test failure in TRUNK

[Ted Yu]

For org.apache.hadoop.hbase.rest.TestStatusResource.testGetClusterStatusXML:

java.io.IOException: Error in readFields
        at 
org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:584)
        at org.apache.hadoop.hbase.ipc.Invocation.readFields(Invocation.java:64)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Connection.processData(HBaseServer.java:1152)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1112)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:669)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:463)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: A record version mismatch occured. Expecting v1, found v0
        at 
org.apache.hadoop.io.VersionedWritable.readFields(VersionedWritable.java:46)
        at 
org.apache.hadoop.hbase.HServerLoad$RegionLoad.readFields(HServerLoad.java:316)
        at org.apache.hadoop.hbase.HServerLoad.readFields(HServerLoad.java:606)
        at 
org.apache.hadoop.hbase.io.HbaseObjectWritable.readObject(HbaseObjectWritable.java:581)
        ... 8 more

I think the above may have been caused by HBASE-3900.

I fixed 
TestHeapSize.testSizes<https://builds.apache.org/view/G-L/view/HBase/job/HBase-TRUNK/lastCompletedBuild/testReport/org.apache.hadoop.hbase.io/TestHeapSize/testSizes/>:

Index: src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
===================================================================
--- src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
(revision 1162317)
+++ src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
(working copy)
@@ -1765,7 +1765,7 @@
   }

   public static final long FIXED_OVERHEAD = ClassSize.align(
-      ClassSize.OBJECT + (15 * ClassSize.REFERENCE) +
+      ClassSize.OBJECT + (16 * ClassSize.REFERENCE) +
       (8 * Bytes.SIZEOF_LONG) + (1 * Bytes.SIZEOF_DOUBLE) +
       (6 * Bytes.SIZEOF_INT) + (3 * Bytes.SIZEOF_BOOLEAN));

Cheers