From 6cc0c86133666a249746a61cc6ce68d68a1e3fb7 Mon Sep 17 00:00:00 2001
From: Andrew Kyle Purtell <apurtell@apache.org>
Date: Wed, 22 Jan 2014 20:17:43 +0000
Subject: [PATCH] Amend HBASE-10338 Fix NPE if the server is terminated before
 the RegionServerCoprocessorHost is initialized (Vandana Ayyalasomayajula)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1560494 13f79535-47bb-0310-9956-ffa450edef68
---
 .../org/apache/hadoop/hbase/regionserver/HRegionServer.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
index 2144fbcc786..b74358e54f4 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
@@ -1734,7 +1734,9 @@ public class HRegionServer implements ClientProtos.ClientService.BlockingInterfa
   @Override
   public void stop(final String msg) {
     try {
-      this.rsHost.preStop(msg);
+    	if (this.rsHost != null) {
+    		this.rsHost.preStop(msg);
+    	}
       this.stopped = true;
       LOG.info("STOPPED: " + msg);
       // Wakes run() if it is sleeping