From e6276857ae615b5a130cf41a60a21dc52dd83911 Mon Sep 17 00:00:00 2001
From: birdstorm <samuelwyf@hotmail.com>
Date: Wed, 31 Mar 2021 17:14:17 +0900
Subject: [PATCH] cherry pick #160 to release-3.1

Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
---
 src/main/java/org/tikv/common/util/ClientUtils.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/tikv/common/util/ClientUtils.java b/src/main/java/org/tikv/common/util/ClientUtils.java
index 2836ea0126e..e85babf608b 100644
--- a/src/main/java/org/tikv/common/util/ClientUtils.java
+++ b/src/main/java/org/tikv/common/util/ClientUtils.java
@@ -121,7 +121,7 @@ public static Map<TiRegion, List<ByteString>> groupKeysByRegion(
 
   public static Map<TiRegion, List<ByteString>> groupKeysByRegion(
       RegionManager regionManager, List<ByteString> keys, BackOffer backoffer) {
-    return groupKeysByRegion(regionManager, new ArrayList<>(keys), backoffer, false);
+    return groupKeysByRegion(regionManager, keys, backoffer, false);
   }
 
   /**