diff --git a/hutool-core/src/main/java/cn/hutool/core/util/ClassUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/ClassUtil.java
index e697fed49..d20d481d4 100755
--- a/hutool-core/src/main/java/cn/hutool/core/util/ClassUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/ClassUtil.java
@@ -1110,4 +1110,24 @@ public class ClassUtil {
 		}
 		return location.getPath();
 	}
+
+	/**
+	 * 是否为抽象类或接口
+	 *
+	 * @param clazz 类
+	 * @return 是否为抽象类或接口
+	 */
+	public static boolean isAbstractOrInterface(Class<?> clazz) {
+		return isAbstract(clazz) || isInterface(clazz);
+	}
+
+	/**
+	 * 是否为接口
+	 *
+	 * @param clazz 类
+	 * @return 是否为接口
+	 */
+	public static boolean isInterface(Class<?> clazz) {
+		return clazz.isInterface();
+	}
 }
diff --git a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
index 5b40c361f..31f7019a1 100755
--- a/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/NumberUtil.java
@@ -2766,4 +2766,15 @@ public class NumberUtil {
 		}
 	}
 	// ------------------------------------------------------------------------------------------- Private method end
+
+	/**
+	 * null转换为BigDecimal<br>
+	 *
+	 * @param bigDecimal 被转换的值
+	 * @return BigDecimal
+	 * @since 5.8.2
+	 */
+	public static BigDecimal nullToZero(BigDecimal bigDecimal) {
+		return bigDecimal == null ? BigDecimal.ZERO : bigDecimal;
+	}
 }