Description
This is regression from my recent checkin from hbase-9390 below is the exception stack:
2013-10-03 09:34:32,735 ERROR [WriterThread-1] wal.HLogSplitter: Exiting thread java.lang.NullPointerException at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$LogReplayOutputSink.groupEditsByServer(HLogSplitter.java:1489) at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$LogReplayOutputSink.append(HLogSplitter.java:1368) at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$WriterThread.writeBuffer(HLogSplitter.java:847) at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$WriterThread.doRun(HLogSplitter.java:839) at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$WriterThread.run(HLogSplitter.java:809)