From 747bafaf969857b66233a8b4660590bdd712ed7d Mon Sep 17 00:00:00 2001
From: Jian He <jianhe@apache.org>
Date: Thu, 2 Mar 2017 10:58:56 -0800
Subject: [PATCH] MAPREDUCE-6852. Job#updateStatus() failed with NPE due to
 race condition. Contributed by Junping Du

---
 .../src/main/java/org/apache/hadoop/mapreduce/Job.java          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java
index 45c065da5e..84d90deff6 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java
@@ -323,7 +323,7 @@ synchronized void updateStatus() throws IOException {
       this.status = ugi.doAs(new PrivilegedExceptionAction<JobStatus>() {
         @Override
         public JobStatus run() throws IOException, InterruptedException {
-          return cluster.getClient().getJobStatus(status.getJobID());
+          return cluster.getClient().getJobStatus(getJobID());
         }
       });
     }