MAPREDUCE-3770. Zombie.getJobConf() results into NPE. (amarrk)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1241865 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -211,6 +211,8 @@ Release 0.23.1 - 2012-02-08
     acmurthy) 
 
   BUG FIXES
+    MAPREDUCE-3770. Zombie.getJobConf() results into NPE. (amarrk)
+
     MAPREDUCE-3804. yarn webapp interface vulnerable to cross scripting attacks
     (Dave Thompson via bobby)
 

hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/ZombieJob.java

@@ -229,7 +229,7 @@ public class ZombieJob implements JobStory {
   @Override
   public String getName() {
     JobName jobName = job.getJobName();
-    if (jobName == null) {
+    if (jobName == null || jobName.getValue() == null) {
       return "(name unknown)";
     } else {
       return jobName.getValue();