HADOOP-1355. Fix null pointer dereference in TaskLogAppender.append(LoggingEvent). Contributed by Arun C Murthy.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@538641 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -18,6 +18,9 @@ Trunk (unreleased changes)
      to be the same as the replication factor of the original file.
      (Dhruba Borthakur via tomwhite.)
 
+  6. HADOOP-1355.  Fix null pointer dereference in 
+     TaskLogAppender.append(LoggingEvent).  (Arun C Murthy via tomwhite.)
+
 
 Branch 0.13 (unreleased changes)
 

src/java/org/apache/hadoop/mapred/TaskLogAppender.java

@@ -43,6 +43,7 @@ public class TaskLogAppender extends AppenderSkeleton {
     if (this.layout == null) {
       errorHandler.error("No layout for appender " + name , 
                          null, ErrorCode.MISSING_LAYOUT);
+      return;
     }
     
     // Log the message to the task's log