List<String> images, final String detail) {
+		final String paramJson = buildChatVisionRequestBody(prompt, images, detail);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chatVision(String prompt, List<String> images, String detail, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
+	public void chatVision(final String prompt, final List<String> images, final String detail, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatVisionStreamRequestBody(prompt, images, detail);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "openai-chatVision-sse").start();
 	}
 
 	@Override
-	public String imagesGenerations(String prompt) {
-		String paramJson = buildImagesGenerationsRequestBody(prompt);
-		Response response = sendPost(IMAGES_GENERATIONS, paramJson);
+	public String imagesGenerations(final String prompt) {
+		final String paramJson = buildImagesGenerationsRequestBody(prompt);
+		final Response response = sendPost(IMAGES_GENERATIONS, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String imagesEdits(String prompt, final File image, final File mask) {
+	public String imagesEdits(final String prompt, final File image, final File mask) {
 		final Map<String, Object> paramMap = buildImagesEditsRequestBody(prompt, image, mask);
-		Response response = sendFormData(IMAGES_EDITS, paramMap);
+		final Response response = sendFormData(IMAGES_EDITS, paramMap);
 		return response.bodyStr();
 	}
 
 	@Override
 	public String imagesVariations(final File image) {
 		final Map<String, Object> paramMap = buildImagesVariationsRequestBody(image);
-		Response response = sendFormData(IMAGES_VARIATIONS, paramMap);
+		final Response response = sendFormData(IMAGES_VARIATIONS, paramMap);
 		return response.bodyStr();
 	}
 
 	@Override
-	public InputStream textToSpeech(String input, final OpenaiCommon.OpenaiSpeech voice) {
-		String paramJson = buildTTSRequestBody(input, voice.getVoice());
-		Response response = sendPost(TTS, paramJson);
+	public InputStream textToSpeech(final String input, final OpenaiCommon.OpenaiSpeech voice) {
+		final String paramJson = buildTTSRequestBody(input, voice.getVoice());
+		final Response response = sendPost(TTS, paramJson);
 		return response.bodyStream();
 	}
 
 	@Override
 	public String speechToText(final File file) {
 		final Map<String, Object> paramMap = buildSTTRequestBody(file);
-		Response response = sendFormData(STT, paramMap);
+		final Response response = sendFormData(STT, paramMap);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String embeddingText(String input) {
-		String paramJson = buildEmbeddingTextRequestBody(input);
-		Response response = sendPost(EMBEDDINGS, paramJson);
+	public String embeddingText(final String input) {
+		final String paramJson = buildEmbeddingTextRequestBody(input);
+		final Response response = sendPost(EMBEDDINGS, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String moderations(String text, String imgUrl) {
-		String paramJson = buileModerationsRequestBody(text, imgUrl);
-		Response response = sendPost(MODERATIONS, paramJson);
+	public String moderations(final String text, final String imgUrl) {
+		final String paramJson = buileModerationsRequestBody(text, imgUrl);
+		final Response response = sendPost(MODERATIONS, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public String chatReasoning(final List<Message> messages, String reasoningEffort) {
-		String paramJson = buildChatReasoningRequestBody(messages, reasoningEffort);
-		Response response = sendPost(CHAT_ENDPOINT, paramJson);
+	public String chatReasoning(final List<Message> messages, final String reasoningEffort) {
+		final String paramJson = buildChatReasoningRequestBody(messages, reasoningEffort);
+		final Response response = sendPost(CHAT_ENDPOINT, paramJson);
 		return response.bodyStr();
 	}
 
 	@Override
-	public void chatReasoning(List<Message> messages, String reasoningEffort, Consumer<String> callback) {
-		Map<String, Object> paramMap = buildChatReasoningStreamRequestBody(messages, reasoningEffort);
+	public void chatReasoning(final List<Message> messages, final String reasoningEffort, final Consumer<String> callback) {
+		final Map<String, Object> paramMap = buildChatReasoningStreamRequestBody(messages, reasoningEffort);
 		ThreadUtil.newThread(() -> sendPostStream(CHAT_ENDPOINT, paramMap, callback), "openai-chatReasoning-sse").start();
 	}
 
@@ -175,7 +175,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建chatVision请求体
-	private String buildChatVisionRequestBody(String prompt, final List<String> images, String detail) {
+	private String buildChatVisionRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -184,7 +184,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
+		for (final String img : images) {
 			final Map<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
 			final Map<String, String> urlMap = new HashMap<>();
@@ -205,7 +205,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 		return JSONUtil.toJsonStr(paramMap);
 	}
 
-	private Map<String, Object> buildChatVisionStreamRequestBody(String prompt, final List<String> images, String detail) {
+	private Map<String, Object> buildChatVisionStreamRequestBody(final String prompt, final List<String> images, final String detail) {
 		// 定义消息结构
 		final List<Message> messages = new ArrayList<>();
 		final List<Object> content = new ArrayList<>();
@@ -214,10 +214,10 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 		contentMap.put("type", "text");
 		contentMap.put("text", prompt);
 		content.add(contentMap);
-		for (String img : images) {
-			HashMap<String, Object> imgUrlMap = new HashMap<>();
+		for (final String img : images) {
+			final HashMap<String, Object> imgUrlMap = new HashMap<>();
 			imgUrlMap.put("type", "image_url");
-			HashMap<String, String> urlMap = new HashMap<>();
+			final HashMap<String, String> urlMap = new HashMap<>();
 			urlMap.put("url", img);
 			urlMap.put("detail", detail);
 			imgUrlMap.put("image_url", urlMap);
@@ -237,7 +237,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建文生图请求体
-	private String buildImagesGenerationsRequestBody(String prompt) {
+	private String buildImagesGenerationsRequestBody(final String prompt) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("prompt", prompt);
@@ -248,7 +248,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建图片编辑请求体
-	private Map<String, Object> buildImagesEditsRequestBody(String prompt, final File image, final File mask) {
+	private Map<String, Object> buildImagesEditsRequestBody(final String prompt, final File image, final File mask) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("prompt", prompt);
@@ -274,7 +274,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建TTS请求体
-	private String buildTTSRequestBody(String input, String voice) {
+	private String buildTTSRequestBody(final String input, final String voice) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("input", input);
@@ -297,7 +297,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建文本向量化请求体
-	private String buildEmbeddingTextRequestBody(String input) {
+	private String buildEmbeddingTextRequestBody(final String input) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -308,7 +308,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建检查图片或文字请求体
-	private String buileModerationsRequestBody(String text, String imgUrl) {
+	private String buileModerationsRequestBody(final String text, final String imgUrl) {
 		//使用JSON工具
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
@@ -339,7 +339,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 	}
 
 	//构建推理请求体
-	private String buildChatReasoningRequestBody(final List<Message> messages, String reasoningEffort) {
+	private String buildChatReasoningRequestBody(final List<Message> messages, final String reasoningEffort) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("model", config.getModel());
 		paramMap.put("messages", messages);
@@ -350,7 +350,7 @@ public class OpenaiServiceImpl extends BaseAIService implements OpenaiService {
 		return JSONUtil.toJsonStr(paramMap);
 	}
 
-	private Map<String, Object> buildChatReasoningStreamRequestBody(final List<Message> messages, String reasoningEffort) {
+	private Map<String, Object> buildChatReasoningStreamRequestBody(final List<Message> messages, final String reasoningEffort) {
 		final Map<String, Object> paramMap = new HashMap<>();
 		paramMap.put("stream", true);
 		paramMap.put("model", config.getModel());
diff --git a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceTest.java b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceTest.java
index 55ee319e17..660325adce 100644
--- a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceTest.java
+++ b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/deepseek/DeepSeekServiceTest.java
@@ -45,9 +45,9 @@ class DeepSeekServiceTest {
 	@Test
 	@Disabled
 	void chatStream() {
-		String prompt = "写一个疯狂星期四广告词";
+		final String prompt = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		deepSeekService.chat(prompt, data -> {
 			assertNotNull(data);
@@ -85,9 +85,9 @@ class DeepSeekServiceTest {
 	@Test
 	@Disabled
 	void betaStream() {
-		String beta = "写一个疯狂星期四广告词";
+		final String beta = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		deepSeekService.beta(beta, data -> {
 			assertNotNull(data);
diff --git a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/doubao/DoubaoServiceTest.java b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/doubao/DoubaoServiceTest.java
index 07182ba76b..1311d53a47 100644
--- a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/doubao/DoubaoServiceTest.java
+++ b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/doubao/DoubaoServiceTest.java
@@ -48,9 +48,9 @@ class DoubaoServiceTest {
 	@Test
 	@Disabled
 	void chatStream() {
-		String prompt = "写一个疯狂星期四广告词";
+		final String prompt = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		doubaoService.chat(prompt, data -> {
 			assertNotNull(data);
@@ -94,11 +94,11 @@ class DoubaoServiceTest {
 		final DoubaoService doubaoService = AIServiceFactory.getAIService(new AIConfigBuilder(ModelName.DOUBAO.getValue())
 			.setApiKey(key).setModel(Models.Doubao.DOUBAO_1_5_VISION_PRO_32K.getModel()).build(), DoubaoService.class);
 
-		String prompt = "图片上有些什么？";
-		List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
+		final String prompt = "图片上有些什么？";
+		final List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		doubaoService.chatVision(prompt,images, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
@@ -184,7 +184,7 @@ class DoubaoServiceTest {
 		messages.add(new Message("user","你想做些什么"));
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		doubaoService.botsChat(messages, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
@@ -278,10 +278,10 @@ class DoubaoServiceTest {
 			.setApiKey(key).setModel("your Endpoint ID").build(), DoubaoService.class);
 		final List<Message> messages = new ArrayList<>();
 		messages.add(new Message("user","你怎么看待意大利面拌水泥？"));
-		String contextId  = "your contextId";
+		final String contextId  = "your contextId";
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		doubaoService.chatContext(messages,contextId, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
diff --git a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/grok/GrokServiceTest.java b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/grok/GrokServiceTest.java
index 76c6c6b8aa..5bea9b563c 100644
--- a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/grok/GrokServiceTest.java
+++ b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/grok/GrokServiceTest.java
@@ -49,9 +49,9 @@ class GrokServiceTest {
 	@Test
 	@Disabled
 	void chatStream() {
-		String prompt = "写一个疯狂星期四广告词";
+		final String prompt = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		grokService.chat(prompt, data -> {
 			assertNotNull(data);
@@ -89,10 +89,10 @@ class GrokServiceTest {
 	@Test
 	@Disabled
 	void messageStream() {
-		String prompt = "给我一个KFC的广告词";
+		final String prompt = "给我一个KFC的广告词";
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		grokService.message(prompt, 4096, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
@@ -122,11 +122,11 @@ class GrokServiceTest {
 	@Disabled
 	void testChatVisionStream() {
 		final GrokService grokService = AIServiceFactory.getAIService(new AIConfigBuilder(ModelName.GROK.getValue()).setModel(Models.Grok.GROK_2_VISION_1212.getModel()).setApiKey(key).build(), GrokService.class);
-		String prompt = "图片上有些什么？";
-		List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
+		final String prompt = "图片上有些什么？";
+		final List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		grokService.chatVision(prompt,images, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
diff --git a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/hutool/HutoolServiceTest.java b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/hutool/HutoolServiceTest.java
index 6b0eb26847..b97ea8f9b4 100644
--- a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/hutool/HutoolServiceTest.java
+++ b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/hutool/HutoolServiceTest.java
@@ -52,9 +52,9 @@ class HutoolServiceTest {
 	@Test
 	@Disabled
 	void chatStream() {
-		String prompt = "写一个疯狂星期四广告词";
+		final String prompt = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		hutoolService.chat(prompt, data -> {
 			assertNotNull(data);
@@ -94,11 +94,11 @@ class HutoolServiceTest {
 	@Test
 	@Disabled
 	void testChatVisionStream() {
-		String prompt = "图片上有些什么？";
-		List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
+		final String prompt = "图片上有些什么？";
+		final List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544");
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		hutoolService.chatVision(prompt,images, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
@@ -160,7 +160,7 @@ class HutoolServiceTest {
 			final String filePath = "your filePath";
 			FileUtil.writeFromStream(inputStream, new File(filePath));
 
-		} catch (Exception e) {
+		} catch (final Exception e) {
 			throw new AIException("TTS测试失败: " + e.getMessage());
 		}
 
diff --git a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/openai/OpenaiServiceTest.java b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/openai/OpenaiServiceTest.java
index 9055655c58..56040cc5fe 100644
--- a/hutool-ai/src/test/java/cn/hutool/v7/ai/model/openai/OpenaiServiceTest.java
+++ b/hutool-ai/src/test/java/cn/hutool/v7/ai/model/openai/OpenaiServiceTest.java
@@ -56,9 +56,9 @@ class OpenaiServiceTest {
 	@Test
 	@Disabled
 	void chatStream() {
-		String prompt = "写一个疯狂星期四广告词";
+		final String prompt = "写一个疯狂星期四广告词";
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 
 		openaiService.chat(prompt, data -> {
 			assertNotNull(data);
@@ -91,11 +91,11 @@ class OpenaiServiceTest {
 	void testChatVisionStream() {
 		final OpenaiService openaiService = AIServiceFactory.getAIService(new AIConfigBuilder(ModelName.OPENAI.getValue())
 			.setApiKey(key).setModel(Models.Openai.GPT_4O_MINI.getModel()).build(), OpenaiService.class);
-		String prompt = "图片上有些什么？";
-		List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544\",\"https://img2.baidu.com/it/u=1682510685,1244554634&fm=253&fmt=auto&app=138&f=JPEG?w=803&h=800");
+		final String prompt = "图片上有些什么？";
+		final List<String> images = List.of("https://img2.baidu.com/it/u=862000265,4064861820&fm=253&fmt=auto&app=138&f=JPEG?w=800&h=1544\",\"https://img2.baidu.com/it/u=1682510685,1244554634&fm=253&fmt=auto&app=138&f=JPEG?w=803&h=800");
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		openaiService.chatVision(prompt,images, data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
@@ -226,7 +226,7 @@ class OpenaiServiceTest {
 		messages.add(new Message("user","给我一个KFC疯狂星期四的文案"));
 
 		// 使用AtomicBoolean作为结束标志
-		AtomicBoolean isDone = new AtomicBoolean(false);
+		final AtomicBoolean isDone = new AtomicBoolean(false);
 		openaiService.chatReasoning(messages,OpenaiCommon.OpenaiReasoning.HIGH.getEffort(), data -> {
 			assertNotNull(data);
 			if (data.contains("[DONE]")) {
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/bean/BeanUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/bean/BeanUtil.java
index e72464f377..e5b5366018 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/bean/BeanUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/bean/BeanUtil.java
@@ -201,7 +201,7 @@ public class BeanUtil {
 		}
 
 		// 先尝试直接获取属性
-		if (bean instanceof Map<?, ?> map) {
+		if (bean instanceof final Map<?, ?> map) {
 			if (map.containsKey(expression)) {
 				return (T) map.get(expression);
 			}
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/codec/Number128.java b/hutool-core/src/main/java/cn/hutool/v7/core/codec/Number128.java
index aa7e049acc..dc8a477c67 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/codec/Number128.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/codec/Number128.java
@@ -134,7 +134,7 @@ public class Number128 extends Number implements Comparable<Number128>{
 		if (this == o) {
 			return true;
 		}
-		if (o instanceof Number128 number128) {
+		if (o instanceof final Number128 number128) {
 			return leastSigBits == number128.leastSigBits && mostSigBits == number128.mostSigBits;
 		}
 		return false;
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/collection/CollUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/collection/CollUtil.java
index e2e2e92057..0e6f60ebbd 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/collection/CollUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/collection/CollUtil.java
@@ -1408,7 +1408,7 @@ public class CollUtil {
 	 * @return 合并后的新列表
 	 * @since 5.8.42
 	 */
-	public static <A, B, R> List<R> zip(Collection<A> collectionA, Collection<B> collectionB, BiFunction<A, B, R> zipper) {
+	public static <A, B, R> List<R> zip(final Collection<A> collectionA, final Collection<B> collectionB, final BiFunction<A, B, R> zipper) {
 		if (CollUtil.isEmpty(collectionA) || CollUtil.isEmpty(collectionB)) {
 			return new ArrayList<>();
 		}
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/collection/set/SetUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/collection/set/SetUtil.java
index c3aa6042bf..ae1cfcab4d 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/collection/set/SetUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/collection/set/SetUtil.java
@@ -88,7 +88,7 @@ public class SetUtil {
 		if (null == iterable) {
 			return of(isLinked);
 		}
-		if (iterable instanceof Collection<T> collection) {
+		if (iterable instanceof final Collection<T> collection) {
 			return isLinked ? new LinkedHashSet<>(collection) : new HashSet<>(collection);
 		}
 		return of(isLinked, iterable.iterator());
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/ArrayConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/ArrayConverter.java
index f3b15dd681..12c2cb1c1d 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/ArrayConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/ArrayConverter.java
@@ -182,14 +182,14 @@ public class ArrayConverter extends AbstractConverter implements MatcherConverte
 	 */
 	private Object convertIterableToArray(final Class<?> targetComponentType, final Iterable<?> value) {
 		final Object result;
-		if (value instanceof List<?> list) {
+		if (value instanceof final List<?> list) {
 			// List转数组
 			final int size = list.size();
 			result = Array.newInstance(targetComponentType, size);
 			for (int i = 0; i < size; i++) {
 				Array.set(result, i, convertComponentType(targetComponentType, list.get(i)));
 			}
-		} else if (value instanceof Collection<?> collection) {
+		} else if (value instanceof final Collection<?> collection) {
 			// 集合转数组
 			result = Array.newInstance(targetComponentType, collection.size());
 
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/EntryConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/EntryConverter.java
index 12c6888476..946194cff0 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/EntryConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/EntryConverter.java
@@ -89,14 +89,14 @@ public class EntryConverter extends ConverterWithRoot implements MatcherConverte
 	public Map.Entry<?, ?> convert(final Type targetType, final Type keyType, final Type valueType, final Object value)
 		throws ConvertException {
 		Map map = null;
-		if (value instanceof Map.Entry entry) {
+		if (value instanceof final Map.Entry entry) {
 			map = MapUtil.of(entry.getKey(), entry.getValue());
 		} else if (value instanceof Pair) {
 			final Pair entry = (Pair<?, ?>) value;
 			map = MapUtil.of(entry.getLeft(), entry.getRight());
 		} else if (value instanceof Map) {
 			map = (Map) value;
-		} else if (value instanceof CharSequence str) {
+		} else if (value instanceof final CharSequence str) {
 			map = strToMap(str);
 		} else if (BeanUtil.isWritableBean(value.getClass())) {
 			// 一次性只读场景，包装为Map效率更高
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/PairConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/PairConverter.java
index 572ed751f1..dc6ccb3ffe 100755
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/PairConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/PairConverter.java
@@ -80,14 +80,14 @@ public class PairConverter extends ConverterWithRoot implements Serializable {
 	public Pair<?, ?> convert(final Type leftType, final Type rightType, final Object value)
 		throws ConvertException {
 		Map map = null;
-		if (value instanceof Map.Entry entry) {
+		if (value instanceof final Map.Entry entry) {
 			map = MapUtil.of(entry.getKey(), entry.getValue());
 		} else if (value instanceof Pair) {
 			final Pair entry = (Pair<?, ?>) value;
 			map = MapUtil.of(entry.getLeft(), entry.getRight());
 		} else if (value instanceof Map) {
 			map = (Map) value;
-		} else if (value instanceof CharSequence str) {
+		} else if (value instanceof final CharSequence str) {
 			map = strToMap(str);
 		} else if (BeanUtil.isReadableBean(value.getClass())) {
 			// 一次性只读场景，包装为Map效率更高
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/StackTraceElementConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/StackTraceElementConverter.java
index 0e7c839416..59e5bf5ea1 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/StackTraceElementConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/StackTraceElementConverter.java
@@ -36,7 +36,7 @@ public class StackTraceElementConverter extends AbstractConverter {
 
 	@Override
 	protected StackTraceElement convertInternal(final Class<?> targetClass, final Object value) {
-		if (value instanceof Map<?, ?> map) {
+		if (value instanceof final Map<?, ?> map) {
 
 			final String declaringClass = MapUtil.getStr(map, "className");
 			final String methodName = MapUtil.getStr(map, "methodName");
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/TemporalAccessorConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/TemporalAccessorConverter.java
index 94c1ffb1e7..e3c825cc2b 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/TemporalAccessorConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/TemporalAccessorConverter.java
@@ -110,7 +110,7 @@ public class TemporalAccessorConverter extends AbstractConverter {
 		} else if (value instanceof Date) {
 			final DateTime dateTime = DateUtil.date((Date) value);
 			return parseFromInstant(targetClass, dateTime.toInstant(), dateTime.getZoneId());
-		} else if (value instanceof Calendar calendar) {
+		} else if (value instanceof final Calendar calendar) {
 			return parseFromInstant(targetClass, calendar.toInstant(), calendar.getTimeZone().toZoneId());
 		} else {
 			return parseFromCharSequence(targetClass, convertToStr(value));
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/XMLGregorianCalendarConverter.java b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/XMLGregorianCalendarConverter.java
index 9d318e9b7c..b0677a84ac 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/XMLGregorianCalendarConverter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/convert/impl/XMLGregorianCalendarConverter.java
@@ -87,7 +87,7 @@ public class XMLGregorianCalendarConverter extends AbstractConverter {
 		// Handle Date
 		if (value instanceof Date) {
 			gregorianCalendar.setTime((Date) value);
-		} else if (value instanceof Calendar calendar) {
+		} else if (value instanceof final Calendar calendar) {
 			gregorianCalendar.setTimeZone(calendar.getTimeZone());
 			gregorianCalendar.setFirstDayOfWeek(calendar.getFirstDayOfWeek());
 			gregorianCalendar.setLenient(calendar.isLenient());
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/DatePattern.java b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/DatePattern.java
index 1f1357bd9e..0b8bd507e0 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/DatePattern.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/DatePattern.java
@@ -348,18 +348,7 @@ public class DatePattern {
 	 * Inner class to output a constant single character.
 	 * </p>
 	 */
-	private static class CharacterLiteral implements Rule {
-		private final char mValue;
-
-		/**
-		 * Constructs a new instance of {@code CharacterLiteral} to hold the specified value.
-		 *
-		 * @param value the character literal
-		 */
-		CharacterLiteral(final char value) {
-			mValue = value;
-		}
-
+	private record CharacterLiteral(char mValue) implements Rule {
 		@Override
 		public int estimateLength() {
 			return 1;
@@ -376,18 +365,7 @@ public class DatePattern {
 	 * Inner class to output a constant string.
 	 * </p>
 	 */
-	private static class StringLiteral implements Rule {
-		private final String mValue;
-
-		/**
-		 * Constructs a new instance of {@code StringLiteral} to hold the specified value.
-		 *
-		 * @param value the string literal
-		 */
-		StringLiteral(final String value) {
-			mValue = value;
-		}
-
+	private record StringLiteral(String mValue) implements Rule {
 		@Override
 		public int estimateLength() {
 			return mValue.length();
@@ -404,21 +382,7 @@ public class DatePattern {
 	 * Inner class to output one of a set of values.
 	 * </p>
 	 */
-	private static class TextField implements Rule {
-		private final int mField;
-		private final String[] mValues;
-
-		/**
-		 * Constructs an instance of {@code TextField} with the specified field and values.
-		 *
-		 * @param field  the field
-		 * @param values the field values
-		 */
-		TextField(final int field, final String[] values) {
-			mField = field;
-			mValues = values;
-		}
-
+	private record TextField(int mField, String[] mValues) implements Rule {
 		@Override
 		public int estimateLength() {
 			int max = 0;
@@ -431,6 +395,7 @@ public class DatePattern {
 			return max;
 		}
 
+		@SuppressWarnings("MagicConstant")
 		@Override
 		public void appendTo(final Appendable buffer, final Calendar calendar) throws IOException {
 			buffer.append(mValues[calendar.get(mField)]);
@@ -442,23 +407,14 @@ public class DatePattern {
 	 * Inner class to output an unpadded number.
 	 * </p>
 	 */
-	private static class UnpaddedNumberField implements NumberRule {
-		private final int mField;
-
-		/**
-		 * Constructs an instance of {@code UnpadedNumberField} with the specified field.
-		 *
-		 * @param field the field
-		 */
-		UnpaddedNumberField(final int field) {
-			mField = field;
-		}
+	private record UnpaddedNumberField(int mField) implements NumberRule {
 
 		@Override
 		public int estimateLength() {
 			return 4;
 		}
 
+		@SuppressWarnings("MagicConstant")
 		@Override
 		public void appendTo(final Appendable buffer, final Calendar calendar) throws IOException {
 			appendTo(buffer, calendar.get(mField));
@@ -515,23 +471,18 @@ public class DatePattern {
 	 * Inner class to output a padded number.
 	 * </p>
 	 */
-	private static class PaddedNumberField implements NumberRule {
-		private final int mField;
-		private final int mSize;
-
+	private record PaddedNumberField(int mField, int mSize) implements NumberRule {
 		/**
 		 * Constructs an instance of {@code PaddedNumberField}.
 		 *
-		 * @param field the field
-		 * @param size  size of the output field
+		 * @param mField the field
+		 * @param mSize  size of the output field
 		 */
-		PaddedNumberField(final int field, final int size) {
-			if (size < 3) {
+		private PaddedNumberField {
+			if (mSize < 3) {
 				// Should use UnpaddedNumberField or TwoDigitNumberField.
 				throw new IllegalArgumentException();
 			}
-			mField = field;
-			mSize = size;
 		}
 
 		@Override
@@ -539,6 +490,7 @@ public class DatePattern {
 			return mSize;
 		}
 
+		@SuppressWarnings("MagicConstant")
 		@Override
 		public void appendTo(final Appendable buffer, final Calendar calendar) throws IOException {
 			appendTo(buffer, calendar.get(mField));
@@ -555,23 +507,13 @@ public class DatePattern {
 	 * Inner class to output a two digit number.
 	 * </p>
 	 */
-	private static class TwoDigitNumberField implements NumberRule {
-		private final int mField;
-
-		/**
-		 * Constructs an instance of {@code TwoDigitNumberField} with the specified field.
-		 *
-		 * @param field the field
-		 */
-		TwoDigitNumberField(final int field) {
-			mField = field;
-		}
-
+	private record TwoDigitNumberField(int mField) implements NumberRule {
 		@Override
 		public int estimateLength() {
 			return 2;
 		}
 
+		@SuppressWarnings("MagicConstant")
 		@Override
 		public void appendTo(final Appendable buffer, final Calendar calendar) throws IOException {
 			appendTo(buffer, calendar.get(mField));
@@ -652,18 +594,7 @@ public class DatePattern {
 	 * Inner class to output the twelve hour field.
 	 * </p>
 	 */
-	private static class TwelveHourField implements NumberRule {
-		private final NumberRule mRule;
-
-		/**
-		 * Constructs an instance of {@code TwelveHourField} with the specified {@code NumberRule}.
-		 *
-		 * @param rule the rule
-		 */
-		TwelveHourField(final NumberRule rule) {
-			mRule = rule;
-		}
-
+	private record TwelveHourField(NumberRule mRule) implements NumberRule {
 		@Override
 		public int estimateLength() {
 			return mRule.estimateLength();
@@ -685,22 +616,9 @@ public class DatePattern {
 	}
 
 	/**
-	 * <p>
 	 * Inner class to output the twenty four hour field.
-	 * </p>
 	 */
-	private static class TwentyFourHourField implements NumberRule {
-		private final NumberRule mRule;
-
-		/**
-		 * Constructs an instance of {@code TwentyFourHourField} with the specified {@code NumberRule}.
-		 *
-		 * @param rule the rule
-		 */
-		TwentyFourHourField(final NumberRule rule) {
-			mRule = rule;
-		}
-
+	private record TwentyFourHourField(NumberRule mRule) implements NumberRule {
 		@Override
 		public int estimateLength() {
 			return mRule.estimateLength();
@@ -722,17 +640,9 @@ public class DatePattern {
 	}
 
 	/**
-	 * <p>
 	 * Inner class to output the numeric day in week.
-	 * </p>
 	 */
-	private static class DayInWeekField implements NumberRule {
-		private final NumberRule mRule;
-
-		DayInWeekField(final NumberRule rule) {
-			mRule = rule;
-		}
-
+	private record DayInWeekField(NumberRule mRule) implements NumberRule {
 		@Override
 		public int estimateLength() {
 			return mRule.estimateLength();
@@ -751,17 +661,9 @@ public class DatePattern {
 	}
 
 	/**
-	 * <p>
 	 * Inner class to output the numeric day in week.
-	 * </p>
 	 */
-	private static class WeekYear implements NumberRule {
-		private final NumberRule mRule;
-
-		WeekYear(final NumberRule rule) {
-			mRule = rule;
-		}
-
+	private record WeekYear(NumberRule mRule) implements NumberRule {
 		@Override
 		public int estimateLength() {
 			return mRule.estimateLength();
@@ -784,9 +686,7 @@ public class DatePattern {
 	}
 
 	/**
-	 * <p>
 	 * Inner class to output a time zone name.
-	 * </p>
 	 */
 	private static class TimeZoneNameRule implements Rule {
 		private final Locale mLocale;
@@ -829,25 +729,12 @@ public class DatePattern {
 	}
 
 	/**
-	 * <p>
 	 * Inner class to output a time zone as a number {@code +/-HHMM} or {@code +/-HH:MM}.
-	 * </p>
 	 */
-	private static class TimeZoneNumberRule implements Rule {
+	private record TimeZoneNumberRule(boolean mColon) implements Rule {
 		static final TimeZoneNumberRule INSTANCE_COLON = new TimeZoneNumberRule(true);
 		static final TimeZoneNumberRule INSTANCE_NO_COLON = new TimeZoneNumberRule(false);
 
-		final boolean mColon;
-
-		/**
-		 * Constructs an instance of {@code TimeZoneNumberRule} with the specified properties.
-		 *
-		 * @param colon add colon between HH and MM in the output if {@code true}
-		 */
-		TimeZoneNumberRule(final boolean colon) {
-			mColon = colon;
-		}
-
 		@Override
 		public int estimateLength() {
 			return 5;
@@ -882,7 +769,7 @@ public class DatePattern {
 	 * Inner class to output a time zone as a number {@code +/-HHMM} or {@code +/-HH:MM}.
 	 * </p>
 	 */
-	private static class Iso8601_Rule implements Rule {
+	private record Iso8601_Rule(int length) implements Rule {
 
 		// Sign TwoDigitHours or Z
 		static final Iso8601_Rule ISO8601_HOURS = new Iso8601_Rule(3);
@@ -906,15 +793,12 @@ public class DatePattern {
 			};
 		}
 
-		final int length;
-
 		/**
 		 * Constructs an instance of {@code Iso8601_Rule} with the specified properties.
 		 *
 		 * @param length The number of characters in output (unless Z is output)
 		 */
-		Iso8601_Rule(final int length) {
-			this.length = length;
+		private Iso8601_Rule {
 		}
 
 		@Override
@@ -1103,7 +987,7 @@ public class DatePattern {
 			if (this == obj) {
 				return true;
 			}
-			if (obj instanceof TimeZoneDisplayKey other) {
+			if (obj instanceof final TimeZoneDisplayKey other) {
 				return mTimeZone.equals(other.mTimeZone) && mStyle == other.mStyle && mLocale.equals(other.mLocale);
 			}
 			return false;
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/FastDateFormat.java b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/FastDateFormat.java
index 4bb36c42ef..0a608a668d 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/FastDateFormat.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/FastDateFormat.java
@@ -436,7 +436,7 @@ public class FastDateFormat extends Format implements PositionDateParser, DatePr
 	// -----------------------------------------------------------------------
 	@Override
 	public boolean equals(final Object obj) {
-		if (!(obj instanceof FastDateFormat other)) {
+		if (!(obj instanceof final FastDateFormat other)) {
 			return false;
 		}
 		// no need to check parser, as it has same invariants as printer
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/SimpleDateBasic.java b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/SimpleDateBasic.java
index bcbbcaf185..95eda8021e 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/date/format/SimpleDateBasic.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/date/format/SimpleDateBasic.java
@@ -75,7 +75,7 @@ public class SimpleDateBasic implements DateBasic, Serializable {
 	// ----------------------------------------------------------------------- Basics
 	@Override
 	public boolean equals(final Object obj) {
-		if (!(obj instanceof FastDatePrinter other)) {
+		if (!(obj instanceof final FastDatePrinter other)) {
 			return false;
 		}
 		return pattern.equals(other.pattern) && timeZone.equals(other.timeZone) && locale.equals(other.locale);
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/io/ManifestUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/io/ManifestUtil.java
index 9deb19c0a1..66464c4e59 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/io/ManifestUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/io/ManifestUtil.java
@@ -55,7 +55,7 @@ public class ManifestUtil {
 			throw new IORuntimeException(e);
 		}
 
-		if (connection instanceof JarURLConnection conn) {
+		if (connection instanceof final JarURLConnection conn) {
 			return getManifest(conn);
 		}
 		return null;
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/JarResource.java b/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/JarResource.java
index dffc937923..e17d46ec04 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/JarResource.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/JarResource.java
@@ -89,7 +89,7 @@ public class JarResource extends UrlResource {
 	 */
 	private JarFile doGetJarFile() throws IOException {
 		final URLConnection con = getUrl().openConnection();
-		if (con instanceof JarURLConnection jarCon) {
+		if (con instanceof final JarURLConnection jarCon) {
 			return jarCon.getJarFile();
 		} else {
 			final String urlFile = getUrl().getFile();
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/ResourceFinder.java b/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/ResourceFinder.java
index 43170d2b09..002a6c853b 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/ResourceFinder.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/io/resource/ResourceFinder.java
@@ -127,7 +127,7 @@ public class ResourceFinder {
 		String rootEntryPath;
 		final boolean closeJarFile;
 
-		if (conn instanceof JarURLConnection jarCon) {
+		if (conn instanceof final JarURLConnection jarCon) {
 			UrlUtil.useCachesIfNecessary(jarCon);
 			jarFile = jarCon.getJarFile();
 			final JarEntry jarEntry = jarCon.getJarEntry();
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/lang/Console.java b/hutool-core/src/main/java/cn/hutool/v7/core/lang/Console.java
index 450329238b..3754ff86a5 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/lang/Console.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/lang/Console.java
@@ -52,7 +52,7 @@ public class Console {
 	 * @param obj 要打印的对象
 	 */
 	public static void log(final Object obj) {
-		if (obj instanceof Throwable e) {
+		if (obj instanceof final Throwable e) {
 			log(e, e.getMessage());
 		} else {
 			log(TEMPLATE_VAR, obj);
@@ -219,7 +219,7 @@ public class Console {
 	 * @param obj 要打印的对象
 	 */
 	public static void error(final Object obj) {
-		if (obj instanceof Throwable e) {
+		if (obj instanceof final Throwable e) {
 			error(e, e.getMessage());
 		} else {
 			error(TEMPLATE_VAR, obj);
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/lang/Opt.java b/hutool-core/src/main/java/cn/hutool/v7/core/lang/Opt.java
index 1a4c86153b..0d1b9a545f 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/lang/Opt.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/lang/Opt.java
@@ -541,7 +541,7 @@ public class Opt<T> {
 			return true;
 		}
 
-		if (!(obj instanceof Opt<?> other)) {
+		if (!(obj instanceof final Opt<?> other)) {
 			return false;
 		}
 
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/lang/tuple/Triple.java b/hutool-core/src/main/java/cn/hutool/v7/core/lang/tuple/Triple.java
index 8cfc877b82..d355556d06 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/lang/tuple/Triple.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/lang/tuple/Triple.java
@@ -82,7 +82,7 @@ public class Triple<L, M, R> extends Pair<L, R> {
 		if (this == o) {
 			return true;
 		}
-		if (o instanceof Triple<?, ?, ?> triple) {
+		if (o instanceof final Triple<?, ?, ?> triple) {
 			return Objects.equals(getLeft(), triple.getLeft()) &&
 				Objects.equals(getMiddle(), triple.getMiddle()) &&
 				Objects.equals(getRight(), triple.getRight());
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/map/AbsEntry.java b/hutool-core/src/main/java/cn/hutool/v7/core/map/AbsEntry.java
index 89ac5dd04a..e3a08b078f 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/map/AbsEntry.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/map/AbsEntry.java
@@ -39,7 +39,7 @@ public abstract class AbsEntry<K, V> implements Map.Entry<K, V> {
 
 	@Override
 	public boolean equals(final Object object) {
-		if (object instanceof Map.Entry<?, ?> that) {
+		if (object instanceof final Map.Entry<?, ?> that) {
 			return ObjUtil.equals(this.getKey(), that.getKey())
 					&& ObjUtil.equals(this.getValue(), that.getValue());
 		}
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/map/multi/AbsTable.java b/hutool-core/src/main/java/cn/hutool/v7/core/map/multi/AbsTable.java
index 66fc5283a5..77f0772cdd 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/map/multi/AbsTable.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/map/multi/AbsTable.java
@@ -54,7 +54,7 @@ public abstract class AbsTable<R, C, V> implements Table<R, C, V> {
 	public boolean equals(final Object obj) {
 		if (obj == this) {
 			return true;
-		} else if (obj instanceof Table<?, ?, ?> that) {
+		} else if (obj instanceof final Table<?, ?, ?> that) {
 			return this.cellSet().equals(that.cellSet());
 		} else {
 			return false;
@@ -231,7 +231,7 @@ public abstract class AbsTable<R, C, V> implements Table<R, C, V> {
 			if (obj == this) {
 				return true;
 			}
-			if (obj instanceof Cell<?, ?, ?> other) {
+			if (obj instanceof final Cell<?, ?, ?> other) {
 				return ObjUtil.equals(rowKey, other.getRowKey())
 						&& ObjUtil.equals(columnKey, other.getColumnKey())
 						&& ObjUtil.equals(value, other.getValue());
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/math/ChineseNumberFormatter.java b/hutool-core/src/main/java/cn/hutool/v7/core/math/ChineseNumberFormatter.java
index aac2a4c597..e9a48b1e25 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/math/ChineseNumberFormatter.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/math/ChineseNumberFormatter.java
@@ -161,7 +161,7 @@ public class ChineseNumberFormatter {
 	public String format(final BigDecimal amount) {
 		final long longValue = amount.longValue();
 
-		String formatAmount;
+		final String formatAmount;
 		if (amount.scale() <= 0) {
 			formatAmount = format(longValue);
 		} else {
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/math/Fraction.java b/hutool-core/src/main/java/cn/hutool/v7/core/math/Fraction.java
index db7d4e7ffc..d8c8e841e6 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/math/Fraction.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/math/Fraction.java
@@ -618,7 +618,7 @@ public final class Fraction extends Number implements Comparable<Fraction> {
 		if (obj == this) {
 			return true;
 		}
-		if (!(obj instanceof Fraction other)) {
+		if (!(obj instanceof final Fraction other)) {
 			return false;
 		}
 		return getNumerator() == other.getNumerator() && getDenominator() == other.getDenominator();
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/net/url/UrlUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/net/url/UrlUtil.java
index 2058ee6d11..6d547d0b8a 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/net/url/UrlUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/net/url/UrlUtil.java
@@ -662,7 +662,7 @@ public class UrlUtil {
 			try {
 				conn = url.openConnection();
 				useCachesIfNecessary(conn);
-				if (conn instanceof HttpURLConnection httpCon) {
+				if (conn instanceof final HttpURLConnection httpCon) {
 					httpCon.setRequestMethod("HEAD");
 				}
 				return conn.getContentLengthLong();
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/reflect/method/MethodTypeUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/reflect/method/MethodTypeUtil.java
index 3ebdc15f92..54dc72eb87 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/reflect/method/MethodTypeUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/reflect/method/MethodTypeUtil.java
@@ -60,7 +60,7 @@ public class MethodTypeUtil {
 		if (null == declaringClass) {
 			declaringClass = executable.getDeclaringClass();
 		}
-		if (executable instanceof Method method) {
+		if (executable instanceof final Method method) {
 			return MethodType.methodType(method.getReturnType(), declaringClass, method.getParameterTypes());
 		} else {
 			final Constructor<?> constructor = (Constructor<?>) executable;
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/spi/JdkServiceLoaderUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/spi/JdkServiceLoaderUtil.java
index 3ded905ea9..11ee6f3f07 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/spi/JdkServiceLoaderUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/spi/JdkServiceLoaderUtil.java
@@ -57,7 +57,7 @@ public class JdkServiceLoaderUtil {
 					break;
 				}
 				instance = iterator.next();
-			} catch (ServiceConfigurationError | NoClassDefFoundError e) {
+			} catch (final ServiceConfigurationError | NoClassDefFoundError e) {
 				// 安全忽略当前实现，尝试下一个
 				continue;
 			}
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/text/CharSequenceUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/text/CharSequenceUtil.java
index a72f101c41..94fdad35a0 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/text/CharSequenceUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/text/CharSequenceUtil.java
@@ -2419,6 +2419,8 @@ public class CharSequenceUtil extends StrValidator {
 		if (str1 instanceof String && str2 instanceof String) {
 			return ((String) str1).regionMatches(ignoreCase, offset1, (String) str2, offset2, length);
 		}
+		// pr#4134@Github
+		// 当 CharSequence 为 StringBuilder 类时会发生拷贝，效率很低，而且复杂度会退化至 O(N^2)，这里直接手动匹配
 		if (offset1 < 0 || offset2 < 0 || length < 0) {
 			return false;
 		}
@@ -2426,18 +2428,9 @@ public class CharSequenceUtil extends StrValidator {
 			return false;
 		}
 		for (int i = 0; i < length; i++) {
-			final char c1 = str1.charAt(offset1 + i);
-			final char c2 = str2.charAt(offset2 + i);
-			if (c1 == c2) {
+			if (CharUtil.equals(str1.charAt(offset1 + i), str2.charAt(offset2 + i), ignoreCase)) {
 				continue;
 			}
-			if (ignoreCase) {
-				final char u1 = Character.toLowerCase(c1);
-				final char u2 = Character.toLowerCase(c2);
-				if (u1 == u2) {
-					continue;
-				}
-			}
 			return false;
 		}
 
@@ -3978,7 +3971,7 @@ public class CharSequenceUtil extends StrValidator {
 	 * @return StringBuilder对象
 	 * @since 5.8.42
 	 */
-	public static StringBuilder builder(Function<CharSequence, CharSequence> strEditor, final CharSequence... strs){
+	public static StringBuilder builder(final Function<CharSequence, CharSequence> strEditor, final CharSequence... strs){
 		final StringBuilder sb = new StringBuilder();
 		for (final CharSequence str : strs) {
 			sb.append(strEditor.apply( str));
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/text/StrJoiner.java b/hutool-core/src/main/java/cn/hutool/v7/core/text/StrJoiner.java
index ef564684ba..90d0fa418b 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/text/StrJoiner.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/text/StrJoiner.java
@@ -236,7 +236,7 @@ public class StrJoiner implements Appendable, Serializable {
 			append((Iterator<?>) obj);
 		} else if (obj instanceof Iterable) {
 			append(((Iterable<?>) obj).iterator());
-		}else if (obj instanceof Map.Entry<?, ?> entry) {
+		}else if (obj instanceof final Map.Entry<?, ?> entry) {
 			append(entry.getKey()).append(entry.getValue());
 		} else {
 			append(ConvertUtil.toStr(obj));
@@ -448,7 +448,7 @@ public class StrJoiner implements Appendable, Serializable {
 	 * @param appendable {@link Appendable}
 	 */
 	private void checkHasContent(final Appendable appendable) {
-		if (appendable instanceof CharSequence charSequence) {
+		if (appendable instanceof final CharSequence charSequence) {
 			if (!charSequence.isEmpty() && StrUtil.endWith(charSequence, delimiter)) {
 				this.hasContent = true;
 			}
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/text/finder/StrFinder.java b/hutool-core/src/main/java/cn/hutool/v7/core/text/finder/StrFinder.java
index f19b3a17df..fe2ac187e4 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/text/finder/StrFinder.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/text/finder/StrFinder.java
@@ -17,7 +17,6 @@
 package cn.hutool.v7.core.text.finder;
 
 import cn.hutool.v7.core.lang.Assert;
-import cn.hutool.v7.core.text.CharSequenceUtil;
 
 import java.io.Serial;
 import java.util.HashMap;
@@ -69,12 +68,13 @@ public class StrFinder extends TextFinder {
 		final int subLen = strToFind.length();
 		final int textLen = text.length();
 
-		// 基于Sunday算法实现高效子串查询
+		// pr#4134@github
+		// 基于Sunday算法实现高效子串查询，理想情况为O(N / M)，最差情况(大量重复元素)会退化至O(M * N)，一般情况下优于 KMP算法，任何情况下都优于原来的暴力算法
 		if (negative) {
 			if (this.reverseOffsetMap == null) {
 				this.reverseOffsetMap = buildReverseOffsetMap(strToFind, caseInsensitive);
 			}
-			int maxIndex = textLen - subLen;
+			final int maxIndex = textLen - subLen;
 			if (from > maxIndex) {
 				from = maxIndex;
 			}
@@ -86,8 +86,8 @@ public class StrFinder extends TextFinder {
 				if (i - 1 < 0) {
 					break;
 				}
-				char preChar = text.charAt(i - 1);
-				int jump = reverseOffsetMap.getOrDefault(
+				final char preChar = text.charAt(i - 1);
+				final int jump = reverseOffsetMap.getOrDefault(
 					caseInsensitive ? Character.toLowerCase(preChar) : preChar,
 					subLen + 1
 				);
@@ -100,7 +100,7 @@ public class StrFinder extends TextFinder {
 			if (from < 0) {
 				from = 0;
 			}
-			int endLimit = textLen - subLen;
+			final int endLimit = textLen - subLen;
 			int i = from;
 			while (i <= endLimit) {
 				if (isSubEquals(text, i, strToFind, 0, subLen, caseInsensitive)) {
@@ -109,8 +109,8 @@ public class StrFinder extends TextFinder {
 				if (i + subLen >= textLen) {
 					break;
 				}
-				char nextChar = text.charAt(i + subLen);
-				int jump = forwardOffsetMap.getOrDefault(
+				final char nextChar = text.charAt(i + subLen);
+				final int jump = forwardOffsetMap.getOrDefault(
 					caseInsensitive ? Character.toLowerCase(nextChar) : nextChar,
 					subLen + 1
 				);
@@ -132,13 +132,13 @@ public class StrFinder extends TextFinder {
 	/**
 	 * 构建正向偏移表
 	 */
-	private static Map<Character, Integer> buildForwardOffsetMap(CharSequence pattern, boolean caseInsensitive) {
-		int m = pattern.length();
-		Map<Character, Integer> map = new HashMap<>(Math.min(m, 128));
+	private static Map<Character, Integer> buildForwardOffsetMap(final CharSequence pattern, final boolean caseInsensitive) {
+		final int m = pattern.length();
+		final Map<Character, Integer> map = new HashMap<>(Math.min(m, 128));
 
 		for (int i = 0; i < m; i++) {
-			char c = pattern.charAt(i);
-			int jump = m - i;
+			final char c = pattern.charAt(i);
+			final int jump = m - i;
 
 			if (caseInsensitive) {
 				map.put(Character.toLowerCase(c), jump);
@@ -152,13 +152,13 @@ public class StrFinder extends TextFinder {
 	/**
 	 * 构建反向偏移表
 	 */
-	private static Map<Character, Integer> buildReverseOffsetMap(CharSequence pattern, boolean caseInsensitive) {
-		int m = pattern.length();
-		Map<Character, Integer> map = new HashMap<>(Math.min(m, 128));
+	private static Map<Character, Integer> buildReverseOffsetMap(final CharSequence pattern, final boolean caseInsensitive) {
+		final int m = pattern.length();
+		final Map<Character, Integer> map = new HashMap<>(Math.min(m, 128));
 
 		for (int i = m - 1; i >= 0; i--) {
-			char c = pattern.charAt(i);
-			int jump = i + 1;
+			final char c = pattern.charAt(i);
+			final int jump = i + 1;
 
 			if (caseInsensitive) {
 				map.put(Character.toLowerCase(c), jump);
diff --git a/hutool-core/src/main/java/cn/hutool/v7/core/thread/ThreadUtil.java b/hutool-core/src/main/java/cn/hutool/v7/core/thread/ThreadUtil.java
index a99ef8077e..624e0242ad 100644
--- a/hutool-core/src/main/java/cn/hutool/v7/core/thread/ThreadUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/v7/core/thread/ThreadUtil.java
@@ -795,9 +795,9 @@ public class ThreadUtil {
 	 * @since 4.5.8
 	 */
 	public static ConcurrencyTester concurrencyTest(final int threadSize, final Runnable runnable) {
-		try (ConcurrencyTester tester = new ConcurrencyTester(threadSize)) {
+		try (final ConcurrencyTester tester = new ConcurrencyTester(threadSize)) {
 			return tester.test(runnable);
-		} catch (IOException e) {
+		} catch (final IOException e) {
 			throw new IORuntimeException(e);
 		}
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/bean/BeanUtilTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/bean/BeanUtilTest.java
index 7f9a0eaeb3..e365b6c2a9 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/bean/BeanUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/bean/BeanUtilTest.java
@@ -1022,20 +1022,20 @@ public class BeanUtilTest {
 
 	@Test
 	void checkBean_withNullBean_shouldReturnTrue() {
-		Predicate<Field> predicate = field -> true;
+		final Predicate<Field> predicate = field -> true;
 		assertTrue(BeanUtil.checkBean(null, predicate));
 	}
 
 	@Test
 	void checkBean_withNoMatchingFields_shouldReturnFalse() {
-		Person bean = new Person();
-		Predicate<Field> predicate = field -> false;
+		final Person bean = new Person();
+		final Predicate<Field> predicate = field -> false;
 		assertFalse(BeanUtil.checkBean(bean, predicate));
 	}
 
 	@Test
 	void checkBean_withMatchingField_shouldReturnTrue() {
-		Person bean = new Person();
+		final Person bean = new Person();
 		Predicate<Field> predicate = field -> "name".equals(field.getName());
 		assertTrue(BeanUtil.checkBean(bean, predicate));
 
@@ -1046,12 +1046,12 @@ public class BeanUtilTest {
 	@Test
 	void findEditor_shouldReturnEditorForRegisteredType() {
 		// Given
-		Class<?> type = Integer.class;
+		final Class<?> type = Integer.class;
 		// Register editor for Integer if not already registered (though usually it's pre-registered)
-		PropertyEditor expectedEditor = PropertyEditorManager.findEditor(type);
+		final PropertyEditor expectedEditor = PropertyEditorManager.findEditor(type);
 
 		// When
-		PropertyEditor actualEditor = BeanUtil.findEditor(type);
+		final PropertyEditor actualEditor = BeanUtil.findEditor(type);
 
 		// Then
 		assertNotNull(actualEditor);
@@ -1062,10 +1062,10 @@ public class BeanUtilTest {
 	void findEditor_shouldReturnNullForUnregisteredType() {
 		// Given
 		class CustomUnregisteredType {}
-		Class<?> type = CustomUnregisteredType.class;
+		final Class<?> type = CustomUnregisteredType.class;
 
 		// When
-		PropertyEditor editor = BeanUtil.findEditor(type);
+		final PropertyEditor editor = BeanUtil.findEditor(type);
 
 		// Then
 		assertNull(editor);
@@ -1074,10 +1074,10 @@ public class BeanUtilTest {
 	@Test
 	void findEditor_shouldHandlePrimitiveTypes() {
 		// Given
-		Class<?> type = int.class;
+		final Class<?> type = int.class;
 
 		// When
-		PropertyEditor editor = BeanUtil.findEditor(type);
+		final PropertyEditor editor = BeanUtil.findEditor(type);
 
 		// Then
 		assertNotNull(editor);
@@ -1085,7 +1085,7 @@ public class BeanUtilTest {
 
 	@Test
 	void descForEach_shouldProcessAllProperties() {
-		List<String> processedProperties = new ArrayList<>();
+		final List<String> processedProperties = new ArrayList<>();
 
 		// 执行
 		BeanUtil.descForEach(Person.class, propDesc -> processedProperties.add(propDesc.getFieldName()));
@@ -1099,7 +1099,7 @@ public class BeanUtilTest {
 
 	@Test
 	public void testIsMatchName_SimpleMatch() {
-		String testObj = "test";
+		final String testObj = "test";
 		assertTrue(BeanUtil.isMatchName(testObj, "String", true));
 		assertTrue(BeanUtil.isMatchName(testObj, "string", true));
 
@@ -1110,7 +1110,7 @@ public class BeanUtilTest {
 
 	@Test
 	public void testIsMatchName_FullMatch() {
-		Integer testObj = 123;
+		final Integer testObj = 123;
 		assertTrue(BeanUtil.isMatchName(testObj, "java.lang.Integer", false));
 		assertFalse(BeanUtil.isMatchName(testObj, "Integer", false));
 
@@ -1120,7 +1120,7 @@ public class BeanUtilTest {
 
 	@Test
 	void testGetPropertyDescriptor_ExistingField() {
-		PropertyDescriptor pd = BeanUtil.getPropertyDescriptor(Person.class, "name");
+		final PropertyDescriptor pd = BeanUtil.getPropertyDescriptor(Person.class, "name");
 		assertNotNull(pd);
 		assertEquals("name", pd.getName());
 		assertEquals(String.class, pd.getPropertyType());
@@ -1134,7 +1134,7 @@ public class BeanUtilTest {
 
 	@Test
 	void testBeanToMap_IgnoreNullValue() {
-		Person person = new Person();
+		final Person person = new Person();
 		person.setName(null);
 		person.setAge(25);
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/bean/DynaBeanTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/bean/DynaBeanTest.java
index 290d441e1d..2a1c83a1e8 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/bean/DynaBeanTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/bean/DynaBeanTest.java
@@ -36,8 +36,8 @@ public class DynaBeanTest {
 
 	@Test
 	void createDynaBean_withPlainObject_shouldReturnDynaBean() {
-		BeanUtilTest.Person bean = new BeanUtilTest.Person();
-		DynaBean dynaBean = BeanUtil.createDynaBean(bean);
+		final BeanUtilTest.Person bean = new BeanUtilTest.Person();
+		final DynaBean dynaBean = BeanUtil.createDynaBean(bean);
 
 		assertNotNull(dynaBean);
 		assertEquals(bean, dynaBean.getBean());
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/cache/SimpleCacheTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/cache/SimpleCacheTest.java
index 6ce0476229..2ba837f809 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/cache/SimpleCacheTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/cache/SimpleCacheTest.java
@@ -102,7 +102,7 @@ public class SimpleCacheTest {
 		cache.get("key5", ()->"value5");
 
 		String key = null;
-		for (Map.Entry<String, String> entry : cache) {
+		for (final Map.Entry<String, String> entry : cache) {
 			if ("value3".equals(entry.getValue())) {
 				key = entry.getKey();
 				break;
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/CollUtilTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/CollUtilTest.java
index 3e662b98b3..e522df491e 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/CollUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/CollUtilTest.java
@@ -996,25 +996,25 @@ public class CollUtilTest {
 	@Test
 	public void zipTest2() {
 		// 1. 正常情况测试
-		List<String> list1 = ListUtil.of("a", "b", "c");
-		List<Integer> list2 = ListUtil.of(1, 2, 3);
-		List<String> result = CollUtil.zip(list1, list2, (s, i) -> s + i);
+		final List<String> list1 = ListUtil.of("a", "b", "c");
+		final List<Integer> list2 = ListUtil.of(1, 2, 3);
+		final List<String> result = CollUtil.zip(list1, list2, (s, i) -> s + i);
 		assertEquals(ListUtil.of("a1", "b2", "c3"), result);
 
 		// 2. 空集合测试
-		List<String> emptyList = ListUtil.of();
-		List<String> emptyResult = CollUtil.zip(emptyList, list2, (s, i) -> s + i);
+		final List<String> emptyList = ListUtil.of();
+		final List<String> emptyResult = CollUtil.zip(emptyList, list2, (s, i) -> s + i);
 		assertTrue(emptyResult.isEmpty());
 
 		// 3. 不同大小集合测试(以较小集合为准)
-		List<Integer> longerList = ListUtil.of(1, 2, 3, 4, 5);
-		List<String> sizedResult = CollUtil.zip(list1, longerList, (s, i) -> s + i);
+		final List<Integer> longerList = ListUtil.of(1, 2, 3, 4, 5);
+		final List<String> sizedResult = CollUtil.zip(list1, longerList, (s, i) -> s + i);
 		assertEquals(3, sizedResult.size());
 		assertEquals("a1", sizedResult.get(0));
 
 		// 4. 自定义zipper函数测试
-		List<Double> list3 = ListUtil.of(1.1, 2.2, 3.3);
-		List<String> customResult = CollUtil.zip(list2, list3, (i, d) -> String.format("%d-%.1f", i, d));
+		final List<Double> list3 = ListUtil.of(1.1, 2.2, 3.3);
+		final List<String> customResult = CollUtil.zip(list2, list3, (i, d) -> String.format("%d-%.1f", i, d));
 		assertEquals(ListUtil.of("1-1.1", "2-2.2", "3-3.3"), customResult);
 	}
 
@@ -1166,11 +1166,11 @@ public class CollUtilTest {
 
 	@Test
 	void getFirstTestWithPredicateTest(){
-		Animal dog = new Animal("dog", 2);
-		Animal cat = new Animal("cat", 3);
-		Animal bear = new Animal("bear", 4);
+		final Animal dog = new Animal("dog", 2);
+		final Animal cat = new Animal("cat", 3);
+		final Animal bear = new Animal("bear", 4);
 
-		List<Animal> list = new ArrayList<>();
+		final List<Animal> list = new ArrayList<>();
 		list.add(dog);
 		list.add(cat);
 		list.add(bear);
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/CopiedIterTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/CopiedIterTest.java
index 033f860298..fd9b7002d2 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/CopiedIterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/CopiedIterTest.java
@@ -31,8 +31,8 @@ public class CopiedIterTest {
 
 	@Test
 	public void copyOf() {
-		List<Integer> list = Arrays.asList(1, 2, 3);
-		Iterator<Integer> iter = list.iterator();
+		final List<Integer> list = Arrays.asList(1, 2, 3);
+		final Iterator<Integer> iter = list.iterator();
 		Assertions.assertEquals((Integer)1, iter.next());
 
 		Assertions.assertEquals((Integer)2, CopiedIter.copyOf(iter).next());
@@ -46,8 +46,8 @@ public class CopiedIterTest {
 
 	@Test
 	public void next() {
-		List<Integer> list = Arrays.asList(1, 2, 3);
-		Iterator<Integer> iter = CopiedIter.copyOf(list.iterator());
+		final List<Integer> list = Arrays.asList(1, 2, 3);
+		final Iterator<Integer> iter = CopiedIter.copyOf(list.iterator());
 		Assertions.assertEquals((Integer)1, iter.next());
 		Assertions.assertEquals((Integer)2, iter.next());
 		Assertions.assertEquals((Integer)3, iter.next());
@@ -55,8 +55,8 @@ public class CopiedIterTest {
 
 	@Test
 	public void remove() {
-		List<Integer> list = Arrays.asList(1, 2, 3);
-		Iterator<Integer> iter = CopiedIter.copyOf(list.iterator());
+		final List<Integer> list = Arrays.asList(1, 2, 3);
+		final Iterator<Integer> iter = CopiedIter.copyOf(list.iterator());
 		Assertions.assertThrows(UnsupportedOperationException.class, iter::remove);
 	}
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/EnumerationIterTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/EnumerationIterTest.java
index e956e85940..171ee5c968 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/EnumerationIterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/EnumerationIterTest.java
@@ -30,16 +30,16 @@ public class EnumerationIterTest {
 
 	@Test
 	public void testHasNext() {
-		Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
-		EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
+		final Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
+		final EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
 		Assertions.assertTrue(iter.hasNext());
 		Assertions.assertFalse(new EnumerationIter<>(new IteratorEnumeration<>(Collections.emptyIterator())).hasNext());
 	}
 
 	@Test
 	public void testNext() {
-		Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
-		EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
+		final Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
+		final EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
 		Assertions.assertEquals((Integer)1, iter.next());
 		Assertions.assertEquals((Integer)2, iter.next());
 		Assertions.assertEquals((Integer)3, iter.next());
@@ -47,15 +47,15 @@ public class EnumerationIterTest {
 
 	@Test
 	public void testRemove() {
-		Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
-		EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
+		final Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
+		final EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
 		Assertions.assertThrows(UnsupportedOperationException.class, iter::remove);
 	}
 
 	@Test
 	public void testIterator() {
-		Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
-		EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
+		final Enumeration<Integer> enumeration = new IteratorEnumeration<>(Arrays.asList(1, 2, 3).iterator());
+		final EnumerationIter<Integer> iter = new EnumerationIter<>(enumeration);
 		Assertions.assertSame(iter, iter.iterator());
 	}
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/FilterIterTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/FilterIterTest.java
index 0ab0b2edab..9888fd5bcf 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/FilterIterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/FilterIterTest.java
@@ -51,27 +51,27 @@ public class FilterIterTest {
     @Test
     public void next() {
 		// 只保留奇数
-		Iterator<Integer> iter = new FilterIter<>(Arrays.asList(1, 2, 3).iterator(), i -> (i & 1) == 1);
+		final Iterator<Integer> iter = new FilterIter<>(Arrays.asList(1, 2, 3).iterator(), i -> (i & 1) == 1);
 		Assertions.assertEquals((Integer)1, iter.next());
 		Assertions.assertEquals((Integer)3, iter.next());
     }
 
     @Test
     public void remove() {
-		Iterator<Integer> iter = new FilterIter<>(Collections.emptyIterator(), i -> true);
+		final Iterator<Integer> iter = new FilterIter<>(Collections.emptyIterator(), i -> true);
 		Assertions.assertThrows(IllegalStateException.class, iter::remove);
     }
 
     @Test
     public void getIterator() {
-		FilterIter<Integer> iter = new FilterIter<>(Collections.emptyIterator(), i -> true);
+		final FilterIter<Integer> iter = new FilterIter<>(Collections.emptyIterator(), i -> true);
 		Assertions.assertSame(Collections.emptyIterator(), iter.getIterator());
     }
 
     @Test
     public void getFilter() {
-		Predicate<Integer> predicate = i -> true;
-		FilterIter<Integer> iter = new FilterIter<>(Collections.emptyIterator(), predicate);
+		final Predicate<Integer> predicate = i -> true;
+		final FilterIter<Integer> iter = new FilterIter<>(Collections.emptyIterator(), predicate);
 		Assertions.assertSame(predicate, iter.getFilter());
     }
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/IteratorEnumerationTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/IteratorEnumerationTest.java
index 0c08695830..1b79db5841 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/IteratorEnumerationTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/IteratorEnumerationTest.java
@@ -30,16 +30,16 @@ public class IteratorEnumerationTest {
 
 	@Test
 	public void testHasMoreElements() {
-		List<Integer> list = Arrays.asList(1, 2, 3);
-		IteratorEnumeration<Integer> enumeration = new IteratorEnumeration<>(list.iterator());
+		final List<Integer> list = Arrays.asList(1, 2, 3);
+		final IteratorEnumeration<Integer> enumeration = new IteratorEnumeration<>(list.iterator());
 		Assertions.assertTrue(enumeration.hasMoreElements());
 		Assertions.assertFalse(new IteratorEnumeration<>(Collections.emptyIterator()).hasMoreElements());
 	}
 
 	@Test
 	public void testNextElement() {
-		List<Integer> list = Arrays.asList(1, 2, 3);
-		IteratorEnumeration<Integer> enumeration = new IteratorEnumeration<>(list.iterator());
+		final List<Integer> list = Arrays.asList(1, 2, 3);
+		final IteratorEnumeration<Integer> enumeration = new IteratorEnumeration<>(list.iterator());
 		Assertions.assertEquals((Integer)1, enumeration.nextElement());
 		Assertions.assertEquals((Integer)2, enumeration.nextElement());
 		Assertions.assertEquals((Integer)3, enumeration.nextElement());
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/PartitionIterTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/PartitionIterTest.java
index 97aea4ee9c..1065644310 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/PartitionIterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/PartitionIterTest.java
@@ -30,16 +30,16 @@ public class PartitionIterTest {
 
 	@Test
 	public void testHasNext() {
-		Iterator<Integer> iter = Arrays.asList(1, 2, 3, 4).iterator();
-		PartitionIter<Integer> partitionIter = new PartitionIter<>(iter, 2);
+		final Iterator<Integer> iter = Arrays.asList(1, 2, 3, 4).iterator();
+		final PartitionIter<Integer> partitionIter = new PartitionIter<>(iter, 2);
 		Assertions.assertTrue(partitionIter.hasNext());
 		Assertions.assertFalse(new PartitionIter<>(Collections.emptyIterator(), 1).hasNext());
 	}
 
 	@Test
 	public void testNext() {
-		Iterator<Integer> iter = Arrays.asList(1, 2, 3, 4).iterator();
-		PartitionIter<Integer> partitionIter = new PartitionIter<>(iter, 2);
+		final Iterator<Integer> iter = Arrays.asList(1, 2, 3, 4).iterator();
+		final PartitionIter<Integer> partitionIter = new PartitionIter<>(iter, 2);
 		Assertions.assertEquals(Arrays.asList(1, 2), partitionIter.next());
 		Assertions.assertEquals(Arrays.asList(3, 4), partitionIter.next());
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/TransIterTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/TransIterTest.java
index 69c6e9d0c3..59cde4bd55 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/TransIterTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/collection/iter/TransIterTest.java
@@ -32,14 +32,14 @@ public class TransIterTest {
 
 	@Test
 	public void testHasNext() {
-		TransIter<Integer, String> iter = new TransIter<>(Arrays.asList(1, 2, 3).iterator(), String::valueOf);
+		final TransIter<Integer, String> iter = new TransIter<>(Arrays.asList(1, 2, 3).iterator(), String::valueOf);
 		Assertions.assertTrue(iter.hasNext());
 		Assertions.assertFalse(new TransIter<>(Collections.emptyIterator(), Function.identity()).hasNext());
 	}
 
 	@Test
 	public void testNext() {
-		TransIter<Integer, String> iter = new TransIter<>(Arrays.asList(1, 2, 3).iterator(), String::valueOf);
+		final TransIter<Integer, String> iter = new TransIter<>(Arrays.asList(1, 2, 3).iterator(), String::valueOf);
 		Assertions.assertEquals("1", iter.next());
 		Assertions.assertEquals("2", iter.next());
 		Assertions.assertEquals("3", iter.next());
@@ -47,8 +47,8 @@ public class TransIterTest {
 
 	@Test
 	public void testRemove() {
-		List<Integer> list = ListUtil.of(1, 2, 3);
-		TransIter<Integer, String> iter = new TransIter<>(list.iterator(), String::valueOf);
+		final List<Integer> list = ListUtil.of(1, 2, 3);
+		final TransIter<Integer, String> iter = new TransIter<>(list.iterator(), String::valueOf);
 		iter.next();
 		iter.remove();
 		iter.next();
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/date/chinese/ShiChenTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/date/chinese/ShiChenTest.java
index 9bced41423..7b6b879299 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/date/chinese/ShiChenTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/date/chinese/ShiChenTest.java
@@ -39,8 +39,8 @@ public class ShiChenTest {
 		assertEquals(1, ShiChen.toModernTime("子正").between(DateUnit.HOUR));
 
 		// 测试所有时辰
-		String[] times = {"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};
-		for (String time : times) {
+		final String[] times = {"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};
+		for (final String time : times) {
 			assertEquals(2, ShiChen.toModernTime(time + "时").between(DateUnit.HOUR));
 			assertEquals(1, ShiChen.toModernTime(time + "初").between(DateUnit.HOUR));
 			assertEquals(1, ShiChen.toModernTime(time + "正").between(DateUnit.HOUR));
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/func/PredicateUtilTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/func/PredicateUtilTest.java
index 9aedf0e812..9d68cc5828 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/func/PredicateUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/func/PredicateUtilTest.java
@@ -41,7 +41,7 @@ public class PredicateUtilTest {
 
 	@Test
 	public void andTest() {
-		boolean condition = Stream.of(1, 3, 5)
+		final boolean condition = Stream.of(1, 3, 5)
 				.allMatch(
 						PredicateUtil.and(
 								Objects::nonNull,
@@ -54,7 +54,7 @@ public class PredicateUtilTest {
 
 	@Test
 	public void orTest() {
-		boolean condition = Stream.of(1, 3, 5)
+		final boolean condition = Stream.of(1, 3, 5)
 				.anyMatch(
 						PredicateUtil.or(
 								Objects::isNull,
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableBoolTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableBoolTest.java
index b5c927296b..6ee9c480eb 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableBoolTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableBoolTest.java
@@ -50,7 +50,7 @@ public class MutableBoolTest extends BaseMutableTest<Boolean, MutableBool> {
 	 * @return 值
 	 */
 	@Override
-	MutableBool getMutable(Boolean value) {
+	MutableBool getMutable(final Boolean value) {
 		return new MutableBool(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableByteTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableByteTest.java
index e90e6f3c70..9634dbbe74 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableByteTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableByteTest.java
@@ -48,7 +48,7 @@ public class MutableByteTest extends BaseMutableTest<Number, MutableByte> {
 	 * @return 值
 	 */
 	@Override
-	MutableByte getMutable(Number value) {
+	MutableByte getMutable(final Number value) {
 		return new MutableByte(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableDoubleTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableDoubleTest.java
index 1d48d0bf56..889b690621 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableDoubleTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableDoubleTest.java
@@ -48,7 +48,7 @@ public class MutableDoubleTest extends BaseMutableTest<Number, MutableDouble> {
 	 * @return 值
 	 */
 	@Override
-	MutableDouble getMutable(Number value) {
+	MutableDouble getMutable(final Number value) {
 		return new MutableDouble(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableEntryTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableEntryTest.java
index e4774ef839..8fee9da206 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableEntryTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableEntryTest.java
@@ -55,7 +55,7 @@ public class MutableEntryTest extends BaseMutableTest<Map.Entry<String, String>,
 	 * @return 值
 	 */
 	@Override
-	MutableEntry<String, String> getMutable(Map.Entry<String, String> value) {
+	MutableEntry<String, String> getMutable(final Map.Entry<String, String> value) {
 		return new MutableEntry<>(value.getKey(), value.getValue());
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableFloatTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableFloatTest.java
index ad10ef2a6f..a68396bad2 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableFloatTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableFloatTest.java
@@ -47,7 +47,7 @@ public class MutableFloatTest extends BaseMutableTest<Number, MutableFloat> {
 	 * @return 值
 	 */
 	@Override
-	MutableFloat getMutable(Number value) {
+	MutableFloat getMutable(final Number value) {
 		return new MutableFloat(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableIntTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableIntTest.java
index 9ee583a0a1..557d482be2 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableIntTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableIntTest.java
@@ -47,7 +47,7 @@ public class MutableIntTest extends BaseMutableTest<Number, MutableInt> {
 	 * @return 值
 	 */
 	@Override
-	MutableInt getMutable(Number value) {
+	MutableInt getMutable(final Number value) {
 		return new MutableInt(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableLongTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableLongTest.java
index 00c04c7785..0defe07246 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableLongTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableLongTest.java
@@ -47,7 +47,7 @@ public class MutableLongTest extends BaseMutableTest<Number, MutableLong> {
 	 * @return 值
 	 */
 	@Override
-	MutableLong getMutable(Number value) {
+	MutableLong getMutable(final Number value) {
 		return new MutableLong(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableObjTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableObjTest.java
index 691d9c171e..0daa088c99 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableObjTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableObjTest.java
@@ -50,7 +50,7 @@ class MutableObjTest extends BaseMutableTest<String, MutableObj<String>> {
 	 * @return 值
 	 */
 	@Override
-	MutableObj<String> getMutable(String value) {
+	MutableObj<String> getMutable(final String value) {
 		return new MutableObj<>(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableShortTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableShortTest.java
index b61b4336ce..0f4b2e5b44 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableShortTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableShortTest.java
@@ -47,7 +47,7 @@ public class MutableShortTest extends BaseMutableTest<Number, MutableShort> {
 	 * @return 值
 	 */
 	@Override
-	MutableShort getMutable(Number value) {
+	MutableShort getMutable(final Number value) {
 		return new MutableShort(value);
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableTripleTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableTripleTest.java
index fdb69ec231..c5bb48527b 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableTripleTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/mutable/MutableTripleTest.java
@@ -51,7 +51,7 @@ public class MutableTripleTest extends BaseMutableTest<MutableTriple<String, Str
 	 * @return 值
 	 */
 	@Override
-	MutableTriple<String, String, String> getMutable(MutableTriple<String, String, String> value) {
+	MutableTriple<String, String, String> getMutable(final MutableTriple<String, String, String> value) {
 		return new MutableTriple<>(value.getLeft(), value.getMiddle(), value.getRight());
 	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/BoundTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/BoundTest.java
index 2694fafae6..5ba70e2138 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/BoundTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/BoundTest.java
@@ -30,9 +30,9 @@ public class BoundTest {
 	@Test
 	@DisplayName("测试相邻区间合并")
 	void testUnionIfIntersectedWithAdjacentRanges() {
-		BoundedRange<Integer> range1 = BoundedRange.close(1, 3);
-		BoundedRange<Integer> range2 = BoundedRange.close(3, 5);
-		BoundedRange<Integer> result = BoundedRangeOperation.unionIfIntersected(range1, range2);
+		final BoundedRange<Integer> range1 = BoundedRange.close(1, 3);
+		final BoundedRange<Integer> range2 = BoundedRange.close(3, 5);
+		final BoundedRange<Integer> result = BoundedRangeOperation.unionIfIntersected(range1, range2);
 
 		assertEquals(Bound.atLeast(1), result.getLowerBound());
 		assertEquals(Bound.atMost(5), result.getUpperBound());
@@ -40,8 +40,8 @@ public class BoundTest {
 
 	@Test
 	void isDisjointTest(){
-		BoundedRange<Integer> range1 = BoundedRange.close(1, 3);
-		BoundedRange<Integer> range2 = BoundedRange.close(3, 5);
+		final BoundedRange<Integer> range1 = BoundedRange.close(1, 3);
+		final BoundedRange<Integer> range2 = BoundedRange.close(3, 5);
 		// 点重合，相交
 		assertFalse(range1.isDisjoint(range2));
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/RangeTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/RangeTest.java
index be8f2e37a2..5eeeb66a84 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/RangeTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/range/RangeTest.java
@@ -43,9 +43,9 @@ public class RangeTest {
 	@Test
 	@DisplayName("测试不包含起始元素的迭代")
 	void testIteratorWithoutIncludeStart() {
-		Range<Integer> range = new Range<>(1, 5, (current, end, index) -> current + 1, false, true);
-		List<Integer> elements = new ArrayList<>();
-		for (Integer i : range) {
+		final Range<Integer> range = new Range<>(1, 5, (current, end, index) -> current + 1, false, true);
+		final List<Integer> elements = new ArrayList<>();
+		for (final Integer i : range) {
 			elements.add(i);
 		}
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/ref/PhantomObjTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/ref/PhantomObjTest.java
index 6e385273b5..6482d3fb3d 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/ref/PhantomObjTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/ref/PhantomObjTest.java
@@ -24,8 +24,8 @@ class PhantomObjTest {
 	@Test
 	@DisplayName("测试 equals 方法与不同引用对象比较")
     void testEqualsWithDifferentReferent() {
-        String differentObject = "different";
-        PhantomObj<String> anotherPhantomObj = new PhantomObj<>(differentObject, queue);
+        final String differentObject = "different";
+        final PhantomObj<String> anotherPhantomObj = new PhantomObj<>(differentObject, queue);
         assertFalse(phantomObj.equals(anotherPhantomObj));
     }
 }
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/lang/selector/IncrementSelectorTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/lang/selector/IncrementSelectorTest.java
index 342318f930..7c10af5293 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/lang/selector/IncrementSelectorTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/lang/selector/IncrementSelectorTest.java
@@ -28,7 +28,7 @@ public class IncrementSelectorTest {
 	 */
 	@Test
 	void testSelectNormalCycle() {
-		IncrementSelector<String> selector = new IncrementSelector<>(List.of("A", "B", "C"));
+		final IncrementSelector<String> selector = new IncrementSelector<>(List.of("A", "B", "C"));
 
 		assertEquals("A", selector.select()); // 第一次调用应返回第一个元素
 		assertEquals("B", selector.select()); // 第二次调用应返回第二个元素
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/map/CollectionValueMapTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/map/CollectionValueMapTest.java
index 12ac734bfc..8802de4467 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/map/CollectionValueMapTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/map/CollectionValueMapTest.java
@@ -28,16 +28,16 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void putTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertNull(map.put(1, Arrays.asList("a", "b")));
-		Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
+		final Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
 		Assertions.assertEquals(Arrays.asList("a", "b"), collection);
 	}
 
 	@Test
 	public void putAllTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		source.put(1, Arrays.asList("a", "b", "c"));
 		map.putAll(source);
 		Assertions.assertEquals(1, map.size());
@@ -46,7 +46,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void putValueTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertTrue(map.putValue(1, "a"));
 		Assertions.assertTrue(map.putValue(1, "b"));
 		Assertions.assertTrue(map.putValue(1, "c"));
@@ -56,12 +56,12 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void putAllValueTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertTrue(map.putAllValues(1, Arrays.asList("a", "b", "c")));
 		Assertions.assertEquals(1, map.size());
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.get(1));
 
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		Assertions.assertTrue(map.putValue(1, "e"));
 		Assertions.assertTrue(map.putValue(1, "f"));
 		map.putAllValues(source);
@@ -70,14 +70,14 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void putValuesTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.get(1));
 	}
 
 	@Test
 	public void testFilterAllValues() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -92,7 +92,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void testReplaceAllValues() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -107,7 +107,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void removeValueTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValue(1, "d"));
 		Assertions.assertTrue(map.removeValue(1, "c"));
@@ -116,7 +116,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void removeAllValuesTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeAllValues(1, Arrays.asList("e", "f")));
 		Assertions.assertTrue(map.removeAllValues(1, Arrays.asList("b", "c")));
@@ -125,7 +125,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void removeValuesTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValues(1, "e", "f"));
 		Assertions.assertTrue(map.removeValues(1, "b", "c"));
@@ -134,7 +134,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void getValuesTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(Collections.emptyList(), map.getValues(2));
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.getValues(1));
@@ -142,7 +142,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void sizeTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(0, map.size(2));
 		Assertions.assertEquals(3, map.size(1));
@@ -150,10 +150,10 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void allForEachTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>();
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>();
 		map.putValues(1, "a", "b", "c");
-		List<Integer> keys = new ArrayList<>();
-		List<String> values = new ArrayList<>();
+		final List<Integer> keys = new ArrayList<>();
+		final List<String> values = new ArrayList<>();
 		map.allForEach((k, v) -> {
 			keys.add(k);
 			values.add(v);
@@ -164,7 +164,7 @@ public class CollectionValueMapTest {
 
 	@Test
 	public void allValuesTest() {
-		MultiValueMap<Integer, String> map = new CollectionValueMap<>(new LinkedHashMap<>());
+		final MultiValueMap<Integer, String> map = new CollectionValueMap<>(new LinkedHashMap<>());
 		map.putAllValues(1, Arrays.asList("a", "b", "c"));
 		map.putAllValues(2, Arrays.asList("d", "e"));
 		Assertions.assertEquals(
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/map/ListValueMapTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/map/ListValueMapTest.java
index c3e9b05425..62009df501 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/map/ListValueMapTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/map/ListValueMapTest.java
@@ -28,16 +28,16 @@ public class ListValueMapTest {
 
 	@Test
 	public void putTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertNull(map.put(1, Arrays.asList("a", "b")));
-		Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
+		final Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
 		Assertions.assertEquals(Arrays.asList("a", "b"), collection);
 	}
 
 	@Test
 	public void putAllTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		source.put(1, Arrays.asList("a", "b", "c"));
 		map.putAll(source);
 		Assertions.assertEquals(1, map.size());
@@ -46,7 +46,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void putValueTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertTrue(map.putValue(1, "a"));
 		Assertions.assertTrue(map.putValue(1, "b"));
 		Assertions.assertTrue(map.putValue(1, "c"));
@@ -56,12 +56,12 @@ public class ListValueMapTest {
 
 	@Test
 	public void putAllValueTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertTrue(map.putAllValues(1, Arrays.asList("a", "b", "c")));
 		Assertions.assertEquals(1, map.size());
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.get(1));
 
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		Assertions.assertTrue(map.putValue(1, "e"));
 		Assertions.assertTrue(map.putValue(1, "f"));
 		map.putAllValues(source);
@@ -70,14 +70,14 @@ public class ListValueMapTest {
 
 	@Test
 	public void putValuesTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.get(1));
 	}
 
 	@Test
 	public void removeValueTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValue(1, "d"));
 		Assertions.assertTrue(map.removeValue(1, "c"));
@@ -86,7 +86,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void removeAllValuesTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeAllValues(1, Arrays.asList("e", "f")));
 		Assertions.assertTrue(map.removeAllValues(1, Arrays.asList("b", "c")));
@@ -95,7 +95,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void removeValuesTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValues(1, "e", "f"));
 		Assertions.assertTrue(map.removeValues(1, "b", "c"));
@@ -104,7 +104,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void testFilterAllValues() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -119,7 +119,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void testReplaceAllValues() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -134,7 +134,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void getValuesTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(Collections.emptyList(), map.getValues(2));
 		Assertions.assertEquals(Arrays.asList("a", "b", "c"), map.getValues(1));
@@ -142,7 +142,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void sizeTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(0, map.size(2));
 		Assertions.assertEquals(3, map.size(1));
@@ -150,10 +150,10 @@ public class ListValueMapTest {
 
 	@Test
 	public void allForEachTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putValues(1, "a", "b", "c");
-		List<Integer> keys = new ArrayList<>();
-		List<String> values = new ArrayList<>();
+		final List<Integer> keys = new ArrayList<>();
+		final List<String> values = new ArrayList<>();
 		map.allForEach((k, v) -> {
 			keys.add(k);
 			values.add(v);
@@ -164,7 +164,7 @@ public class ListValueMapTest {
 
 	@Test
 	public void allValuesTest() {
-		MultiValueMap<Integer, String> map = new ListValueMap<>();
+		final MultiValueMap<Integer, String> map = new ListValueMap<>();
 		map.putAllValues(1, Arrays.asList("a", "b", "c"));
 		map.putAllValues(2, Arrays.asList("d", "e"));
 		Assertions.assertEquals(
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/map/SetValueMapTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/map/SetValueMapTest.java
index a68c907333..c5bfad98e4 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/map/SetValueMapTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/map/SetValueMapTest.java
@@ -28,16 +28,16 @@ public class SetValueMapTest {
 
 	@Test
 	public void putTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertNull(map.put(1, Arrays.asList("a", "b")));
-		Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
+		final Collection<String> collection = map.put(1, Arrays.asList("c", "d"));
 		Assertions.assertEquals(Arrays.asList("a", "b"), collection);
 	}
 
 	@Test
 	public void putAllTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		source.put(1, Arrays.asList("a", "b", "c"));
 		map.putAll(source);
 		Assertions.assertEquals(1, map.size());
@@ -46,7 +46,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void putValueTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertTrue(map.putValue(1, "a"));
 		Assertions.assertTrue(map.putValue(1, "b"));
 		Assertions.assertTrue(map.putValue(1, "c"));
@@ -56,12 +56,12 @@ public class SetValueMapTest {
 
 	@Test
 	public void putAllValueTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertTrue(map.putAllValues(1, Arrays.asList("a", "b", "c")));
 		Assertions.assertEquals(1, map.size());
 		Assertions.assertEquals(new HashSet<>(Arrays.asList("a", "b", "c")), map.get(1));
 
-		Map<Integer, Collection<String>> source = new HashMap<>();
+		final Map<Integer, Collection<String>> source = new HashMap<>();
 		Assertions.assertTrue(map.putValue(1, "e"));
 		Assertions.assertFalse(map.putValue(1, "e"));
 		Assertions.assertTrue(map.putValue(1, "f"));
@@ -72,14 +72,14 @@ public class SetValueMapTest {
 
 	@Test
 	public void putValuesTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertEquals(new HashSet<>(Arrays.asList("a", "b", "c")), map.get(1));
 	}
 
 	@Test
 	public void removeValueTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValue(1, "d"));
 		Assertions.assertTrue(map.removeValue(1, "c"));
@@ -88,7 +88,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void removeAllValuesTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeAllValues(1, Arrays.asList("e", "f")));
 		Assertions.assertTrue(map.removeAllValues(1, Arrays.asList("b", "c")));
@@ -97,7 +97,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void removeValuesTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertFalse(map.removeValues(1, "e", "f"));
 		Assertions.assertTrue(map.removeValues(1, "b", "c"));
@@ -106,7 +106,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void testFilterAllValues() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -121,7 +121,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void testReplaceAllValues() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		Assertions.assertTrue(map.putValues(1, "a", "b", "c"));
 		Assertions.assertTrue(map.putValues(2, "a", "b", "c"));
 
@@ -136,7 +136,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void getValuesTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(Collections.emptyList(), map.getValues(2));
 		Assertions.assertEquals(new HashSet<>(Arrays.asList("a", "b", "c")), map.getValues(1));
@@ -144,7 +144,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void sizeTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
 		Assertions.assertEquals(0, map.size(2));
 		Assertions.assertEquals(3, map.size(1));
@@ -152,10 +152,10 @@ public class SetValueMapTest {
 
 	@Test
 	public void allForEachTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putValues(1, "a", "b", "c");
-		List<Integer> keys = new ArrayList<>();
-		List<String> values = new ArrayList<>();
+		final List<Integer> keys = new ArrayList<>();
+		final List<String> values = new ArrayList<>();
 		map.allForEach((k, v) -> {
 			keys.add(k);
 			values.add(v);
@@ -166,7 +166,7 @@ public class SetValueMapTest {
 
 	@Test
 	public void allValuesTest() {
-		MultiValueMap<Integer, String> map = new SetValueMap<>();
+		final MultiValueMap<Integer, String> map = new SetValueMap<>();
 		map.putAllValues(1, Arrays.asList("a", "b", "c"));
 		map.putAllValues(2, Arrays.asList("d", "e"));
 		Assertions.assertEquals(
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/map/TolerantMapTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/map/TolerantMapTest.java
index bb4af207c4..fa7c469836 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/map/TolerantMapTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/map/TolerantMapTest.java
@@ -27,7 +27,7 @@ public class TolerantMapTest {
 
 	@Test
 	public void testSerialize() {
-		TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
+		final TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
 		map.put("monday", "星期一");
 		map.put("tuesday", "星期二");
 
@@ -39,7 +39,7 @@ public class TolerantMapTest {
 
 	@Test
 	public void testClone() {
-		TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
+		final TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
 		map.put("monday", "星期一");
 		map.put("tuesday", "星期二");
 
@@ -50,7 +50,7 @@ public class TolerantMapTest {
 
 	@Test
 	public void testGet() {
-		TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
+		final TolerantMap<String, String> map = TolerantMap.of(new HashMap<>(), "default");
 		map.put("monday", "星期一");
 		map.put("tuesday", "星期二");
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/math/MoneyTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/math/MoneyTest.java
index 0ddeca5306..9aaaa3eaf3 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/math/MoneyTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/math/MoneyTest.java
@@ -43,7 +43,7 @@ public class MoneyTest {
 
 	@Test
 	public void currencyScalingTest() {
-		Money jpyMoney = new Money(0, Currency.getInstance("JPY"));
+		final Money jpyMoney = new Money(0, Currency.getInstance("JPY"));
 		jpyMoney.setAmount(BigDecimal.ONE);
 		assertEquals(1, jpyMoney.getCent());
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/reflect/FieldUtilTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/reflect/FieldUtilTest.java
index f6f052ec8d..f80e590f7e 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/reflect/FieldUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/reflect/FieldUtilTest.java
@@ -49,8 +49,8 @@ public class FieldUtilTest {
 		// 如果子类与父类中存在同名字段，则这两个字段同时存在，子类字段在前，父类字段在后。
 		fields = FieldUtil.getFields(TestSubUser.class);
 		assertEquals(4, fields.length);
-		List<Field> idFieldList = Arrays.stream(fields).filter(f -> Objects.equals(f.getName(), TestSubUser.Fields.id)).collect(Collectors.toList());
-		Field firstIdField = CollUtil.getFirst(idFieldList);
+		final List<Field> idFieldList = Arrays.stream(fields).filter(f -> Objects.equals(f.getName(), TestSubUser.Fields.id)).collect(Collectors.toList());
+		final Field firstIdField = CollUtil.getFirst(idFieldList);
 		assertEquals(Objects.requireNonNull(firstIdField).getDeclaringClass().getName(), TestSubUser.class.getName());
 	}
 
@@ -101,7 +101,7 @@ public class FieldUtilTest {
 	public void getFieldMapTest() {
 		// 获取指定类中字段名和字段对应的有序Map，包括其父类中的字段
 		// 如果子类与父类中存在同名字段，则后者覆盖前者。
-		Map<String, Field> fieldMap = FieldUtil.getFieldMap(TestSubUser.class);
+		final Map<String, Field> fieldMap = FieldUtil.getFieldMap(TestSubUser.class);
 		assertEquals(3, fieldMap.size());
 	}
 
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/stream/EasyStreamTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/stream/EasyStreamTest.java
index 7ccd35e478..540bf5b792 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/stream/EasyStreamTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/stream/EasyStreamTest.java
@@ -44,7 +44,7 @@ public class EasyStreamTest {
 	@Test
 	void testIterateHierarchies() {
 		// 创建一个三层的树结构，每个节点都有两个子节点
-		Node node = new Node("1", Arrays.asList(
+		final Node node = new Node("1", Arrays.asList(
 			new Node("1-1", Arrays.asList(
 				new Node("1-1-1", null),
 				new Node("1-1-2", null)
@@ -56,13 +56,13 @@ public class EasyStreamTest {
 		));
 
 		// 按广度度优先遍历树结构
-		List<String> allNodes = new ArrayList<>();
+		final List<String> allNodes = new ArrayList<>();
 		EasyStream.iterateHierarchies(node, node1 -> node1.children)
 			.forEach(node1 -> allNodes.add(node1.id));
 		Assertions.assertEquals(Arrays.asList("1", "1-1", "1-2", "1-1-1", "1-1-2", "1-2-1", "1-2-2"), allNodes);
 
 		// 按广度度优先遍历树结构，忽略id为1-1的节点与以其为根节点的子树
-		List<String> filteredNodes = new ArrayList<>();
+		final List<String> filteredNodes = new ArrayList<>();
 		EasyStream.iterateHierarchies(node, node1 -> node1.children, node1 -> !node1.id.equals("1-1"))
 			.forEach(node1 -> filteredNodes.add(node1.id));
 		Assertions.assertEquals(Arrays.asList("1", "1-2", "1-2-1", "1-2-2"), filteredNodes);
@@ -610,11 +610,11 @@ public class EasyStreamTest {
 	private static class Node {
 		private final String id;
 		private List<Node> children;
-		private Node(String id, List<Node> children) {
+		private Node(final String id, final List<Node> children) {
 			this.id = id;
 			this.children = children;
 		}
-		public Node(String id) {
+		public Node(final String id) {
 			this.id = id;
 		}
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/text/finder/StrFinderTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/text/finder/StrFinderTest.java
index b874db482f..89ec31b668 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/text/finder/StrFinderTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/text/finder/StrFinderTest.java
@@ -12,8 +12,8 @@ public class StrFinderTest {
 	@Test
 	public void testForward() {
 		// 正向查找
-		String text = "Hello Hutool World";
-		StrFinder finder = StrFinder.of("Hutool", false);
+		final String text = "Hello Hutool World";
+		final StrFinder finder = StrFinder.of("Hutool", false);
 		finder.setText(text);
 
 		Assertions.assertEquals(6, finder.start(0));
@@ -23,8 +23,8 @@ public class StrFinderTest {
 	@Test
 	public void testForwardIgnoreCase() {
 		// 正向查找，忽略大小写
-		String text = "Hello HUTOOL World";
-		StrFinder finder = StrFinder.of("hutool", true);
+		final String text = "Hello HUTOOL World";
+		final StrFinder finder = StrFinder.of("hutool", true);
 		finder.setText(text);
 
 		Assertions.assertEquals(6, finder.start(0));
@@ -33,8 +33,8 @@ public class StrFinderTest {
 	@Test
 	public void testReverseBasic() {
 		// 反向查找
-		String text = "abc abc abc";
-		StrFinder finder = StrFinder.of("abc", false);
+		final String text = "abc abc abc";
+		final StrFinder finder = StrFinder.of("abc", false);
 		finder.setNegative(true);
 		finder.setText(text);
 
@@ -46,8 +46,8 @@ public class StrFinderTest {
 	@Test
 	public void testReverseIgnoreCase() {
 		// 反向查找，忽略大小写
-		String text = "ABC abc Abc";
-		StrFinder finder = StrFinder.of("abc", true);
+		final String text = "ABC abc Abc";
+		final StrFinder finder = StrFinder.of("abc", true);
 		finder.setNegative(true);
 		finder.setText(text);
 
@@ -57,14 +57,14 @@ public class StrFinderTest {
 	@Test
 	public void testAlgorithmEdgeCase() {
 
-		String text = "ababa";
+		final String text = "ababa";
 
-		StrFinder forward = StrFinder.of("aba", false);
+		final StrFinder forward = StrFinder.of("aba", false);
 		forward.setText(text);
 		Assertions.assertEquals(0, forward.start(0));
 		Assertions.assertEquals(2, forward.start(1));
 
-		StrFinder reverse = StrFinder.of("aba", false);
+		final StrFinder reverse = StrFinder.of("aba", false);
 		reverse.setNegative(true);
 		reverse.setText(text);
 		Assertions.assertEquals(2, reverse.start(4));
@@ -74,12 +74,12 @@ public class StrFinderTest {
 	@Test
 	public void testZeroCopy() {
 		// 验证toString()优化
-		StringBuilder bigText = new StringBuilder();
+		final StringBuilder bigText = new StringBuilder();
 		bigText.append("ignore-".repeat(1000));
 		bigText.append("TARGET");
 		bigText.append("-ignore");
 
-		StrFinder finder = StrFinder.of("TARGET", false);
+		final StrFinder finder = StrFinder.of("TARGET", false);
 		finder.setText(bigText);
 
 		Assertions.assertEquals(7000, finder.start(0));
@@ -88,8 +88,8 @@ public class StrFinderTest {
 	@Test
 	public void testChinese() {
 		// 中文测试
-		String text = "希望pr能够通过";
-		StrFinder finder = StrFinder.of("通过", false);
+		final String text = "希望pr能够通过";
+		final StrFinder finder = StrFinder.of("通过", false);
 		finder.setText(text);
 
 		Assertions.assertEquals(6, finder.start(0));
@@ -98,7 +98,7 @@ public class StrFinderTest {
 	@Test
 	public void testNotFound() {
 		// 不包含字符串
-		StrFinder finder = StrFinder.of("NotExists", false);
+		final StrFinder finder = StrFinder.of("NotExists", false);
 		finder.setText("Hello World");
 		Assertions.assertEquals(-1, finder.start(0));
 	}
@@ -106,22 +106,22 @@ public class StrFinderTest {
 	@Test
 	public void benchmark() {
 		System.out.println("正在生成测试数据...");
-		StringBuilder sb = new StringBuilder();
-		String base = "abcdefghijklmnopqrstuvwxyz0123456789-";
+		final StringBuilder sb = new StringBuilder();
+		final String base = "abcdefghijklmnopqrstuvwxyz0123456789-";
 		sb.append(base.repeat(500));
-		String target = "HUTOOL_TARGET";
+		final String target = "HUTOOL_TARGET";
 		sb.append(target);
 
-		String textStr = sb.toString();
+		final String textStr = sb.toString();
 
-		int loop = 100;
+		final int loop = 100;
 		for (int i = 0; i < 100; i++) {
 			StrFinder.of(target, false).setText(textStr).start(0);
 		}
 
 		long start = System.currentTimeMillis();
 		for (int i = 0; i < loop; i++) {
-			int index = textStr.indexOf(target);
+			final int index = textStr.indexOf(target);
 			if (index == -1) throw new RuntimeException("Bug!");
 		}
 		long end = System.currentTimeMillis();
@@ -129,7 +129,7 @@ public class StrFinderTest {
 
 		start = System.currentTimeMillis();
 		for (int i = 0; i < loop; i++) {
-			int index = StrFinder.of(target, false).setText(textStr).start(0);
+			final int index = StrFinder.of(target, false).setText(textStr).start(0);
 			if (index == -1) throw new RuntimeException("Bug!");
 		}
 		end = System.currentTimeMillis();
@@ -137,7 +137,7 @@ public class StrFinderTest {
 
 		start = System.currentTimeMillis();
 		for (int i = 0; i < loop; i++) {
-			int index = StrFinder.of(target, false).setText(sb).start(0);
+			final int index = StrFinder.of(target, false).setText(sb).start(0);
 			if (index == -1) throw new RuntimeException("Bug!");
 		}
 		end = System.currentTimeMillis();
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/tree/HierarchyIteratorTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/tree/HierarchyIteratorTest.java
index 179d06c5c1..29c3f71508 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/tree/HierarchyIteratorTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/tree/HierarchyIteratorTest.java
@@ -33,25 +33,25 @@ class HierarchyIteratorTest {
 
 	@Test
 	void testNoSuchElementException() {
-		Node node = createTree();
+		final Node node = createTree();
 		// 根节点也被忽略，将会抛出异常
 		Assertions.assertThrows(IllegalArgumentException.class, () -> HierarchyIterator.depthFirst(node, node1 -> node1.children, node1 -> false));
 		// 忽略所有节点，将会抛出NoSuchElementException
-		HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(node, node1 -> node1.children, node1 -> node1.id.equals("1"));
+		final HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(node, node1 -> node1.children, node1 -> node1.id.equals("1"));
 		Assertions.assertSame(node, iterator.next());
 		Assertions.assertThrows(NoSuchElementException.class, iterator::next);
 	}
 
 	@Test
 	void testDepthFirstWithFilter() {
-		Node node = createTree();
+		final Node node = createTree();
 		// 按深度度优先遍历树结构，忽略id为1-1的节点与以其为根节点的子树
-		List<String> nodes = new ArrayList<>();
-		HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(
+		final List<String> nodes = new ArrayList<>();
+		final HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(
 			node, node1 -> node1.children, node1 -> !node1.id.equals("1-1")
 		);
 		while (iterator.hasNext()) {
-			Node node1 = iterator.next();
+			final Node node1 = iterator.next();
 			nodes.add(node1.id);
 		}
 		Assertions.assertEquals(Arrays.asList("1", "1-2", "1-2-1", "1-2-2"), nodes);
@@ -59,12 +59,12 @@ class HierarchyIteratorTest {
 
 	@Test
 	void testDepthFirst() {
-		Node node = createTree();
+		final Node node = createTree();
 		// 按深度度优先遍历树结构
-		List<String> nodes = new ArrayList<>();
-		HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(node, node1 -> node1.children);
+		final List<String> nodes = new ArrayList<>();
+		final HierarchyIterator<Node> iterator = HierarchyIterator.depthFirst(node, node1 -> node1.children);
 		while (iterator.hasNext()) {
-			Node node1 = iterator.next();
+			final Node node1 = iterator.next();
 			nodes.add(node1.id);
 		}
 		Assertions.assertEquals(Arrays.asList("1", "1-1", "1-1-1", "1-1-2", "1-2", "1-2-1", "1-2-2"), nodes);
@@ -72,14 +72,14 @@ class HierarchyIteratorTest {
 
 	@Test
 	void testBreadthFirstWithFilter() {
-		Node node = createTree();
+		final Node node = createTree();
 		// 按深度度优先遍历树结构，忽略id为1-1的节点与以其为根节点的子树
-		List<String> nodes = new ArrayList<>();
-		HierarchyIterator<Node> iterator = HierarchyIterator.breadthFirst(
+		final List<String> nodes = new ArrayList<>();
+		final HierarchyIterator<Node> iterator = HierarchyIterator.breadthFirst(
 			node, node1 -> node1.children, node1 -> !node1.id.equals("1-1")
 		);
 		while (iterator.hasNext()) {
-			Node node1 = iterator.next();
+			final Node node1 = iterator.next();
 			nodes.add(node1.id);
 		}
 		Assertions.assertEquals(Arrays.asList("1", "1-2", "1-2-1", "1-2-2"), nodes);
@@ -87,12 +87,12 @@ class HierarchyIteratorTest {
 
 	@Test
 	void testBreadthFirst() {
-		Node root = createGraph();
+		final Node root = createGraph();
 		// 按深度度优先遍历图结构
-		List<String> nodes = new ArrayList<>();
-		HierarchyIterator<Node> iterator = HierarchyIterator.breadthFirst(root, node -> node.children);
+		final List<String> nodes = new ArrayList<>();
+		final HierarchyIterator<Node> iterator = HierarchyIterator.breadthFirst(root, node -> node.children);
 		while (iterator.hasNext()) {
-			Node node = iterator.next();
+			final Node node = iterator.next();
 			nodes.add(node.id);
 		}
 		Assertions.assertEquals(Arrays.asList("1", "4", "2", "3"), nodes);
@@ -100,10 +100,10 @@ class HierarchyIteratorTest {
 
 	private static Node createGraph() {
 		// 构建一个包含四个节点的图，每一个节点都有两个相邻节点
-		Node node1 = new Node("1");
-		Node node2 = new Node("2");
-		Node node3 = new Node("3");
-		Node node4 = new Node("4");
+		final Node node1 = new Node("1");
+		final Node node2 = new Node("2");
+		final Node node3 = new Node("3");
+		final Node node4 = new Node("4");
 		node1.children = Arrays.asList(node4, node2);
 		node2.children = Arrays.asList(node1, node3);
 		node3.children = Arrays.asList(node2, node4);
@@ -131,11 +131,11 @@ class HierarchyIteratorTest {
 	private static class Node {
 		private final String id;
 		private List<Node> children;
-		private Node(String id, List<Node> children) {
+		private Node(final String id, final List<Node> children) {
 			this.id = id;
 			this.children = children;
 		}
-		public Node(String id) {
+		public Node(final String id) {
 			this.id = id;
 		}
 	}
diff --git a/hutool-core/src/test/java/cn/hutool/v7/core/util/ObjUtilTest.java b/hutool-core/src/test/java/cn/hutool/v7/core/util/ObjUtilTest.java
index fd26848d20..f92045fe38 100644
--- a/hutool-core/src/test/java/cn/hutool/v7/core/util/ObjUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/v7/core/util/ObjUtilTest.java
@@ -238,13 +238,13 @@ public class ObjUtilTest {
 
 	@Test
 	public void testLengthConsumesIterator() {
-		List<String> list = Arrays.asList("a", "b", "c");
-		Iterator<String> iterator = list.iterator();
+		final List<String> list = Arrays.asList("a", "b", "c");
+		final Iterator<String> iterator = list.iterator();
 		// 迭代器第一次调用length
-		int length1 = ObjUtil.length(iterator);
+		final int length1 = ObjUtil.length(iterator);
 		assertEquals(3, length1);
 		// 迭代器第二次调用length - 迭代器已经被消耗，返回0
-		int length2 = ObjUtil.length(iterator);
+		final int length2 = ObjUtil.length(iterator);
 		assertEquals(0, length2); // 但当前实现会重新遍历，但iterator已经没有元素了
 		// 尝试使用迭代器 - 已经无法使用
 		assertFalse(iterator.hasNext());
@@ -252,13 +252,13 @@ public class ObjUtilTest {
 
 	@Test
 	public void testLengthConsumesEnumeration() {
-		Vector<String> vector = new Vector<>(Arrays.asList("a", "b", "c"));
-		Enumeration<String> enumeration = vector.elements();
+		final Vector<String> vector = new Vector<>(Arrays.asList("a", "b", "c"));
+		final Enumeration<String> enumeration = vector.elements();
 		// 第一次调用length
-		int length1 = ObjUtil.length(enumeration);
+		final int length1 = ObjUtil.length(enumeration);
 		assertEquals(3, length1);
 		// 第二次调用length - 枚举已经被消耗
-		int length2 = ObjUtil.length(enumeration);
+		final int length2 = ObjUtil.length(enumeration);
 		assertEquals(0, length2);
 		// 枚举已经无法使用
 		assertFalse(enumeration.hasMoreElements());
diff --git a/hutool-cron/src/main/java/cn/hutool/v7/cron/TaskTableFactory.java b/hutool-cron/src/main/java/cn/hutool/v7/cron/TaskTableFactory.java
index 72a61a5ec1..eaeb38268a 100644
--- a/hutool-cron/src/main/java/cn/hutool/v7/cron/TaskTableFactory.java
+++ b/hutool-cron/src/main/java/cn/hutool/v7/cron/TaskTableFactory.java
@@ -13,7 +13,7 @@ public class TaskTableFactory {
 	 * @param config 定时任务配置
 	 * @return 任务表
 	 */
-	public static TaskTable create(CronConfig config) {
+	public static TaskTable create(final CronConfig config) {
 		return config.isUseTriggerQueue() ? new TriggerQueueTaskTable() : new MatchTaskTable();
 	}
 }
diff --git a/hutool-cron/src/main/java/cn/hutool/v7/cron/TriggerQueueTaskTable.java b/hutool-cron/src/main/java/cn/hutool/v7/cron/TriggerQueueTaskTable.java
index a11af4a052..2ad8fa2f66 100644
--- a/hutool-cron/src/main/java/cn/hutool/v7/cron/TriggerQueueTaskTable.java
+++ b/hutool-cron/src/main/java/cn/hutool/v7/cron/TriggerQueueTaskTable.java
@@ -40,7 +40,7 @@ public class TriggerQueueTaskTable extends TaskTable {
 	}
 
 	@Override
-	public TriggerQueueTaskTable add(String id, CronPattern pattern, Task task) {
+	public TriggerQueueTaskTable add(final String id, final CronPattern pattern, final Task task) {
 		super.add(id, pattern, task);
 		// 将下一个触发时间及任务添加到队列中
 		this.triggerQueue.offer(new TriggerTime(id, pattern.nextMatchFromNow()));
@@ -48,7 +48,7 @@ public class TriggerQueueTaskTable extends TaskTable {
 	}
 
 	@Override
-	public boolean remove(String id) {
+	public boolean remove(final String id) {
 		// 移除队列中的任务
 		this.triggerQueue.removeIf(task -> StrUtil.equals(task.id(), id));
 		return super.remove(id);
@@ -56,7 +56,7 @@ public class TriggerQueueTaskTable extends TaskTable {
 	}
 
 	@Override
-	public boolean updatePattern(String id, CronPattern pattern) {
+	public boolean updatePattern(final String id, final CronPattern pattern) {
 		// 移除队列中的任务
 		this.triggerQueue.removeIf(task -> StrUtil.equals(task.id(), id));
 		// 将下一个触发时间及任务添加到队列中
@@ -131,7 +131,7 @@ public class TriggerQueueTaskTable extends TaskTable {
 	 */
 	private record TriggerTime(String id, long timestamp) implements Comparable<TriggerTime> {
 		@Override
-		public int compareTo(TriggerTime other) {
+		public int compareTo(final TriggerTime other) {
 			return Long.compare(this.timestamp, other.timestamp);
 		}
 	}
diff --git a/hutool-cron/src/main/java/cn/hutool/v7/cron/pattern/CronPattern.java b/hutool-cron/src/main/java/cn/hutool/v7/cron/pattern/CronPattern.java
index d497145056..f09f5d8084 100644
--- a/hutool-cron/src/main/java/cn/hutool/v7/cron/pattern/CronPattern.java
+++ b/hutool-cron/src/main/java/cn/hutool/v7/cron/pattern/CronPattern.java
@@ -193,7 +193,7 @@ public class CronPattern {
 	 * @return 匹配到的下一个时间时间戳
 	 * @since 7.0.0
 	 */
-	public long nextMatch(long millis) {
+	public long nextMatch(final long millis) {
 		return nextMatch(CalendarUtil.calendar(millis)).getTimeInMillis();
 	}
 
diff --git a/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/SimpleDemo.java b/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/SimpleDemo.java
index 8d94b57ba1..12b961b78f 100644
--- a/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/SimpleDemo.java
+++ b/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/SimpleDemo.java
@@ -20,7 +20,7 @@ import cn.hutool.v7.core.lang.Console;
 import cn.hutool.v7.cron.CronUtil;
 
 public class SimpleDemo {
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		// 打开秒匹配
 		CronUtil.setMatchSecond(true);
 		// 添加任务
diff --git a/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/TriggerQueueTest.java b/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/TriggerQueueTest.java
index 3eb93d0b0d..8d89ee4772 100644
--- a/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/TriggerQueueTest.java
+++ b/hutool-cron/src/test/java/cn/hutool/v7/cron/demo/TriggerQueueTest.java
@@ -5,7 +5,7 @@ import cn.hutool.v7.cron.CronConfig;
 import cn.hutool.v7.cron.Scheduler;
 
 public class TriggerQueueTest {
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		final Scheduler scheduler = new Scheduler(CronConfig.of().setMatchSecond(true).setUseTriggerQueue(true));
 		scheduler.schedule("*/10 * * * * *",
 			() -> Console.log("Hutool task */10 running at: [{}]", System.currentTimeMillis()));
diff --git a/hutool-cron/src/test/java/cn/hutool/v7/cron/timingwheel/Issue3090Test.java b/hutool-cron/src/test/java/cn/hutool/v7/cron/timingwheel/Issue3090Test.java
index 6397718bd4..c95b5897c7 100644
--- a/hutool-cron/src/test/java/cn/hutool/v7/cron/timingwheel/Issue3090Test.java
+++ b/hutool-cron/src/test/java/cn/hutool/v7/cron/timingwheel/Issue3090Test.java
@@ -17,8 +17,8 @@
 package cn.hutool.v7.cron.timingwheel;
 
 public class Issue3090Test {
-	public static void main(String[] args) {
-		SystemTimer timer = new SystemTimer();
+	public static void main(final String[] args) {
+		final SystemTimer timer = new SystemTimer();
 		timer.setDelayQueueTimeout(1000);
 		timer.start();
 		timer.addTask(new TimerTask(() -> {
diff --git a/hutool-crypto/src/main/java/cn/hutool/v7/crypto/asymmetric/Sign.java b/hutool-crypto/src/main/java/cn/hutool/v7/crypto/asymmetric/Sign.java
index 1f3b396422..6455c71eb5 100644
--- a/hutool-crypto/src/main/java/cn/hutool/v7/crypto/asymmetric/Sign.java
+++ b/hutool-crypto/src/main/java/cn/hutool/v7/crypto/asymmetric/Sign.java
@@ -211,7 +211,7 @@ public class Sign extends BaseAsymmetric<Sign> {
 		// If the certificate is of type X509Certificate,
 		// we should check whether it has a Key Usage
 		// extension marked as critical.
-		if (certificate instanceof X509Certificate cert) {
+		if (certificate instanceof final X509Certificate cert) {
 			// Check whether the cert has a key usage extension
 			// marked as a critical extension.
 			// The OID for KeyUsage extension is 2.5.29.15.
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/Entity.java b/hutool-db/src/main/java/cn/hutool/v7/db/Entity.java
index ccfb128727..51dc617207 100644
--- a/hutool-db/src/main/java/cn/hutool/v7/db/Entity.java
+++ b/hutool-db/src/main/java/cn/hutool/v7/db/Entity.java
@@ -431,7 +431,7 @@ public class Entity extends Dict {
 			return SqlUtil.clobToStr((Clob) obj);
 		} else if (obj instanceof Blob) {
 			return SqlUtil.blobToStr((Blob) obj, charset);
-		} else if (obj instanceof RowId rowId) {
+		} else if (obj instanceof final RowId rowId) {
 			return StrUtil.str(rowId.getBytes(), charset);
 		}
 		return super.getStr(field, defaultValue);
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/config/TomlConfigParser.java b/hutool-db/src/main/java/cn/hutool/v7/db/config/TomlConfigParser.java
index 7c6a18faf6..48a8b71a0c 100644
--- a/hutool-db/src/main/java/cn/hutool/v7/db/config/TomlConfigParser.java
+++ b/hutool-db/src/main/java/cn/hutool/v7/db/config/TomlConfigParser.java
@@ -64,10 +64,10 @@ public class TomlConfigParser implements ConfigParser {
 			tomlContent = ResourceUtil.readUtf8Str(tomlPath);
 		} else {
 			// 读取默认TOML文件
-			for (String defaultDbTomlPath : DEFAULT_DB_TOML_PATHS) {
+			for (final String defaultDbTomlPath : DEFAULT_DB_TOML_PATHS) {
 				try {
 					tomlContent = ResourceUtil.readUtf8Str(defaultDbTomlPath);
-				} catch (NoResourceException e) {
+				} catch (final NoResourceException e) {
 					// ignore
 				}
 			}
@@ -83,12 +83,12 @@ public class TomlConfigParser implements ConfigParser {
 	@SuppressWarnings("unchecked")
 	@Override
 	public DbConfig parse(final String group) {
-		Map<String, Object> groupData;
+		final Map<String, Object> groupData;
 
 		if (StrUtil.isEmpty(group)) {
 			groupData = this.tomlData;
 		} else {
-			Object groupObj = this.tomlData.get(group);
+			final Object groupObj = this.tomlData.get(group);
 			if (groupObj instanceof Map) {
 				// 新建一个Map，避免继承属性影响原数据
 				groupData = new HashMap<>((Map<String, Object>) groupObj);
@@ -109,7 +109,7 @@ public class TomlConfigParser implements ConfigParser {
 	/**
 	 * 如果目标map中没有指定键，则从全局配置复制
 	 */
-	private void copyPropertyIfAbsent(Map<String, Object> target, String key) {
+	private void copyPropertyIfAbsent(final Map<String, Object> target, final String key) {
 		if (!target.containsKey(key) && this.tomlData.containsKey(key)) {
 			target.put(key, this.tomlData.get(key));
 		}
@@ -118,9 +118,9 @@ public class TomlConfigParser implements ConfigParser {
 	/**
 	 * 将TOML数据转换为DbConfig对象
 	 */
-	private DbConfig toDbConfig(Map<String, Object> data) {
+	private DbConfig toDbConfig(final Map<String, Object> data) {
 		// 基本信息
-		String url = getAndRemoveString(data, DSKeys.KEY_ALIAS_URL);
+		final String url = getAndRemoveString(data, DSKeys.KEY_ALIAS_URL);
 		if (StrUtil.isBlank(url)) {
 			throw new DbException("No JDBC URL!");
 		}
@@ -131,27 +131,27 @@ public class TomlConfigParser implements ConfigParser {
 			driver = DriverUtil.identifyDriver(url);
 		}
 
-		DbConfig dbConfig = DbConfig.of()
+		final DbConfig dbConfig = DbConfig.of()
 			.setUrl(url)
 			.setDriver(driver)
 			.setUser(getAndRemoveString(data, DSKeys.KEY_ALIAS_USER))
 			.setPass(getAndRemoveString(data, DSKeys.KEY_ALIAS_PASSWORD));
 
 		// SQL日志
-		SqlLogFilter sqlLogFilter = getSqlLogFilter(data);
+		final SqlLogFilter sqlLogFilter = getSqlLogFilter(data);
 		if (sqlLogFilter != null) {
 			dbConfig.addSqlFilter(sqlLogFilter);
 		}
 
 		// 大小写等配置
-		Boolean caseInsensitive = getAndRemoveBoolean(data, DSKeys.KEY_CASE_INSENSITIVE);
+		final Boolean caseInsensitive = getAndRemoveBoolean(data, DSKeys.KEY_CASE_INSENSITIVE);
 		if (null != caseInsensitive) {
 			dbConfig.setCaseInsensitive(caseInsensitive);
 		}
 
 		// 连接配置
-		for (String key : DSKeys.KEY_CONN_PROPS) {
-			String connValue = getAndRemoveString(data, key);
+		for (final String key : DSKeys.KEY_CONN_PROPS) {
+			final String connValue = getAndRemoveString(data, key);
 			if (StrUtil.isNotBlank(connValue)) {
 				dbConfig.addConnProps(key, connValue);
 			}
@@ -178,7 +178,7 @@ public class TomlConfigParser implements ConfigParser {
 	/**
 	 * 获取SQL日志过滤器
 	 */
-	private SqlLogFilter getSqlLogFilter(Map<String, Object> data) {
+	private SqlLogFilter getSqlLogFilter(final Map<String, Object> data) {
 		final Boolean isShowSql = getAndRemoveBoolean(data, DSKeys.KEY_SHOW_SQL);
 		if (isShowSql == null || !isShowSql) {
 			return null;
@@ -191,9 +191,9 @@ public class TomlConfigParser implements ConfigParser {
 		if (sqlLevelStr != null) {
 			sqlLevelStr = sqlLevelStr.toUpperCase();
 		}
-		Level level = ConvertUtil.toEnum(Level.class, sqlLevelStr, Level.DEBUG);
+		final Level level = ConvertUtil.toEnum(Level.class, sqlLevelStr, Level.DEBUG);
 
-		SqlLog sqlLog = new SqlLog();
+		final SqlLog sqlLog = new SqlLog();
 		sqlLog.init(true, isFormatSql, isShowParams, level);
 
 		return new SqlLogFilter(sqlLog);
@@ -206,9 +206,9 @@ public class TomlConfigParser implements ConfigParser {
 	 * @param keys 多个键
 	 * @return 字符串值
 	 */
-	private String getAndRemoveString(Map<String, Object> map, String... keys) {
+	private String getAndRemoveString(final Map<String, Object> map, final String... keys) {
 		Object value = null;
-		for (String key : keys) {
+		for (final String key : keys) {
 			value = map.remove(key);
 			if (null != value) {
 				break;
@@ -224,9 +224,9 @@ public class TomlConfigParser implements ConfigParser {
 	 * @param keys 多个键
 	 * @return 布尔值
 	 */
-	private Boolean getAndRemoveBoolean(Map<String, Object> map, String... keys) {
+	private Boolean getAndRemoveBoolean(final Map<String, Object> map, final String... keys) {
 		Object value = null;
-		for (String key : keys) {
+		for (final String key : keys) {
 			value = map.remove(key);
 			if (null != value) {
 				break;
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/dialect/DDLBuilder.java b/hutool-db/src/main/java/cn/hutool/v7/db/dialect/DDLBuilder.java
deleted file mode 100644
index 962afa3f8d..0000000000
--- a/hutool-db/src/main/java/cn/hutool/v7/db/dialect/DDLBuilder.java
+++ /dev/null
@@ -1,183 +0,0 @@
-package cn.hutool.v7.db.dialect;
-
-import cn.hutool.v7.core.collection.CollUtil;
-import cn.hutool.v7.core.lang.Assert;
-import cn.hutool.v7.core.text.StrJoiner;
-import cn.hutool.v7.core.text.StrUtil;
-import cn.hutool.v7.db.meta.*;
-import cn.hutool.v7.db.sql.QuoteWrapper;
-
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-
-public class DDLBuilder {
-
-	private QuoteWrapper quoteWrapper;
-
-	public String buildCreateTableSql(TableMeta tableMeta) {
-		StringBuilder sqlBuilder = new StringBuilder();
-
-		// 表名
-		final String tableName = tableMeta.getTableName();
-		Assert.notBlank(tableName, "Table name cannot be blank!");
-
-		buildCreateTableStart(sqlBuilder, tableName);
-		sqlBuilder.append(StrUtil.LF);
-
-		// 列定义
-		Collection<Column> columns = tableMeta.getColumns();
-		Assert.notEmpty(columns, "Table must have at least one column");
-		final String columnsDefinition = StrJoiner.of(",\n")
-			.append(columns, column -> "  " + buildColumnDefinition(column)).toString();
-		sqlBuilder.append(columnsDefinition);
-
-		// 主键约束定义
-		buildPrimaryKey(sqlBuilder, tableMeta.getPkNames());
-
-		// 索引定义 (如果有)
-		List<IndexInfo> indexInfoList = tableMeta.getIndexInfoList();
-		if (CollUtil.isNotEmpty(indexInfoList)) {
-			for (IndexInfo indexInfo : indexInfoList) {
-				sqlBuilder.append(",\n  ");
-				if (!indexInfo.isNonUnique()) {
-					sqlBuilder.append("UNIQUE ");
-				}
-				sqlBuilder.append("INDEX `").append(indexInfo.getIndexName()).append("` (");
-
-				// 遍历索引列信息列表
-				List<ColumnIndex> columnIndexInfoList = indexInfo.getColumnIndexInfoList();
-				if (columnIndexInfoList != null && !columnIndexInfoList.isEmpty()) {
-					boolean firstIndexColumn = true;
-					for (ColumnIndex columnIndex : columnIndexInfoList) {
-						if (!firstIndexColumn) {
-							sqlBuilder.append(", ");
-						}
-						sqlBuilder.append("`").append(columnIndex.getColumnName()).append("`");
-						// 可以添加排序信息，如果需要的话
-						String ascOrDesc = columnIndex.getAscOrDesc();
-						if ("D".equalsIgnoreCase(ascOrDesc)) {
-							sqlBuilder.append(" DESC");
-						} else if ("A".equalsIgnoreCase(ascOrDesc)) {
-							sqlBuilder.append(" ASC");
-						}
-						firstIndexColumn = false;
-					}
-				}
-				sqlBuilder.append(")");
-			}
-		}
-
-		buildCreateTableEnd(sqlBuilder);
-
-		// 表注释
-		String remarks = tableMeta.getRemarks();
-		if (remarks != null && !remarks.isEmpty()) {
-			sqlBuilder.append(" COMMENT='").append(remarks.replace("'", "''")).append("'");
-		}
-
-		sqlBuilder.append(";");
-
-		return sqlBuilder.toString();
-	}
-
-	/**
-	 * 通用方法：建表开头（可被子类重写，如Oracle可能有特殊语法），生成如：<br>
-	 * <pre>{@code
-	 *     CREATE TABLE <tableName> (
-	 * }</pre>
-	 *
-	 * @param tableName 表名
-	 */
-	protected void buildCreateTableStart(StringBuilder sqlBuilder,String tableName) {
-		if (StrUtil.isBlank(tableName)) {
-			throw new IllegalArgumentException("Table name cannot be blank!");
-		}
-		sqlBuilder.append("CREATE TABLE ").append(wrap(tableName)).append(" (");
-	}
-
-	protected void buildPrimaryKey(StringBuilder sqlBuilder, Set<String> pkNames) {
-		if (pkNames.isEmpty()) {
-			return;
-		}
-
-		sqlBuilder.append(",\n  PRIMARY KEY (");
-		boolean firstPk = true;
-		for (String pkName : pkNames) {
-			if (!firstPk) {
-				sqlBuilder.append(", ");
-			}
-			sqlBuilder.append(wrap(pkName));
-			firstPk = false;
-		}
-		sqlBuilder.append(")");
-	}
-
-	/**
-	 * 根据Column对象生成列定义
-	 * <p>
-	 * 注意: 这里是一个简化的实现，实际项目中需要根据Column类的具体属性
-	 * 和数据库类型映射来完善
-	 *
-	 * @param column Column对象
-	 * @return 列定义字符串
-	 */
-	private static String buildColumnDefinition(Column column) {
-		StringBuilder columnBuilder = new StringBuilder();
-
-		// 列名
-		columnBuilder.append("`").append(column.getName()).append("`");
-
-		// 数据类型 (这里假设Column有getTypeName方法)
-		// 实际应用中需要更复杂的类型映射
-		ColumnType type = column.getType();
-		if (type != null) {
-			columnBuilder.append(" ").append(type.getTypeName());
-		} else {
-			// 默认使用VARCHAR
-			columnBuilder.append(" VARCHAR(255)");
-		}
-
-		// 是否允许为空 (假设Column有isNullable方法)
-		if (!column.isNullable()) {
-			columnBuilder.append(" NOT NULL");
-		}
-
-		// 默认值 (假设Column有getDefaultValue方法)
-		String defaultValue = column.getColumnDef();
-		if (defaultValue != null) {
-			columnBuilder.append(" DEFAULT '").append(defaultValue.replace("'", "''")).append("'");
-		}
-
-		// 注释 (假设Column有getRemarks方法)
-		String remarks = column.getRemarks();
-		if (remarks != null && !remarks.isEmpty()) {
-			columnBuilder.append(" COMMENT '").append(remarks.replace("'", "''")).append("'");
-		}
-
-		return columnBuilder.toString();
-	}
-
-	/**
-	 * 通用方法：建表结尾（可被子类重写，如MySQL可能有特殊语法），生成如：<br>
-	 * <pre>{@code
-	 *     )
-	 * }</pre>
-	 */
-	protected void buildCreateTableEnd(StringBuilder sqlBuilder) {
-		sqlBuilder.append("\n)");
-	}
-
-	/**
-	 * 字段名包装
-	 *
-	 * @param field 字段名
-	 * @return 包装后的字段名
-	 */
-	private String wrap(String field) {
-		if (null != quoteWrapper) {
-			return quoteWrapper.wrap(field);
-		}
-		return field;
-	}
-}
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/sql/FetchDirection.java b/hutool-db/src/main/java/cn/hutool/v7/db/sql/FetchDirection.java
index a223373bb7..fd60d9b5fe 100644
--- a/hutool-db/src/main/java/cn/hutool/v7/db/sql/FetchDirection.java
+++ b/hutool-db/src/main/java/cn/hutool/v7/db/sql/FetchDirection.java
@@ -44,7 +44,7 @@ public enum FetchDirection {
 	 */
 	private final int value;
 
-	FetchDirection(int value) {
+	FetchDirection(final int value) {
 		this.value = value;
 	}
 
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementBuilder.java b/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementBuilder.java
index a1ac0157ac..50a54b5699 100644
--- a/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementBuilder.java
+++ b/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementBuilder.java
@@ -165,7 +165,7 @@ public class StatementBuilder implements Builder<StatementWrapper> {
 				}
 				if (ArrayUtil.isArray(params)) {
 					ps.fillParams(new ArrayIter<>(params), nullTypeMap);
-				} else if (params instanceof Entity entity) {
+				} else if (params instanceof final Entity entity) {
 					// 对于多Entity批量插入的情况，为防止数据不对齐，故按照首行提供键值对筛选。
 					if(null == keys){
 						keys = entity.keySet();
diff --git a/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementUtil.java b/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementUtil.java
index a82b6f6326..efba27e42d 100644
--- a/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementUtil.java
+++ b/hutool-db/src/main/java/cn/hutool/v7/db/sql/StatementUtil.java
@@ -51,7 +51,7 @@ public class StatementUtil {
 	 * @since 5.8.19
 	 */
 	public static PreparedStatement prepareStatement(final boolean returnGeneratedKey, final DbConfig config, final Connection conn, final String sql, final Object... params) {
-		PreparedStatement statement = StatementBuilder.of()
+		final PreparedStatement statement = StatementBuilder.of()
 			.setConnection(conn)
 			.setReturnGeneratedKey(returnGeneratedKey)
 			.setSqlFilter(Opt.ofNullable(config).map(DbConfig::getSqlFilters).getOrNull())
@@ -68,7 +68,7 @@ public class StatementUtil {
 			if (null != fetchDirection) {
 				statement.setFetchDirection(fetchDirection.getValue());
 			}
-		} catch (SQLException e){
+		} catch (final SQLException e){
 			throw new DbException(e);
 		}
 
@@ -101,7 +101,7 @@ public class StatementUtil {
 	 */
 	public static PreparedStatement prepareStatementForBatch(final DbConfig config, final Connection conn, final String sql,
 															 final Iterable<Object[]> paramsBatch) {
-		PreparedStatement statement = StatementBuilder.of()
+		final PreparedStatement statement = StatementBuilder.of()
 			.setConnection(conn)
 			.setReturnGeneratedKey(false)
 			.setSqlFilter(Opt.ofNullable(config).map(DbConfig::getSqlFilters).getOrNull())
@@ -118,7 +118,7 @@ public class StatementUtil {
 			if (null != fetchDirection) {
 				statement.setFetchDirection(fetchDirection.getValue());
 			}
-		} catch (SQLException e){
+		} catch (final SQLException e){
 			throw new DbException(e);
 		}
 
diff --git a/hutool-db/src/test/java/cn/hutool/v7/db/NamedSqlTest.java b/hutool-db/src/test/java/cn/hutool/v7/db/NamedSqlTest.java
index aa0691ebc5..a218ed2a30 100644
--- a/hutool-db/src/test/java/cn/hutool/v7/db/NamedSqlTest.java
+++ b/hutool-db/src/test/java/cn/hutool/v7/db/NamedSqlTest.java
@@ -148,7 +148,7 @@ public class NamedSqlTest {
 	void selectCaseInTest() {
 		final HashMap<String, Object> paramMap = MapUtil.of("number", new int[]{1, 2, 3});
 
-		NamedSql namedSql = new NamedSql("select case when 2 = any(ARRAY[:number]) and 1 in (1) then 1 else 0 end", paramMap);
+		final NamedSql namedSql = new NamedSql("select case when 2 = any(ARRAY[:number]) and 1 in (1) then 1 else 0 end", paramMap);
 		assertEquals("select case when 2 = any(ARRAY[?]) and 1 in (1) then 1 else 0 end", namedSql.getSql());
 		assertArrayEquals(new int[]{1, 2, 3}, (int[])namedSql.getParamArray()[0]);
 	}
@@ -160,8 +160,8 @@ public class NamedSqlTest {
 		paramMap.put("user1", new Object[]{1, "looly"});
 		paramMap.put("user2", new Object[]{2, "xxxtea"});
 
-		String sql = "INSERT INTO users (id, name) VALUES (:user1), (:user2)";
-		NamedSql namedSql = new NamedSql(sql, paramMap);
+		final String sql = "INSERT INTO users (id, name) VALUES (:user1), (:user2)";
+		final NamedSql namedSql = new NamedSql(sql, paramMap);
 
 		assertEquals("INSERT INTO users (id, name) VALUES (?), (?)", namedSql.getSql());
 		assertArrayEquals(new Object[]{new Object[]{1, "looly"}, new Object[]{2, "xxxtea"}}, namedSql.getParamArray());
diff --git a/hutool-db/src/test/java/cn/hutool/v7/db/PostgreTest.java b/hutool-db/src/test/java/cn/hutool/v7/db/PostgreTest.java
index ad3094f657..895c8b2790 100644
--- a/hutool-db/src/test/java/cn/hutool/v7/db/PostgreTest.java
+++ b/hutool-db/src/test/java/cn/hutool/v7/db/PostgreTest.java
@@ -56,7 +56,7 @@ public class PostgreTest {
 	@Test
 	@Disabled
 	public void upsertTest() {
-		String createTableStr = """
+		final String createTableStr = """
 				CREATE TABLE
 				IF
 					NOT EXISTS "ctest" (
@@ -99,7 +99,7 @@ public class PostgreTest {
 	@Disabled
 	void namedSqlWithInTest() {
 		final HashMap<String, Object> paramMap = MapUtil.of("number", new int[]{1, 2, 3});
-		NamedSql namedSql = new NamedSql("select case when 2 = any(ARRAY[:number]) and 1 in (1) then 1 else 0 end", paramMap);
+		final NamedSql namedSql = new NamedSql("select case when 2 = any(ARRAY[:number]) and 1 in (1) then 1 else 0 end", paramMap);
 		final Db db = Db.of("postgre");
 		final List<Entity> query = db.query(namedSql.getSql(), namedSql.getParamArray());
 		Console.log(query);
diff --git a/hutool-db/src/test/java/cn/hutool/v7/db/config/TomlConfigParserTest.java b/hutool-db/src/test/java/cn/hutool/v7/db/config/TomlConfigParserTest.java
index 9528b94601..5982cd4559 100644
--- a/hutool-db/src/test/java/cn/hutool/v7/db/config/TomlConfigParserTest.java
+++ b/hutool-db/src/test/java/cn/hutool/v7/db/config/TomlConfigParserTest.java
@@ -9,7 +9,7 @@ import static org.junit.jupiter.api.Assertions.assertNull;
 public class TomlConfigParserTest {
 	@Test
 	public void parseTest() {
-		DbConfig dbConfig = TomlConfigParser.of().parse("");
+		final DbConfig dbConfig = TomlConfigParser.of().parse("");
 		assertEquals("org.sqlite.JDBC", dbConfig.getDriver());
 		assertEquals("jdbc:sqlite:test.db", dbConfig.getUrl());
 		assertNull(dbConfig.getUser());
@@ -22,7 +22,7 @@ public class TomlConfigParserTest {
 
 	@Test
 	void parseOrclTest(){
-		DbConfig dbConfig = TomlConfigParser.of().parse("orcl");
+		final DbConfig dbConfig = TomlConfigParser.of().parse("orcl");
 		Console.log(dbConfig);
 
 		assertEquals("oracle.jdbc.OracleDriver", dbConfig.getDriver());
diff --git a/hutool-db/src/test/java/cn/hutool/v7/db/dialect/DDLBuilderTest.java b/hutool-db/src/test/java/cn/hutool/v7/db/dialect/DDLBuilderTest.java
deleted file mode 100644
index 95a7dea090..0000000000
--- a/hutool-db/src/test/java/cn/hutool/v7/db/dialect/DDLBuilderTest.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (c) 2025 Hutool Team and hutool.cn
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package cn.hutool.v7.db.dialect;
-
-import cn.hutool.v7.db.meta.*;
-import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.Test;
-
-import java.util.Arrays;
-import java.util.Collections;
-
-public class DDLBuilderTest {
-
-	@Test
-	public void testGenerateCreateTableSqlWithIndexes() {
-		TableMeta tableMeta = new TableMeta("products");
-
-		// 列定义
-		Column idCol = new Column().setName("id").setType(new ColumnType(-5, "BIGINT", 20)).setPk(true);
-		Column nameCol = new Column().setName("name").setType(new ColumnType(12, "VARCHAR", 100));
-		Column priceCol = new Column().setName("price").setType(new ColumnType(3, "DECIMAL", 10));
-
-		// 索引定义
-		IndexInfo uniqueIndex = new IndexInfo(false, "idx_name", "products", null, null);
-		ColumnIndex nameIdxCol = new ColumnIndex("name", "A");
-		uniqueIndex.setColumnIndexInfoList(Collections.singletonList(nameIdxCol));
-
-		IndexInfo normalIndex = new IndexInfo(true, "idx_price", "products", null, null);
-		ColumnIndex priceIdxCol = new ColumnIndex("price", "D");
-		normalIndex.setColumnIndexInfoList(Collections.singletonList(priceIdxCol));
-
-		tableMeta.addColumn(idCol).addColumn(nameCol).addColumn(priceCol);
-		tableMeta.setIndexInfoList(Arrays.asList(uniqueIndex, normalIndex));
-
-		final DDLBuilder ddlBuilder = new DDLBuilder();
-		String sql = ddlBuilder.buildCreateTableSql(tableMeta);
-		Assertions.assertEquals("""
-			CREATE TABLE products (
-			  `id` BIGINT NOT NULL,
-			  `name` VARCHAR NOT NULL,
-			  `price` DECIMAL NOT NULL,
-			  PRIMARY KEY (id),
-			  UNIQUE INDEX `idx_name` (`name` ASC),
-			  INDEX `idx_price` (`price` DESC)
-			);""", sql);
-	}
-}
diff --git a/hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/CommonsFtp.java b/hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/CommonsFtp.java
index 6252e48f71..c028c2c5ab 100644
--- a/hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/CommonsFtp.java
+++ b/hutool-extra/src/main/java/cn/hutool/v7/extra/ftp/CommonsFtp.java
@@ -404,7 +404,7 @@ public class CommonsFtp extends AbstractFtp {
 	}
 
 	@Override
-	public boolean rename(String oldPath, String newPath) {
+	public boolean rename(final String oldPath, final String newPath) {
 		try {
 			return this.client.rename(oldPath, newPath);
 		} catch (final IOException e) {
diff --git a/hutool-extra/src/main/java/cn/hutool/v7/extra/spring/SpringUtil.java b/hutool-extra/src/main/java/cn/hutool/v7/extra/spring/SpringUtil.java
index c661aa4f61..90eb80dd07 100644
--- a/hutool-extra/src/main/java/cn/hutool/v7/extra/spring/SpringUtil.java
+++ b/hutool-extra/src/main/java/cn/hutool/v7/extra/spring/SpringUtil.java
@@ -288,7 +288,7 @@ public class SpringUtil implements ApplicationContextInitializer<ConfigurableApp
 	 */
 	public static void unregisterBean(final String beanName) {
 		final ConfigurableListableBeanFactory factory = getConfigurableBeanFactory();
-		if (factory instanceof DefaultSingletonBeanRegistry registry) {
+		if (factory instanceof final DefaultSingletonBeanRegistry registry) {
 			registry.destroySingleton(beanName);
 		} else {
 			throw new HutoolException("Can not unregister bean, the factory is not a DefaultSingletonBeanRegistry!");
diff --git a/hutool-extra/src/main/java/cn/hutool/v7/extra/template/TemplateConfig.java b/hutool-extra/src/main/java/cn/hutool/v7/extra/template/TemplateConfig.java
index 85b398b967..98d677d4dd 100644
--- a/hutool-extra/src/main/java/cn/hutool/v7/extra/template/TemplateConfig.java
+++ b/hutool-extra/src/main/java/cn/hutool/v7/extra/template/TemplateConfig.java
@@ -212,7 +212,7 @@ public class TemplateConfig implements Serializable {
 	 * @return this
 	 * @since 5.8.38
 	 */
-	public TemplateConfig setUseCache(boolean useCache) {
+	public TemplateConfig setUseCache(final boolean useCache) {
 		this.useCache = useCache;
 		return this;
 	}
diff --git a/hutool-extra/src/test/java/cn/hutool/v7/extra/compress/ExtractorTest.java b/hutool-extra/src/test/java/cn/hutool/v7/extra/compress/ExtractorTest.java
index 1d0587ac2a..36fac7f51f 100644
--- a/hutool-extra/src/test/java/cn/hutool/v7/extra/compress/ExtractorTest.java
+++ b/hutool-extra/src/test/java/cn/hutool/v7/extra/compress/ExtractorTest.java
@@ -22,6 +22,7 @@ import cn.hutool.v7.extra.compress.extractor.Extractor;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
+@SuppressWarnings("resource")
 public class ExtractorTest {
 
 	@Test
@@ -47,7 +48,7 @@ public class ExtractorTest {
 	@Test
 	@Disabled
 	public void tgzTest(){
-		Extractor extractor = 	CompressUtil.createExtractor(
+		final Extractor extractor = 	CompressUtil.createExtractor(
 				CharsetUtil.defaultCharset(),
 				"tgz",
 				FileUtil.file("d:/test/test.tgz"));
diff --git a/hutool-extra/src/test/java/cn/hutool/v7/extra/mail/MailTest.java b/hutool-extra/src/test/java/cn/hutool/v7/extra/mail/MailTest.java
index 2455b8c47b..f66e20ce41 100644
--- a/hutool-extra/src/test/java/cn/hutool/v7/extra/mail/MailTest.java
+++ b/hutool-extra/src/test/java/cn/hutool/v7/extra/mail/MailTest.java
@@ -86,7 +86,7 @@ public class MailTest {
 	@Test
 	@Disabled
 	public void sendHtmlWithPicsTest() {
-		HashMap<String, InputStream> map = new HashMap<>();
+		final HashMap<String, InputStream> map = new HashMap<>();
 		map.put("abc", FileUtil.getInputStream("D:/test/abc.png"));
 		map.put("abcd",FileUtil.getInputStream("D:/test/def.png"));
 
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/client/HttpDownloader.java b/hutool-http/src/main/java/cn/hutool/v7/http/client/HttpDownloader.java
index 9f9b802dfd..f870d46b0d 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/client/HttpDownloader.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/client/HttpDownloader.java
@@ -53,7 +53,7 @@ public class HttpDownloader {
 	 * @param url    请求地址
 	 * @return 下载器
 	 */
-	public static HttpDownloader of(ClientEngine engine, String url) {
+	public static HttpDownloader of(final ClientEngine engine, final String url) {
 		return of(url).setEngine(engine).setCloseEngine(false);
 	}
 
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient4/HttpClient4Engine.java b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient4/HttpClient4Engine.java
index ac6efdccbb..6e3709ac2d 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient4/HttpClient4Engine.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient4/HttpClient4Engine.java
@@ -170,7 +170,7 @@ public class HttpClient4Engine extends AbstractClientEngine {
 		);
 
 		// 连接池配置
-		if (config instanceof ApacheHttpClientConfig apacheHttpClientConfig) {
+		if (config instanceof final ApacheHttpClientConfig apacheHttpClientConfig) {
 			final int maxTotal = apacheHttpClientConfig.getMaxTotal();
 			if (maxTotal > 0) {
 				manager.setMaxTotal(maxTotal);
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient5/HttpClient5Engine.java b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient5/HttpClient5Engine.java
index 3ec7855073..147245cfd5 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient5/HttpClient5Engine.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/httpclient5/HttpClient5Engine.java
@@ -189,7 +189,7 @@ public class HttpClient5Engine extends AbstractClientEngine {
 		connectionManagerBuilder.setDefaultConnectionConfig(connectionConfigBuilder.build());
 
 		// 连接池配置
-		if (config instanceof ApacheHttpClientConfig apacheHttpClientConfig) {
+		if (config instanceof final ApacheHttpClientConfig apacheHttpClientConfig) {
 			final int maxTotal = apacheHttpClientConfig.getMaxTotal();
 			if (maxTotal > 0) {
 				connectionManagerBuilder.setMaxConnTotal(maxTotal);
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/jdk/JdkHttpConnection.java b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/jdk/JdkHttpConnection.java
index 0fff057475..f6085dc674 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/jdk/JdkHttpConnection.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/client/engine/jdk/JdkHttpConnection.java
@@ -219,7 +219,7 @@ public class JdkHttpConnection implements HeaderOperation<JdkHttpConnection>, Cl
 	public JdkHttpConnection setSSLInfo(final SSLInfo sslInfo) throws HttpException {
 		final HttpURLConnection conn = this.conn;
 
-		if (conn instanceof HttpsURLConnection httpsConn) {
+		if (conn instanceof final HttpsURLConnection httpsConn) {
 			// Https请求
 			// 验证域
 			Opt.ofNullable(sslInfo.getHostnameVerifier()).ifPresent(httpsConn::setHostnameVerifier);
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyHandler.java b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyHandler.java
index 89e42e4646..d8c6b3bb46 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyHandler.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyHandler.java
@@ -41,7 +41,7 @@ public class JettyHandler extends Handler.Abstract {
 	}
 
 	@Override
-	public boolean handle(Request request, Response response, Callback callback) {
+	public boolean handle(final Request request, final Response response, final Callback callback) {
 		handler.handle(new JettyRequest(request), new JettyResponse(response));
 		return true;
 	}
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyRequest.java b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyRequest.java
index 60283b3ae4..e0c5a0a75c 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyRequest.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyRequest.java
@@ -37,7 +37,7 @@ public class JettyRequest implements ServerRequest {
 	 *
 	 * @param request Jetty请求对象
 	 */
-	public JettyRequest(Request request) {
+	public JettyRequest(final Request request) {
 		this.request = request;
 	}
 
@@ -57,7 +57,7 @@ public class JettyRequest implements ServerRequest {
 	}
 
 	@Override
-	public String getHeader(String name) {
+	public String getHeader(final String name) {
 		return request.getHeaders().get(name);
 	}
 
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyResponse.java b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyResponse.java
index 696d65645c..d06ccf9d5d 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyResponse.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/jetty/JettyResponse.java
@@ -38,18 +38,18 @@ public class JettyResponse implements ServerResponse {
 	 *
 	 * @param response Jetty响应对象
 	 */
-	public JettyResponse(Response response) {
+	public JettyResponse(final Response response) {
 		this.response = response;
 	}
 
 	@Override
-	public JettyResponse setStatus(int statusCode) {
+	public JettyResponse setStatus(final int statusCode) {
 		response.setStatus(statusCode);
 		return this;
 	}
 
 	@Override
-	public JettyResponse setCharset(Charset charset) {
+	public JettyResponse setCharset(final Charset charset) {
 		this.charset = charset;
 		return this;
 	}
@@ -60,13 +60,13 @@ public class JettyResponse implements ServerResponse {
 	}
 
 	@Override
-	public JettyResponse addHeader(String header, String value) {
+	public JettyResponse addHeader(final String header, final String value) {
 		response.getHeaders().add(header, value);
 		return this;
 	}
 
 	@Override
-	public JettyResponse setHeader(String header, String value) {
+	public JettyResponse setHeader(final String header, final String value) {
 		response.getHeaders().put(header, value);
 		return this;
 	}
diff --git a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/smart/SmartHttpServerEngine.java b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/smart/SmartHttpServerEngine.java
index 46afdc0dc6..6bf8d5a832 100644
--- a/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/smart/SmartHttpServerEngine.java
+++ b/hutool-http/src/main/java/cn/hutool/v7/http/server/engine/smart/SmartHttpServerEngine.java
@@ -81,10 +81,10 @@ public class SmartHttpServerEngine extends AbstractServerEngine {
 		if(null != sslContext){
 			try {
 				// 使用反射创建SslPlugin
-				Class<?> sslPluginClass = Class.forName("org.smartboot.socket.extension.plugins.SslPlugin");
-				Object sslPlugin = sslPluginClass.getConstructor(Supplier.class).newInstance((Supplier<SSLContext>) () -> sslContext);
+				final Class<?> sslPluginClass = Class.forName("org.smartboot.socket.extension.plugins.SslPlugin");
+				final Object sslPlugin = sslPluginClass.getConstructor(Supplier.class).newInstance((Supplier<SSLContext>) () -> sslContext);
 				// 使用反射调用addPlugin方法
-				Method addPlugin = configuration.getClass().getMethod("addPlugin", Object.class);
+				final Method addPlugin = configuration.getClass().getMethod("addPlugin", Object.class);
 				addPlugin.invoke(configuration, sslPlugin);
 			} catch (final Exception e) {
 				throw new HttpException(e);
diff --git a/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3240Test.java b/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3240Test.java
index f31d709704..d433cbf14b 100755
--- a/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3240Test.java
+++ b/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3240Test.java
@@ -27,7 +27,7 @@ public class Issue3240Test {
 	@Test
 	@Disabled
 	void okHttpTest() {
-		String url = "https://gh.yubue.cn/https://github.com/espressif/arduino-esp32/releases/download/2.0.11/package_esp32_dev_index.json";
+		final String url = "https://gh.yubue.cn/https://github.com/espressif/arduino-esp32/releases/download/2.0.11/package_esp32_dev_index.json";
 		final ClientEngine engine = HttpUtil.createClient("okhttp");
 		final Response send = engine.send(Request.of(url).method(Method.GET));
 		Console.log(send.body().getString());
@@ -36,7 +36,7 @@ public class Issue3240Test {
 	@Test
 	@Disabled
 	void httpClient4Test() {
-		String url = "https://gh.yubue.cn/https://github.com/espressif/arduino-esp32/releases/download/2.0.11/package_esp32_dev_index.json";
+		final String url = "https://gh.yubue.cn/https://github.com/espressif/arduino-esp32/releases/download/2.0.11/package_esp32_dev_index.json";
 		final ClientEngine engine = HttpUtil.createClient("okhttp");
 		final Response send = engine.send(Request.of(url).method(Method.GET));
 		Console.log(send.body().getString());
diff --git a/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3765Test.java b/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3765Test.java
index afbdc80a4d..0725f4b69b 100644
--- a/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3765Test.java
+++ b/hutool-http/src/test/java/cn/hutool/v7/http/client/Issue3765Test.java
@@ -24,7 +24,7 @@ import org.junit.jupiter.api.Test;
 
 public class Issue3765Test {
 
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		HttpUtil.createServer(8888)
 			.setRoot("d:/test/www")
 			.start();
diff --git a/hutool-http/src/test/java/cn/hutool/v7/http/client/IssueIB1QHQTest.java b/hutool-http/src/test/java/cn/hutool/v7/http/client/IssueIB1QHQTest.java
index 2c8d07ddb4..b3c04756b4 100644
--- a/hutool-http/src/test/java/cn/hutool/v7/http/client/IssueIB1QHQTest.java
+++ b/hutool-http/src/test/java/cn/hutool/v7/http/client/IssueIB1QHQTest.java
@@ -27,7 +27,7 @@ public class IssueIB1QHQTest {
 	@Disabled
 	void requestByOkHttpTest() {
 		for (int i = 0; i < 3; i++) {
-			String response = ClientEngineFactory.createEngine("OkHttp")
+			final String response = ClientEngineFactory.createEngine("OkHttp")
 				.send(Request
 					.of("https://hutool.cn")
 					.method(Method.POST)
diff --git a/hutool-http/src/test/java/cn/hutool/v7/http/server/IssueI6Q30XTest.java b/hutool-http/src/test/java/cn/hutool/v7/http/server/IssueI6Q30XTest.java
index 34f9cf5849..e0dcabeae3 100644
--- a/hutool-http/src/test/java/cn/hutool/v7/http/server/IssueI6Q30XTest.java
+++ b/hutool-http/src/test/java/cn/hutool/v7/http/server/IssueI6Q30XTest.java
@@ -34,7 +34,7 @@ import java.util.concurrent.TimeUnit;
  * form-data: file: file-data
  */
 public class IssueI6Q30XTest {
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		final SimpleServer server = HttpUtil.createServer(8888);
 		server.addAction("/file", (request, response) -> {
 			Console.log(((SunServerRequest)request).getHeaders().entrySet());
diff --git a/hutool-http/src/test/java/cn/hutool/v7/http/server/engine/SunServerTest.java b/hutool-http/src/test/java/cn/hutool/v7/http/server/engine/SunServerTest.java
index 07cbddda75..88e9d6ea01 100644
--- a/hutool-http/src/test/java/cn/hutool/v7/http/server/engine/SunServerTest.java
+++ b/hutool-http/src/test/java/cn/hutool/v7/http/server/engine/SunServerTest.java
@@ -26,7 +26,7 @@ import javax.net.ssl.SSLContext;
 import java.security.KeyStore;
 
 public class SunServerTest {
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		final char[] pwd = "123456".toCharArray();
 		final KeyStore keyStore = KeyStoreUtil.readJKSKeyStore(FileUtil.file("d:/test/keystore.jks"), pwd);
 		// 初始化SSLContext
diff --git a/hutool-json/src/main/java/cn/hutool/v7/json/JSONObject.java b/hutool-json/src/main/java/cn/hutool/v7/json/JSONObject.java
index a18fba91ce..ae9b99c5fe 100644
--- a/hutool-json/src/main/java/cn/hutool/v7/json/JSONObject.java
+++ b/hutool-json/src/main/java/cn/hutool/v7/json/JSONObject.java
@@ -167,7 +167,7 @@ public class JSONObject extends MapWrapper<String, JSON> implements JSON, JSONGe
 			return putValue(key, 1);
 		}
 
-		if (json instanceof JSONPrimitive jsonPrimitive) {
+		if (json instanceof final JSONPrimitive jsonPrimitive) {
 			if (jsonPrimitive.isNumber()) {
 				jsonPrimitive.increment();
 				return this;
diff --git a/hutool-json/src/main/java/cn/hutool/v7/json/serializer/impl/TemporalTypeAdapter.java b/hutool-json/src/main/java/cn/hutool/v7/json/serializer/impl/TemporalTypeAdapter.java
index cc200fd022..b1645c62be 100644
--- a/hutool-json/src/main/java/cn/hutool/v7/json/serializer/impl/TemporalTypeAdapter.java
+++ b/hutool-json/src/main/java/cn/hutool/v7/json/serializer/impl/TemporalTypeAdapter.java
@@ -134,11 +134,11 @@ public class TemporalTypeAdapter implements MatcherJSONSerializer<TemporalAccess
 	 * @param json JSONObject
 	 */
 	private static void toJSONObject(final TemporalAccessor bean, final JSONObject json) {
-		if (bean instanceof LocalDate localDate) {
+		if (bean instanceof final LocalDate localDate) {
 			json.putValue(YEAR_KEY, localDate.getYear());
 			json.putValue(MONTH_KEY, localDate.getMonthValue());
 			json.putValue(DAY_KEY, localDate.getDayOfMonth());
-		} else if (bean instanceof LocalDateTime localDateTime) {
+		} else if (bean instanceof final LocalDateTime localDateTime) {
 			json.putValue(YEAR_KEY, localDateTime.getYear());
 			json.putValue(MONTH_KEY, localDateTime.getMonthValue());
 			json.putValue(DAY_KEY, localDateTime.getDayOfMonth());
@@ -146,7 +146,7 @@ public class TemporalTypeAdapter implements MatcherJSONSerializer<TemporalAccess
 			json.putValue(MINUTE_KEY, localDateTime.getMinute());
 			json.putValue(SECOND_KEY, localDateTime.getSecond());
 			json.putValue(NANO_KEY, localDateTime.getNano());
-		} else if (bean instanceof LocalTime localTime) {
+		} else if (bean instanceof final LocalTime localTime) {
 			json.putValue(HOUR_KEY, localTime.getHour());
 			json.putValue(MINUTE_KEY, localTime.getMinute());
 			json.putValue(SECOND_KEY, localTime.getSecond());
diff --git a/hutool-json/src/main/java/cn/hutool/v7/json/support/JSONNodeBeanFactory.java b/hutool-json/src/main/java/cn/hutool/v7/json/support/JSONNodeBeanFactory.java
index ed79682b22..b194d42ea2 100644
--- a/hutool-json/src/main/java/cn/hutool/v7/json/support/JSONNodeBeanFactory.java
+++ b/hutool-json/src/main/java/cn/hutool/v7/json/support/JSONNodeBeanFactory.java
@@ -48,7 +48,7 @@ public class JSONNodeBeanFactory implements NodeBeanFactory<JSON> {
 		final BeanPath<JSON> next = beanPath.next();
 		if (null != next) {
 			final Node node = next.getNode();
-			if (node instanceof NameNode nameNode) {
+			if (node instanceof final NameNode nameNode) {
 				if (nameNode.isNumber()) {
 					return JSONUtil.ofArray(config);
 				}
diff --git a/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue3289Test.java b/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue3289Test.java
index 8d940207d4..41ac7c04f0 100644
--- a/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue3289Test.java
+++ b/hutool-json/src/test/java/cn/hutool/v7/json/issues/Issue3289Test.java
@@ -25,7 +25,7 @@ public class Issue3289Test {
 	@Test
 	void parseTest() {
 		Assertions.assertThrows(JSONException.class, () -> {
-			String s = "{\"G\":00,[6E962756779]}";
+			final String s = "{\"G\":00,[6E962756779]}";
 			JSONUtil.parse(s);
 		});
 	}
diff --git a/hutool-json/src/test/java/cn/hutool/v7/json/issues/IssueID61QRTest.java b/hutool-json/src/test/java/cn/hutool/v7/json/issues/IssueID61QRTest.java
index 595392c0dd..29ecd81219 100644
--- a/hutool-json/src/test/java/cn/hutool/v7/json/issues/IssueID61QRTest.java
+++ b/hutool-json/src/test/java/cn/hutool/v7/json/issues/IssueID61QRTest.java
@@ -29,7 +29,7 @@ public class IssueID61QRTest {
 	@SuppressWarnings("unchecked")
 	@Test
 	public void testName() {
-		JSONObject map1 = JSONUtil.ofObj(new JSONConfig().setDateFormat("yyyy"));
+		final JSONObject map1 = JSONUtil.ofObj(new JSONConfig().setDateFormat("yyyy"));
 		map1.putValue("a", 3);
 		map1.putValue("b", 5);
 		map1.putValue("c", 5432);
diff --git a/hutool-json/src/test/java/cn/hutool/v7/json/jwt/Issue4105Test.java b/hutool-json/src/test/java/cn/hutool/v7/json/jwt/Issue4105Test.java
index 06d315c118..0ccccd828a 100644
--- a/hutool-json/src/test/java/cn/hutool/v7/json/jwt/Issue4105Test.java
+++ b/hutool-json/src/test/java/cn/hutool/v7/json/jwt/Issue4105Test.java
@@ -28,9 +28,9 @@ public class Issue4105Test {
 	void verifyNoneTest() {
 		// {"alg": "none"}.{"exp": 1642196407}
 		// 当定义alg为none时，校验总是成功
-		String head = Base64.encode("{\"alg\": \"none\"}");
-		String payload = Base64.encode("{\"exp\": 1642196407}");
-		String token = StrUtil.format("{}.{}.", head, payload);
+		final String head = Base64.encode("{\"alg\": \"none\"}");
+		final String payload = Base64.encode("{\"exp\": 1642196407}");
+		final String token = StrUtil.format("{}.{}.", head, payload);
 
 		final JWT jwt = JWTUtil.parseToken(token);
 		Assertions.assertNull(jwt.getSigner());
@@ -46,9 +46,9 @@ public class Issue4105Test {
 	void verifyEmptyTest() {
 		// {"alg": "none"}.{"exp": 1642196407}
 		// 当定义alg为none时，校验总是成功
-		String head = Base64.encode("{\"alg\": \"\"}");
-		String payload = Base64.encode("{\"exp\": 1642196407}");
-		String token = StrUtil.format("{}.{}.", head, payload);
+		final String head = Base64.encode("{\"alg\": \"\"}");
+		final String payload = Base64.encode("{\"exp\": 1642196407}");
+		final String token = StrUtil.format("{}.{}.", head, payload);
 
 		final JWT jwt = JWTUtil.parseToken(token);
 		Assertions.assertNull(jwt.getSigner());
@@ -64,9 +64,9 @@ public class Issue4105Test {
 	void verifyHs256Test() {
 		// {"alg": "none"}.{"exp": 1642196407}
 		// 当定义alg为none时，校验总是成功
-		String head = Base64.encode("{\"alg\": \"HS256\"}");
-		String payload = Base64.encode("{\"exp\": 1642196407}");
-		String token = StrUtil.format("{}.{}.", head, payload);
+		final String head = Base64.encode("{\"alg\": \"HS256\"}");
+		final String payload = Base64.encode("{\"exp\": 1642196407}");
+		final String token = StrUtil.format("{}.{}.", head, payload);
 
 		final JWT jwt = JWTUtil.parseToken(token);
 		Assertions.assertNull(jwt.getSigner());
diff --git a/hutool-json/src/test/java/cn/hutool/v7/json/xml/IssueID0HP2Test.java b/hutool-json/src/test/java/cn/hutool/v7/json/xml/IssueID0HP2Test.java
index ed356064cf..8c44d6cd0d 100644
--- a/hutool-json/src/test/java/cn/hutool/v7/json/xml/IssueID0HP2Test.java
+++ b/hutool-json/src/test/java/cn/hutool/v7/json/xml/IssueID0HP2Test.java
@@ -17,7 +17,7 @@ public class IssueID0HP2Test {
 		final JSONObject json = JSONUtil.ofObj(JSONConfig.of().setDateFormat("yyyy/MM/dd"))
 			.putValue("date", DateUtil.parse("2025-10-03"));
 
-		String xml = JSONUtil.toXmlStr(json);
+		final String xml = JSONUtil.toXmlStr(json);
 		Assertions.assertEquals("<date>2025/10/03</date>", xml);
 	}
 }
diff --git a/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/ExcelBase.java b/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/ExcelBase.java
index f0964cdc7a..5b42b26314 100644
--- a/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/ExcelBase.java
+++ b/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/ExcelBase.java
@@ -219,7 +219,7 @@ public class ExcelBase<T extends ExcelBase<T, C>, C extends ExcelConfig> impleme
 	@SuppressWarnings("unchecked")
 	public T cloneSheet(final int sheetIndex, final String newSheetName, final boolean setAsCurrentSheet) {
 		final Sheet sheet;
-		if (this.workbook instanceof XSSFWorkbook xssfWorkbook) {
+		if (this.workbook instanceof final XSSFWorkbook xssfWorkbook) {
 			sheet = xssfWorkbook.cloneSheet(sheetIndex, newSheetName);
 		} else {
 			sheet = this.workbook.cloneSheet(sheetIndex);
diff --git a/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/sax/Excel03SaxReader.java b/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/sax/Excel03SaxReader.java
index 66defbfa10..12b5502646 100644
--- a/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/sax/Excel03SaxReader.java
+++ b/hutool-poi/src/main/java/cn/hutool/v7/poi/excel/sax/Excel03SaxReader.java
@@ -210,7 +210,7 @@ public class Excel03SaxReader implements HSSFListener, ExcelSaxReader<Excel03Sax
 			return;
 		}
 
-		if (record instanceof BoundSheetRecord boundSheetRecord) {
+		if (record instanceof final BoundSheetRecord boundSheetRecord) {
 			// Sheet边界记录，此Record中可以获得Sheet名
 			boundSheetRecords.add(boundSheetRecord);
 			final String currentSheetName = boundSheetRecord.getSheetname();
@@ -220,7 +220,7 @@ public class Excel03SaxReader implements HSSFListener, ExcelSaxReader<Excel03Sax
 		} else if (record instanceof SSTRecord) {
 			// 静态字符串表
 			sstRecord = (SSTRecord) record;
-		} else if (record instanceof BOFRecord bofRecord) {
+		} else if (record instanceof final BOFRecord bofRecord) {
 			if (bofRecord.getType() == BOFRecord.TYPE_WORKSHEET) {
 				// 如果有需要，则建立子工作薄
 				if (workbookBuildingListener != null && stubWorkbook == null) {
@@ -237,7 +237,7 @@ public class Excel03SaxReader implements HSSFListener, ExcelSaxReader<Excel03Sax
 				processLastCellSheet();
 			}
 		} else if (isProcessCurrentSheet()) {
-			if (record instanceof MissingCellDummyRecord mc) {
+			if (record instanceof final MissingCellDummyRecord mc) {
 				// 空值的操作
 				addToRowCellList(mc);
 			} else if (record instanceof LastCellOfRowDummyRecord) {
diff --git a/hutool-setting/src/main/java/cn/hutool/v7/setting/toml/TomlWriter.java b/hutool-setting/src/main/java/cn/hutool/v7/setting/toml/TomlWriter.java
index 167f78371c..574c1a9038 100644
--- a/hutool-setting/src/main/java/cn/hutool/v7/setting/toml/TomlWriter.java
+++ b/hutool-setting/src/main/java/cn/hutool/v7/setting/toml/TomlWriter.java
@@ -152,7 +152,7 @@ public class TomlWriter {
 		for (final Map.Entry<String, Object> entry : table.entrySet()) {
 			final String name = entry.getKey();
 			final Object value = entry.getValue();
-			if (value instanceof Collection<?> c) {// array
+			if (value instanceof final Collection<?> c) {// array
 				if (!c.isEmpty() && c.iterator().next() instanceof Map) {// array of tables
 					if (simpleValues) {
 						continue;
@@ -178,7 +178,7 @@ public class TomlWriter {
 					write(" = ");
 					writeArray(c);
 				}
-			} else if (value instanceof Object[] array) {// array
+			} else if (value instanceof final Object[] array) {// array
 				if (array.length > 0 && array[0] instanceof Map) {// array of tables
 					if (simpleValues) {
 						continue;
diff --git a/hutool-swing/src/test/java/cn/hutool/v7/swing/FlatLafTest.java b/hutool-swing/src/test/java/cn/hutool/v7/swing/FlatLafTest.java
index c21386b1d5..4ae4815e68 100644
--- a/hutool-swing/src/test/java/cn/hutool/v7/swing/FlatLafTest.java
+++ b/hutool-swing/src/test/java/cn/hutool/v7/swing/FlatLafTest.java
@@ -21,7 +21,7 @@ import com.formdev.flatlaf.FlatDarculaLaf;
 import javax.swing.JFrame;
 
 public class FlatLafTest {
-	public static void main(String[] args) {
+	public static void main(final String[] args) {
 		FlatDarculaLaf.setup();
 		final JFrame frame = new JFrame("我的窗口");
 		frame.setSize(400, 300);