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From "Liyin Tang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-3731) NPE in HTable.getRegionsInfo()
Date Mon, 04 Apr 2011 21:55:06 GMT
NPE in HTable.getRegionsInfo()
------------------------------

                 Key: HBASE-3731
                 URL: https://issues.apache.org/jira/browse/HBASE-3731
             Project: HBase
          Issue Type: Bug
            Reporter: Liyin Tang


In HTable.getRegionInfo
<code>
HRegionInfo info = Writables.getHRegionInfo(
            rowResult.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER));
</code>
But the rowResult.getValue() may return null, and Writables.getHRegionInfo will throw NullPoinException
when the parameter is null.

2 fixes here: 
1) In Writables.getHRegionInfo(). We need to check whether the data is null before using data.length.
2)<code>
HRegionInfo info = Writables.getHRegionInfoOrNull(
            rowResult.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER));
if(info == null)
  return false
</code>

Any thoughts?


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