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marshaller in JmsServiceExporter uninitialized due to multi-threading (experienced on Websphere MQ 5.3)

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: 1.0-M1
  • Fix Version/s: 1.0
  • Labels:
    None
  • Environment:
    Websphere MQ 5.3, connectionFactory = com.ibm.mq.jms.MQQueueConnectionFactory; transportType = 1 (TCP/IP, thin java-only client)
  • Number of attachments :
    0

Description

In JmsServiceExporter, following code means that JMSServiceExporter.onMessage can be called in another thread before super.afterProperties initializes the marshaller, leading to "MQJMS1034E MessageListener threw: java.lang.NullPointerException" error

...
// do we have a destination specified, if so consume
if (destination != null)

{ Session session = producer.getSession(); consumer = session.createConsumer(destination); consumer.setMessageListener(this); }

super.afterPropertiesSet();
}

Possible solution may be to call super.afterPropertiesSet() before calling consumer.setMessageListener(this), this seems to be where the thread is being created by Websphere MQ implementation

Activity

james strachan made changes -
Field Original Value New Value
Resolution Fixed [ 1 ]
Status Open [ 1 ] Resolved [ 5 ]
Fix Version/s 1.0 [ 11951 ]

People

  • Assignee:
    Unassigned
    Reporter:
    Justin Rowe
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Dates

  • Created:
    Updated:
    Resolved: