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https://issues.apache.org/jira/browse/HBASE-2920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902543#action_12902543
]
stack commented on HBASE-2920:
------------------------------
+1
> HTable.checkAndPut/Delete doesn't handle null values
> ----------------------------------------------------
>
> Key: HBASE-2920
> URL: https://issues.apache.org/jira/browse/HBASE-2920
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.89.20100621
> Reporter: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.90.0
>
> Attachments: HBASE-2920.patch
>
>
> From John Beatty on the ML:
> {quote}
> Thanks Ryan, but I seem to be missing something then. It NPEs for me.
> When running against 0.89.20100726 and providing a null expected value
> I get the below stack trace (and works like a champ when I provide a
> byte[0]. I also don't see the transformation you're referring to in
> HTable.
> (for reference,
> http://svn.apache.org/viewvc/hbase/branches/0.89.20100726/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java?view=markup)
> java.io.IOException: java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:845)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:835)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.checkAndMutate(HRegionServer.java:1754)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.checkAndPut(HRegionServer.java:1773)
> at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:576)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:919)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegion.checkAndMutate(HRegion.java:1616)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.checkAndMutate(HRegionServer.java:1751)
> ... 6 more
> {quote}
> Looking in the code, I'm not sure either where the null conversion is done,
> even worse is that we don't even have unit tests! It should be put
> intoTestFromClientSide.
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