I switched from 1.0.1.SP2 to 1.2.0.Beta2 and now my test application does not deploy any more:

08:50:29,395 WARN [JmsActivation] Failure in jms activation org.jboss.resource.adapter.jms.inflow.JmsActivationSpec@16068c9(ra=org.jboss.resource.adapter.jms.JmsResourceAdapter@1573872 destination=/queue/testQueue isTopic=false tx=true durable=false reconnect=10 provider=java:/DefaultJMSProvider user=null maxMessages=1 minSession=20 maxSession=20 keepAlive=60000 useDLQ=true DLQHandler=org.jboss.resource.adapter.jms.inflow.dlq.GenericDLQHandler DLQJndiName=queue/DLQ DLQUser=null DLQMaxResent=10000)
java.lang.ClassCastException: org.jboss.jms.client.container.FailoverValveInterceptor cannot be cast to org.jboss.aop.advice.Interceptor
 at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:116)
 at org.jboss.jms.client.delegate.ClientConnectionDelegate$setExceptionListener_8089029433030319178.invokeNext(ClientConnectionDelegate$setExceptionListener_8089029433030319178.java)
 at org.jboss.jms.client.container.ClientLogInterceptor.invoke(ClientLogInterceptor.java:107)
 at org.jboss.jms.client.delegate.ClientConnectionDelegate$setExceptionListener_8089029433030319178.invokeNext(ClientConnectionDelegate$setExceptionListener_8089029433030319178.java)
 at org.jboss.jms.client.delegate.ClientConnectionDelegate.setExceptionListener(ClientConnectionDelegate.java)
 at org.jboss.jms.client.JBossConnection.setExceptionListener(JBossConnection.java:117)
 at org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setupDLQConnection(AbstractDLQHandler.java:140)
 at org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setup(AbstractDLQHandler.java:83)
 at org.jboss.resource.adapter.jms.inflow.dlq.JBossMQDLQHandler.setup(JBossMQDLQHandler.java:48)
 at org.jboss.resource.adapter.jms.inflow.JmsActivation.setupDLQ(JmsActivation.java:359)
 at org.jboss.resource.adapter.jms.inflow.JmsActivation.setup(JmsActivation.java:305)
 at org.jboss.resource.adapter.jms.inflow.JmsActivation$SetupActivation.run(JmsActivation.java:589)
 at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)
 at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:275)
 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
 at java.lang.Thread.run(Thread.java:619)

The problem seems to be a class cast exception with the aop:

java.lang.ClassCastException: org.jboss.jms.client.container.FailoverValveInterceptor cannot be cast
 to org.jboss.aop.advice.Interceptor

Everything worked fine with 1.0.1.SP2 (JBoss 4.0.5GA with EJB3, JBoss Messaging 1.0.1.SP2 standard installation, jboss-messaging.jar from the jbossesb.sar copied to the lib directory of the server)

The test application is just a jar containing one MDB (very similar to the sample bean in the samples)

Best regards!