same behavior on BasicXARecoveryTest::testNonPersistent & testNonPersistentMultipleIDs The XAException is caused by the same NPE. All the tests in XALargeMessageMultiThreadFailoverTest fails too when libaio is not installed: | java.lang.Exception: Exception on thread Thread[Thread-5,5,] | at org.jboss.messaging.tests.integration.cluster.failover.MultiThreadFailoverSupport.runMultipleThreadsFailoverTest(MultiThreadFailoverSupport.java:169) | at org.jboss.messaging.tests.integration.cluster.failover.XAMultiThreadRandomFailoverTest.runTestMultipleThreads(XAMultiThreadRandomFailoverTest.java:670) | at org.jboss.messaging.tests.integration.cluster.failover.XAMultiThreadRandomFailoverTest.testC(XAMultiThreadRandomFailoverTest.java:107) | Caused by: javax.transaction.xa.XAException | at org.jboss.messaging.core.client.impl.ClientSessionImpl.commit(ClientSessionImpl.java:820) | at org.jboss.messaging.tests.integration.cluster.failover.XAMultiThreadRandomFailoverTest.transactionallySendMessages(XAMultiThreadRandomFailoverTest.java:544) | at org.jboss.messaging.tests.integration.cluster.failover.XAMultiThreadRandomFailoverTest.doTestC(XAMultiThreadRandomFailoverTest.java:186) | at org.jboss.messaging.tests.integration.cluster.failover.XAMultiThreadRandomFailoverTest$1.run(XAMultiThreadRandomFailoverTest.java:112) | at org.jboss.messaging.tests.integration.cluster.failover.MultiThreadFailoverSupport$1Runner.run(MultiThreadFailoverSupport.java:135) | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4241927#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...