From 0e31ba2fc59f337b2daea877c69b2d32b7f4f6a9 Mon Sep 17 00:00:00 2001
From: bwcx_jzy <zeyin.jiang@aylaso.com>
Date: Thu, 7 Jan 2021 11:24:05 +0800
Subject: [PATCH] =?UTF-8?q?CollUtil.forEach=20=E5=A2=9E=E5=8A=A0null=20?=
 =?UTF-8?q?=E5=88=A4=E6=96=AD?=
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---
 .../java/cn/hutool/core/collection/CollUtil.java     | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
index 7f629bc0f..01f6c0bea 100644
--- a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
@@ -2560,6 +2560,9 @@ public class CollUtil {
 	 * @since 5.4.7
 	 */
 	public static <T> void forEach(Iterable<T> iterable, Consumer<T> consumer) {
+		if(iterable == null){
+			return;
+		}
 		forEach(iterable.iterator(), consumer);
 	}
 
@@ -2571,6 +2574,9 @@ public class CollUtil {
 	 * @param consumer {@link Consumer} 遍历的每条数据处理器
 	 */
 	public static <T> void forEach(Iterator<T> iterator, Consumer<T> consumer) {
+		if(iterator == null){
+			return;
+		}
 		int index = 0;
 		while (iterator.hasNext()) {
 			consumer.accept(iterator.next(), index);
@@ -2586,6 +2592,9 @@ public class CollUtil {
 	 * @param consumer    {@link Consumer} 遍历的每条数据处理器
 	 */
 	public static <T> void forEach(Enumeration<T> enumeration, Consumer<T> consumer) {
+		if(enumeration == null){
+			return;
+		}
 		int index = 0;
 		while (enumeration.hasMoreElements()) {
 			consumer.accept(enumeration.nextElement(), index);
@@ -2603,6 +2612,9 @@ public class CollUtil {
 	 * @param kvConsumer {@link KVConsumer} 遍历的每条数据处理器
 	 */
 	public static <K, V> void forEach(Map<K, V> map, KVConsumer<K, V> kvConsumer) {
+		if(map == null){
+			return;
+		}
 		int index = 0;
 		for (Entry<K, V> entry : map.entrySet()) {
 			kvConsumer.accept(entry.getKey(), entry.getValue(), index);