Exception occured assuming connection is not valid

Hi
I am getting following error while executing a stored procedure.
Exception occured assuming connection is not valid. This Connection has either timed out or been closed, and it has returned to its pool. You must re-acquire the Connection.
Unable to close connection: This Connection has either timed out or been closed, and it has returned to its pool. You must re-acquire the Connection.
Error is not frequent but it comes 1 outof 100 cases
Can anyone give me a clue why this happens and how to sort out
regards,
Kamlesh

Anywhere in your code that calls Connecton.close(). He means (I believe) that your code may have a condition that causes it to call close() before it's done with the connection.
How are you acquiring the connection? Is it acquired and released in the same block of code or do you store it somewhere assumming it will be there when you need it?

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Hmm... I can't think of anything else that could be causing the problem.
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2011-06-11 08:05:29,680 WARN [org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory] Destroying connection that is not valid, due to the following exception: ConnectionID:2941
com.microsoft.sqlserver.jdbc.SQLServerException: Connection reset
at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1352)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1339)
at com.microsoft.sqlserver.jdbc.TDSChannel.read(IOBuffer.java:1654)
at com.microsoft.sqlserver.jdbc.TDSReader.readPacket(IOBuffer.java:3694)
at com.microsoft.sqlserver.jdbc.TDSCommand.startResponse(IOBuffer.java:5022)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(SQLServerStatement.java:773)
at com.microsoft.sqlserver.jdbc.SQLServerStatement$StmtExecCmd.doExecute(SQLServerStatement.java:676)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:4575)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1400)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:179)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:154)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.execute(SQLServerStatement.java:649)
at org.jboss.resource.adapter.jdbc.CheckValidConnectionSQL.isValidConnection(CheckValidConnectionSQL.java:58)
at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnectionFactory.isValidConnection(BaseWrapperManagedConnectionFactory.java:435)
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at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:211)
at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:538)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.getManagedConnection(BaseConnectionManager2.java:341)
at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:315)
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at org.hibernate.loader.Loader.doQuery(Loader.java:673)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
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<local-tx-datasource>
<jndi-name>jdbc/bpmsdb</jndi-name>
<connection-url>jdbc:sqlserver://ipaddress:1433;DatabaseName=BPMS</connection-url>
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<user-name>user</user-name>
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<min-pool-size>5</min-pool-size>
<max-pool-size>50</max-pool-size>
<exception-sorter-class-name>
org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter
</exception-sorter-class-name>
<metadata>
<type-mapping>MS SQLSERVER2000</type-mapping>
</metadata>
<new-connection-sql>select 1</new-connection-sql>
<check-valid-connection-sql>select 1</check-valid-connection-sql>
<idle-timeout-minutes>5</idle-timeout-minutes>
</local-tx-datasource>

I´m facing similar problem with Linux and SQL Server 2008 R2. I made the downgrade of JDK 1.6 from 27 to 26 (some people reporting errors when upgraded to jdk1.6_29 and rolling back is ok) but for me the error persists. At this moment we are testing with
sqljdbc4.jar version 4.0 (released in 3/6/2012). The curious I have two equals Linux boxes and only one have presented connection reset errors.
Thanks in advance.
Carlos

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http://msdn.microsoft.com/en-us/library/ff647766.aspx
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Patrick Liang
TechNet Community Support

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