From 8938b7a67873c80a563791de961673e4a03af71e Mon Sep 17 00:00:00 2001
From: lujiefsi <lujiefsi@foxmail.com>
Date: Tue, 1 Dec 2020 19:38:16 +0530
Subject: [PATCH] HBASE-25332:fix One pontential NPE

Closes #2715

Signed-off-by: Viraj Jasani <vjasani@apache.org>
---
 .../org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java
index 1d076855ff8..038e4dfc0e0 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java
@@ -467,7 +467,7 @@ final class RSGroupInfoManagerImpl implements RSGroupInfoManager {
         }
         for (String znode : children) {
           byte[] data = ZKUtil.getData(watcher, ZNodePaths.joinZNode(groupBasePath, znode));
-          if (data.length > 0) {
+          if (data != null && data.length > 0) {
             ProtobufUtil.expectPBMagicPrefix(data);
             ByteArrayInputStream bis =
               new ByteArrayInputStream(data, ProtobufUtil.lengthOfPBMagic(), data.length);