My MDB does't work in singleton mod on cluster. Help me.

[dreyk]

I write siple MDB Bean. It's catch message and print this message.

My OnMessage function is:
Code:
public void onMessage(Message msg) {
TextMessage tm = (TextMessage) msg;
try
{
System.out.println("onMessageMDB, recv text="
+ tm.getText());
}
catch(Throwable t)
{
t.printStackTrace();
}
}


ejb-jar:
Code:
<ejb-jar>
<enterprise-beans>
<message-driven>
<display-name>Enterprise1</display-name>
<ejb-name>MyMDB</ejb-name>
<ejb-class>testcluster.MyMDBBean</ejb-class>
<transaction-type>Bean</transaction-type>
<acknowledge-mode>Auto-acknowledge</acknowledge-mode>
<message-driven-destination>
<destination-type>javax.jms.Queue</destination-type>
</message-driven-destination>
</message-driven>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>

<ejb-name>MyMDB</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>



jboss.xml is:
Code:

<enterprise-beans>
<message-driven>
<configuration-name>Singleton Message Driven Bean</configuration-name>
<ejb-name>MyMDB</ejb-name>
<destination-jndi-name>queue/testQueue</destination-jndi-name>
</message-driven>
</enterprise-beans>



Then I send message to Queue MDB work fine, catch message and print it.
But after some time i catch exceptin in my jboss log file
Code:
15:21:03,765 ERROR [DLQHandler] Stopping failed DLQHandler
org.jboss.mq.SpyJMSException: Cannot disable the connection with the JMS server;
- nested throwable: (java.io.IOException: Client is not connected)
at org.jboss.mq.Connection.doStop(Connection.java:1289)
at org.jboss.mq.Connection.stop(Connection.java:718)
at org.jboss.ejb.plugins.jms.DLQHandler.stopService(DLQHandler.java:184)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStop(ServiceMBeanSu
pport.java:319)
at org.jboss.system.ServiceMBeanSupport.stop(ServiceMBeanSupport.java:18
2)
at org.jboss.system.ServiceMBeanSupport.jbossInternalDestroy(ServiceMBea
nSupport.java:355)
at org.jboss.system.ServiceMBeanSupport.destroy(ServiceMBeanSupport.java
:197)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker.destroyService(JMSConta
inerInvoker.java:894)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker$ExceptionListenerImpl.o
nException(JMSContainerInvoker.java:1271)
at org.jboss.mq.Connection.asynchFailure(Connection.java:446)
at org.jboss.mq.il.uil2.UILClientILService.asynchFailure(UILClientILServ
ice.java:145)
at org.jboss.mq.il.uil2.SocketManager$ReadTask.handleStop(SocketManager.
java:400)
at org.jboss.mq.il.uil2.SocketManager$ReadTask.run(SocketManager.java:33
2)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.io.IOException: Client is not connected
at org.jboss.mq.il.uil2.SocketManager.internalSendMessage(SocketManager.
java:226)
at org.jboss.mq.il.uil2.SocketManager.sendMessage(SocketManager.java:192
)
at org.jboss.mq.il.uil2.UILServerIL.setEnabled(UILServerIL.java:162)
at org.jboss.mq.Connection.doStop(Connection.java:1285)
... 13 more
15:21:03,796 INFO [JMSContainerInvoker] Reconnected to JMS provider



And that exception apperance pereodicali after first invocation my MDB.
I use JBoss 4.0RC2 in all configuration and Win2K. May be i need special configuration for Jboss?.