oracle-ds doesn't work on JDK 6

2009-04-06 15:45:28,854 ERROR [org.jboss.resource.adapter.jdbc.xa.XAManagedConnectionFactory] End transaction failed for X
AResource
javax.transaction.xa.XAException
at oracle.jdbc.xa.OracleXAResource.allowGlobalTxnModeOnly(OracleXAResource.java:912)
at oracle.jdbc.xa.OracleXAResource.suspendStacked(OracleXAResource.java:297)
at oracle.jdbc.xa.client.OracleXAResource.end(OracleXAResource.java:371)
at org.jboss.resource.adapter.jdbc.xa.XAManagedConnection.end(XAManagedConnection.java:158)
at org.jboss.resource.connectionmanager.xa.JcaXAResourceWrapper.end(JcaXAResourceWrapper.java:58)
at com.arjuna.ats.internal.jta.resources.arjunacore.XAResourceRecord.topLevelOnePhaseCommit(XAResourceRecord.java:
633)
at com.arjuna.ats.arjuna.coordinator.BasicAction.onePhaseCommit(BasicAction.java:2619)
at com.arjuna.ats.arjuna.coordinator.BasicAction.End(BasicAction.java:1779)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:88)
at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java
:1389)
at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135)
at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87)
at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:140)
at org.jbpm.integration.spi.DeploymentAdaptor.deploy(DeploymentAdaptor.java:69)
at org.jbpm.integration.jboss4.JBPMDeployer.start(JBPMDeployer.java:123)

2009-04-06 15:45:28,855 WARN [org.jboss.resource.connectionmanager.TxConnectionManager] Connection error occured: org.jbo
ss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@8f334b[state=NORMAL mc=org.jboss.resource.adap
ter.jdbc.xa.XAManagedConnection@af1cf6 handles=0 lastUse=1239025528854 permit=false trackByTx=false mcp=org.jboss.resource
.connectionmanager.JBossManagedConnectionPool$OnePool@1851576 context=org.jboss.resource.connectionmanager.InternalManaged
ConnectionPool@442c19 xaResource=org.jboss.resource.connectionmanager.xa.JcaXAResourceWrapper@170bdbc txSync=null]
javax.transaction.xa.XAException
at oracle.jdbc.xa.OracleXAResource.allowGlobalTxnModeOnly(OracleXAResource.java:912)

2009-04-06 15:45:28,856 WARN [com.arjuna.ats.jta.logging.loggerI18N] [com.arjuna.ats.internal.jta.resources.arjunacore.op
cerror] [com.arjuna.ats.internal.jta.resources.arjunacore.opcerror] XAResourceRecord.commit_one_phase caught: java.lang.Il
legalMonitorStateException