hi all.. please help..

i am getting the following error:

i am using only one <local-tx-datasource> [jboss 3.2.6]

org.jboss.util.NestedSQLException: Could not enlist in transaction on entering meta-aware object!javax.transaction.SystemException: enlistResource failed; - nested throwable: (javax.resource.ResourceException: Could not enlist in transaction on entering meta-aware object!javax.transaction.SystemException: enlistResource failed)

com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: No operations allowed after connection closed.Connection was implicitly closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **

com.mysql.jdbc.CommunicationsException
MESSAGE: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.net.SocketException
MESSAGE: Software caused connection abort: socket write error

STACKTRACE:

java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2631)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1548)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1659)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3112)
at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:5209)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnection.begin(LocalManagedConnection.java:135)
at org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource.start(TxConnectionManager.java:650)
at org.jboss.tm.TransactionImpl.startResource(TransactionImpl.java:1196)
at org.jboss.tm.TransactionImpl.enlistResource(TransactionImpl.java:649)
at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:437)
at org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:323)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:502)