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From "Manoranjan Sahu (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4794) NPE at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.finishAndRTS
Date Tue, 07 Sep 2010 16:10:33 GMT
NPE at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.finishAndRTS 
------------------------------------------------------------------------------

                 Key: DERBY-4794
                 URL: https://issues.apache.org/jira/browse/DERBY-4794
             Project: Derby
          Issue Type: Bug
          Components: Miscellaneous
         Environment: Derby version info -- as seen in MANIFEST.MF
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.5
Created-By: 1.4.2_12-b03 (Sun Microsystems Inc.)
Bundle-Vendor: Apache Software Foundation
Bundle-Name: Apache Derby 10.3
Bundle-Version: 10.3.1000004.561794
Sealed: true

            Reporter: Manoranjan Sahu


Derby is throwing NPE randomly while executing simple sql statements. 

Stack trace in derby.log

Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.

	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)

	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)

	at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)

	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)

	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)

	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)

	at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)

	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)

	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source)

	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeQuery(Unknown Source)

	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeSelect(DatabaseAccessor.java:726)

	at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:501)

	... 58 more

Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.

	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)

	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)

	... 70 more

Caused by: java.lang.NullPointerException

	at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.finishAndRTS(Unknown Source)

	at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.finish(Unknown Source)

	at org.apache.derby.impl.sql.execute.BaseActivation.close(Unknown Source)

	at org.apache.derby.impl.sql.GenericActivationHolder.execute(Unknown Source)

	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)

	... 63 more

It is noticed that this issue is happening randomly , during selects and inserts. I did not
find any quick reproduction steps for it.




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