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MQSeries.net Forum Index » IBM MQ Java / JMS » Exception at onMessage in MDB

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prasannal
PostPosted: Wed Nov 19, 2003 4:08 am    Post subject: Exception at onMessage in MDB Reply with quote

Apprentice

Joined: 04 Aug 2003
Posts: 44
Hi,
I am getting ClassCastException at onMessage method in MDB.
Exception detail says: com.ibm.jms.JMSNullMessage

What should be the reason?
Pls let me know ASAP.
Thanks.
Pras
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bower5932
PostPosted: Wed Nov 19, 2003 6:33 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
Could be a bug. What version of MQ are you running (use mqver)? Is this embedded JMS or full MQ? Can you put the top part of the stack trace here?
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jefflowrey
PostPosted: Wed Nov 19, 2003 6:35 am    Post subject: Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981
Are you workiing in WebSphere Application Server (presumably version 5, since v4 and earlier don't support MDBs)? Or something else?

Can we see the actual code that throws the error?
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