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Null pointer while creating JMS Message

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Sosed

Posted: Tue Feb 25, 2014 3:49 am Post subject: Null pointer while creating JMS Message

Apprentice

Joined: 24 Aug 2012
Posts: 43

Hello.

I use WMB 8.0.0.2 on RHEL.
WMQ is 7.5.0.0.

I encountered an error at JMSOutputNode:

Code:

RecoverableException
File:CHARACTER:/build/slot1/S800_P/src/DataFlowEngine/PluginInterface/ImbJniNode.cpp
Line:INTEGER:1267
Function:CHARACTER:ImbJniNode::evaluate
Type:CHARACTER:ComIbmJMSClientOutputNode
Name:CHARACTER:<flow name>#FCMComposite_1_14.<subflow name>#FCMComposite_1_3
Label:CHARACTER:<flow name>.JMSOutput
Catalog:CHARACTER:BIPmsgs
Severity:INTEGER:3
Number:INTEGER:2230
Text:CHARACTER:Caught exception and rethrowing
RecoverableException
      File:CHARACTER:JMSClientErrors.java
      Line:INTEGER:694
      Function:CHARACTER:JMSClientOutputNode::createOutputMessage()
      Type:CHARACTER:
      Name:CHARACTER:
      Label:CHARACTER:
      Catalog:CHARACTER:BIPmsgs
      Severity:INTEGER:3
      Number:INTEGER:4362
      Text:CHARACTER:Null pointer while creating JMS Message
      Insert
            Type:INTEGER:5
            Text:CHARACTER:Broker '<value>'; Execution Group '<value>'; Message Flow '<value>'; Node 'JMSOutput::ComIbmJMSClientOutputNode' Exception Message ' '; Exception Stack 'java.lang.NullPointerException at com.ibm.broker.jmsclientnodes.JMSClientMessageFormatterMbToJms.createJMSMessage(JMSClientMessageFormatterMbToJms.java:753) at com.ibm.broker.jmsclientnodes.JMSClientOutputNode.createOutputMessage(JMSClientOutputNode.java:967) at com.ibm.broker.jmsclientnodes.JMSClientOutputNode.evaluate(JMSClientOutputNode.java:467) at com.ibm.broker.plugin.MbNode.evaluate(MbNode.java:1480) at com.ibm.broker.plugin.MbOutputTerminal._propagate(Native Method) at com.ibm.broker.plugin.MbOutputTerminal.propagate(MbOutputTerminal.java:133) at com.ibm.broker.plugin.MbOutputTerminal.propagate(MbOutputTerminal.java:88) at com.ibm.broker.transportheadernodes.jms.JMSHeaderNode.evaluate(JMSHeaderNode.java:254) at com.ibm.broker.plugin.MbNode.evaluate(MbNode.java:1480) '
      Insert
            Type:INTEGER:5
            Text:CHARACTER:

My message flow is:

Quote:

Timeout Notification (creates message once a day) -> ESQL node (create message body in XMLNSC domain) -> JMS Header node (JMS Header option = "Add header") -> ESQL node (fill up log info at Application_Properties) and propagating to log and out terminals ->(to log terminal)-> JMS Output node (sends messages to log queue) -> returns to ESQL and propagate message to out terminal ->(to out terminal)-> JMS Output node (sends messages to destination)

Error comes out at first JMSOutput node.

My JMS Header is:

Code:

JMSTransport
Transport_Folders
      Message_MetaData
            PayloadType
                  CHARACTER:jms_text
            MessagePersistence
                  CHARACTER:Non_Persistent
      Header_Values
            JMSDestination
                  CHARACTER:
            JMSDeliveryMode
                  dt:CHARACTER:i4
                  INTEGER:2
            JMSExpiration
                  dt:CHARACTER:r8
                  INTEGER:0
            JMSPriority
                  dt:CHARACTER:i4
                  INTEGER:4
            JMSTimestamp
                  dt:CHARACTER:i8
                  INTEGER:1393326709399
            JMSMessageID
                  CHARACTER:222
            JMSCorrelationID
                  CHARACTER:0000000000000000
            JMSReplyTo
                  CHARACTER:
            JMSType
                  CHARACTER:
            JMSRedelivered
                  dt:CHARACTER:boolean
                  INTEGER:1
      Application_Properties
            EventDate
                  CHARACTER:2014-02-25 15:11:50.697149
            OperationId
                  CHARACTER:9db9f5c2-9e0d-11e3-b27c-0a2082870000
            RequestId
                  CHARACTER:9db9f16c-9e0d-11e3-b27c-0a2082870000
            Type
                  CHARACTER:REQUEST
      JMS_Provider_Properties
      Standard_Properties

Have I missed any mandatory property at JMS Header?
can any one help to resolve this?

Thank in advance.

mqsiuser

Posted: Tue Feb 25, 2014 4:31 am Post subject: Re: Null pointer while creating JMS Message

Yatiri

Joined: 15 Apr 2008
Posts: 637
Location: Germany

I know of the rule, that there shouldn't be null pointer exceptions (in Java) in production code.

So it's probably something IBM could have a look into... on how to fix it and change the exception text into something more meaningful.

Elsewise it is very likely that you are leaving a (mandatory) field empty.

To fix it, you may (just for testing) fill in all fields you see (and which are empty), then test "if fixed" and then try to focus down (onto the values actually needed).

enjoy (JMS)
_________________
Just use REFERENCEs

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