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Modifying message before rolling back transaction

 
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Hi,
I have a requirement where error information needs to be added to a message in case if there are any error in message processing .
In case of errors I am rolling back the transaction and understand that due to this the message cannot be modified .
so I tried to make the changes in the message in a method which has transaction attribute as NOT_SUPPORTED , as this should suspend the transaction
and allow changes in the message .
However I get below exception while trying to do this .

javax.jms.MessageNotWriteableException: MQJMS0008: JMS Client attempts to write a read-only message
at com.ibm.jms.JMSMessage.newMessageNotWriteableException(JMSMessage.java:5055)
at com.ibm.jms.JMSMessage.setStringProperty(JMSMessage.java:6148)
at com.bskyb.finance.api.EJB.mdbs.APIFFMessageRouterMDBBean.updateHeaderAttributes(APIFFMessageRouterMDBBean.java:159)
at com.bskyb.finance.api.EJB.mdbs.APIFFMessageRouterMDBBean.onMessage(APIFFMessageRouterMDBBean.java:121)
at com.ibm.ejs.jms.listener.MDBWrapper$PriviledgedOnMessage.run(MDBWrapper.java:302)
at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:63)
at com.ibm.ejs.jms.listener.MDBWrapper.callOnMessage(MDBWrapper.java:271)
at com.ibm.ejs.jms.listener.MDBWrapper.onMessage(MDBWrapper.java:240)
at com.ibm.mq.jms.MQSession.run(MQSession.java:1695)
at com.ibm.ejs.jms.JMSSessionHandle.run(JMSSessionHandle.java:975)
at com.ibm.ejs.jms.listener.ServerSession.connectionConsumerOnMessage(ServerSession.java:987)
at com.ibm.ejs.jms.listener.ServerSession.onMessage(ServerSession.java:675)
at com.ibm.ejs.jms.listener.ServerSession.dispatch(ServerSession.java:642)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.ibm.ejs.jms.listener.ServerSessionDispatcher.dispatch(ServerSessionDispatcher.java:37)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:96)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:132)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:500)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1497)

I could not figure out any property named readOnly in ByteMessage , not sure if the approach I have taken is correct , may be I have missed some
basic stuff .
Please help .

Thanks and Regards,
Chiku
 
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