commit a2e33c97016319e5f11246006e37613ea4622627

Author: Rahul Kumar Singh <rksingh@yahoo-inc.com>
Date:   Fri May 7 12:02:50 2010 +0530

    MAPREDUCE:1317 from https://issues.apache.org/jira/secure/attachment/12443927/3623945-yahoo-20-1xx.patch
    
    +++ b/YAHOO-CHANGES.txt
    +    MAPREDUCE-1317. NPE in setHostName in Rumen. (rksingh)
    +


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security-patches@1077447 13f79535-47bb-0310-9956-ffa450edef68

src/tools/org/apache/hadoop/tools/rumen/LoggedTaskAttempt.java

@@ -135,7 +135,7 @@ public class LoggedTaskAttempt implements DeepCompare {
   }
 
   void setHostName(String hostName) {
-    this.hostName = hostName.intern();
+    this.hostName = (hostName == null) ? null : hostName.intern();
   }
 
   public long getHdfsBytesRead() {