fix code

hutool-core/src/main/java/cn/hutool/core/annotation/AnnotationUtil.java

@@ -34,8 +34,8 @@ public class AnnotationUtil {
 	 * @return 组合注解元素
 	 */
 	public static CombinationAnnotationElement toCombination(AnnotatedElement annotationEle) {
-		if(annotationEle instanceof CombinationAnnotationElement) {
-			return (CombinationAnnotationElement)annotationEle;
+		if (annotationEle instanceof CombinationAnnotationElement) {
+			return (CombinationAnnotationElement) annotationEle;
 		}
 		return new CombinationAnnotationElement(annotationEle);
 	}
@@ -121,11 +121,10 @@ public class AnnotationUtil {
 				if (ArrayUtil.isEmpty(t.getParameterTypes())) {
 					// 只读取无参方法
 					final String name = t.getName();
-					if ("hashCode".equals(name) || "toString".equals(name) || "annotationType".equals(name)) {
 					// 跳过自有的几个方法
-						return false;
-					}
-					return true;
+					return (false == "hashCode".equals(name)) //
+							&& (false == "toString".equals(name)) //
+							&& (false == "annotationType".equals(name));
 				}
 				return false;
 			}
@@ -161,7 +160,7 @@ public class AnnotationUtil {
 	public static ElementType[] getTargetType(Class<? extends Annotation> annotationType) {
 		final Target target = annotationType.getAnnotation(Target.class);
 		if (null == target) {
-			return new ElementType[] { ElementType.TYPE, //
+			return new ElementType[]{ElementType.TYPE, //
 					ElementType.FIELD, //
 					ElementType.METHOD, //
 					ElementType.PARAMETER, //

hutool-core/src/main/java/cn/hutool/core/collection/ArrayIter.java

@@ -18,11 +18,11 @@ public class ArrayIter<E> implements Iterator<E>, Iterable<E>, Serializable{
 	/** 数组 */
 	private Object array;
 	/** 起始位置 */
-	private int startIndex = 0;
+	private int startIndex;
 	/** 结束位置 */
-	private int endIndex = 0;
+	private int endIndex;
 	/** 当前位置 */
-	private int index = 0;
+	private int index;
 
 	/**
 	 * 构造

hutool-core/src/main/java/cn/hutool/core/collection/BoundedPriorityQueue.java

@@ -35,7 +35,7 @@ public class BoundedPriorityQueue<E> extends PriorityQueue<E>{
 
 			@Override
 			public int compare(E o1, E o2) {
-				int cResult = 0;
+				int cResult;
 				if(comparator != null) {
 					cResult = comparator.compare(o1, o2);
 				}else {

hutool-core/src/main/java/cn/hutool/core/collection/CopiedIter.java

@@ -25,7 +25,6 @@ import java.util.List;
 public class CopiedIter<E> implements Iterator<E>, Iterable<E>, Serializable {
 	private static final long serialVersionUID = 1L;
 
-	private List<E> eleList = new LinkedList<>();
 	private Iterator<E> listIterator;
 	
 	public static <V> CopiedIter<V> copyOf(Iterator<V> iterator){
@@ -37,9 +36,7 @@ public class CopiedIter<E> implements Iterator<E>, Iterable<E>, Serializable {
 	 * @param iterator 被复制的Iterator
 	 */
 	public CopiedIter(Iterator<E> iterator) {
-		while (iterator.hasNext()) {
-			eleList.add(iterator.next());
-		}
+		final List<E> eleList = CollUtil.newArrayList(iterator);
 		this.listIterator = eleList.iterator();
 	}
 

hutool-core/src/main/java/cn/hutool/core/collection/IterUtil.java

@@ -376,7 +376,7 @@ public class IterUtil {
 	 * @return Map
 	 */
 	public static <K, V> HashMap<K, V> toMap(Iterable<Entry<K, V>> entryIter) {
-		final HashMap<K, V> map = new HashMap<K, V>();
+		final HashMap<K, V> map = new HashMap<>();
 		if (isNotEmpty(entryIter)) {
 			for (Entry<K, V> entry : entryIter) {
 				map.put(entry.getKey(), entry.getValue());
@@ -500,7 +500,7 @@ public class IterUtil {
 	 * @return {@link Iterator}
 	 */
 	public static <E> Iterator<E> asIterator(Enumeration<E> e) {
-		return new EnumerationIter<E>(e);
+		return new EnumerationIter<>(e);
 	}
 
 	/**
@@ -571,15 +571,12 @@ public class IterUtil {
 	 */
 	public static Class<?> getElementType(Iterator<?> iterator) {
 		final Iterator<?> iter2 = new CopiedIter<>(iterator);
-		if (null != iter2) {
-			Object t;
-			while (iter2.hasNext()) {
-				t = iter2.next();
+		if (iter2.hasNext()) {
+			final Object t = iter2.next();
 			if (null != t) {
 				return t.getClass();
 			}
 		}
-		}
 		return null;
 	}