add test

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

@@ -2727,6 +2727,20 @@ public class CollUtil {
 		throw new IllegalArgumentException(StrUtil.format("[{}] is not support to get empty!", collectionClass));
 	}
 
+	/**
+	 * 清除一个或多个集合内的元素，每个集合调用clear()方法
+	 *
+	 * @param collections 一个或多个集合
+	 * @since 5.3.6
+	 */
+	public static void clear(Collection<?>... collections) {
+		for (Collection<?> collection : collections) {
+			if (isNotEmpty(collection)) {
+				collection.clear();
+			}
+		}
+	}
+
 	// ---------------------------------------------------------------------------------------------- Interface start
 
 	/**

hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java

@@ -1115,4 +1115,17 @@ public class MapUtil {
 		// 不支持空集合的集合类型
 		throw new IllegalArgumentException(StrUtil.format("[{}] is not support to get empty!", mapClass));
 	}
+
+	/**
+	 * 清除一个或多个Map集合内的元素，每个Map调用clear()方法
+	 *
+	 * @param maps 一个或多个Map
+	 */
+	public static void clear(Map<?, ?>... maps) {
+		for (Map<?, ?> map : maps) {
+			if (isNotEmpty(map)) {
+				map.clear();
+			}
+		}
+	}
 }

hutool-db/src/test/java/cn/hutool/db/nosql/RedisDSTest.java

@@ -0,0 +1,15 @@
+package cn.hutool.db.nosql;
+
+import cn.hutool.db.nosql.redis.RedisDS;
+import org.junit.Ignore;
+import org.junit.Test;
+import redis.clients.jedis.Jedis;
+
+public class RedisDSTest {
+
+	@Test
+	@Ignore
+	public void redisDSTest(){
+		final Jedis jedis = RedisDS.create().getJedis();
+	}
+}

hutool-db/src/test/resources/config/redis.setting

@@ -18,7 +18,7 @@ connectionTimeout = 2000
 # 读取超时，默认timeout
 soTimeout = 2000
 # 密码，默认无
-password = 
+#password =
 # 数据库序号，默认0
 database = 0
 # 客户端名，默认"Hutool"