Creating table threw NullPointerException
-----------------------------------------

                 Key: HBASE-4112
                 URL: https://issues.apache.org/jira/browse/HBASE-4112
             Project: HBase
          Issue Type: Bug
          Components: master
    Affects Versions: 0.90.3
            Reporter: gaojinchao
             Fix For: 0.90.4


 It happened in latest branch 0.90. but I can't reproduce it.
>
> It seems using api getHRegionInfoOrNull is better or check the input 
> parameter before call getHRegionInfo.
>
> Code:
>  public static Writable getWritable(final byte [] bytes, final 
> Writable w)
>  throws IOException {
>    return getWritable(bytes, 0, bytes.length, w);
>  }
> return getWritable(bytes, 0, bytes.length, w);  // It seems input 
> parameter bytes is null
>
> logs:
> 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Socket connection 
> established to C4C3.site/157.5.100.3:2181, initiating session
> 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Session establishment 
> complete on server C4C3.site/157.5.100.3:2181, sessionid = 0x2312b8e3f700002, 
> negotiated timeout = 180000 [INFO] Create : ufdr111 222!
> [INFO] Create : ufdr111 start!
> java.lang.NullPointerException
>        at 
> org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:75)
>        at 
> org.apache.hadoop.hbase.util.Writables.getHRegionInfo(Writables.java:1
> 19)
>        at 
> org.apache.hadoop.hbase.client.HBaseAdmin$1.processRow(HBaseAdmin.java
> :306)
>        at 
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:1
> 90)
>        at 
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:9
> 5)
>        at 
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:7
> 3)
>        at 
> org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:
> 325)
>        at createTable.main(createTable.java:96)
>


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