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| MDB Failing to Pickup Message, RFH Problem? |
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| Aktavian |
 Posted: Mon Apr 30, 2007 8:56 am Post subject: MDB Failing to Pickup Message, RFH Problem? |
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Newbie
Joined: 13 Mar 2007
Posts: 5
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I was hoping someone might shed some light on this problem. Currently I have a java application which uses Websphere to send/receive message with a mainframe using MQSeries (which is the older name of Websphere MQ I guess).
(1)What's happening is, when I send a JMS message to them, what the mainframe application does is strip the RFH from the original message and echo it back in their MQMessage. This works perfectly fine.
I don't know too much about the Websphere MQ middleware, but I'm assuming it does some kind of conversaion with JMS and MQ messages.
(2) However, the mainframe is suppose to send a message at a later time after we send a message and receive a reply. In this message, there's nothing we need to use the RFH for so we told them not to write/send one.
So in (1), the message structure from the mainfame seems like it should be MQMD-RFH-DATA. In (2), the message structure seems like it should be MQMD-DATA. If this is wrong please correct me.
Now in (1), this works perfect fine. We can receive messages via MDB's. However, in (2), everytime the MDB tries to pick up a message, it throws some really cryptic exception which I'm not able to understand and it just leaves the message in the queue. My question is, is the absence of a RFH in the MQMessage causing a problem with the middleware in term of converting a MQ message back toa JMS message?
Thanks for the help in advance. |
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| teal |
| Posted: Mon Apr 30, 2007 9:13 am Post subject: |
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Acolyte
Joined: 15 Dec 2004
Posts: 66
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| Quote: |
| everytime the MDB tries to pick up a message, it throws some really cryptic exception |
What is this exception. Are you getting the linked MQ exception to get the actual MQ RC?
We can help you much better with this info. |
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| fjb_saper |
| Posted: Mon Apr 30, 2007 9:44 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Are you checking for a ClassCastException?
If the MDB tries to cast the message from Message to TextMessage and the format of the message(MQMD-MQFMT) was not set to MQFMT-STRING you are in trouble...
Enjoy 
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| Aktavian |
| Posted: Mon Apr 30, 2007 10:57 am Post subject: Error Message |
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Newbie
Joined: 13 Mar 2007
Posts: 5
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The error message doesn't really seem to provide any insight of the related problem, but here it is:
[12/30/06 13:56:20:815 CST] 00000018 WorkSpaceMana A WKSP0023I: Workspace configuration consistency check is enabled.
[12/30/06 13:56:25:294 CST] 0000003b ServerSession W WMSG0031E: Exception processing JMS Message for MDB ProxyExecutionMdb, JMSDestination jms/BLOCKORDEREXEC_INPUT : java.lang.StringIndexOutOfBoundsException: String index out of range: 808464473
at java.lang.String.checkBounds(String.java(Compiled Code))
at java.lang.String.<init>(String.java(Compiled Code))
at com.ibm.mq.jms.MQJMSMessage.createJMSMessage(MQJMSMessage.java:427)
at com.ibm.mq.jms.MQSession.consume(MQSession.java:3060)
at com.ibm.mq.jms.MQSession.run(MQSession.java:1612)
at com.ibm.ejs.jms.JMSSessionHandle.run(JMSSessionHandle.java:960)
at com.ibm.ejs.jms.listener.ServerSession.connectionConsumerOnMessage(ServerSession.java:813)
at com.ibm.ejs.jms.listener.ServerSession.onMessage(ServerSession.java:614)
at com.ibm.ejs.jms.listener.ServerSession.dispatch(ServerSession.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:5
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at com.ibm.ejs.jms.listener.ServerSessionDispatcher.dispatch(ServerSessionDispatcher.java:37)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:91)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:456)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1332)
[12/30/06 13:56:25:304 CST] 0000003b ExceptionUtil E CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method "onMessage" on bean "BeanId(Phase3Proxy#ProxyEJB.jar#ProxyExecutionMdb, null)". Exception data: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:5
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at com.ibm.ejs.jms.listener.ServerSessionDispatcher.dispatch(ServerSessionDispatcher.java:37)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:91)
at com.ibm.ejs.container.MDBWrapper.onMessage(MDBWrapper.java:127)
at com.ibm.ejs.jms.listener.ServerSession.run(ServerSession.java:456)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1332)
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 808464473
at java.lang.String.checkBounds(String.java(Compiled Code))
at java.lang.String.<init>(String.java(Compiled Code))
at com.ibm.mq.jms.MQJMSMessage.createJMSMessage(MQJMSMessage.java:427)
at com.ibm.mq.jms.MQSession.consume(MQSession.java:3060)
at com.ibm.mq.jms.MQSession.run(MQSession.java:1612)
at com.ibm.ejs.jms.JMSSessionHandle.run(JMSSessionHandle.java:960)
at com.ibm.ejs.jms.listener.ServerSession.connectionConsumerOnMessage(ServerSession.java:813)
at com.ibm.ejs.jms.listener.ServerSession.onMessage(ServerSession.java:614)
at com.ibm.ejs.jms.listener.ServerSession.dispatch(ServerSession.java:581)
... 10 more |
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| fjb_saper |
| Posted: Tue May 01, 2007 8:01 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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You have an IndexOutOfBoundsException....
So what are you triying to do with an index. Is it 0 or 1 based?
Enjoy
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