title: MQ Failure to send message - MQJE046: Unsupported codeset
body: <p>I'm using MQ v. 6.x.
  Usually i can send and receive messages just fine. However, for some messages I get a 'MQJE046: Unsupported codeset' exception.
  It seeme to be related to size, as i could reproduce the issue with message made of chars 0-9 in length greater then 32218 bytes.</p>
  
  <pre><code>    javax.jms.JMSException: MQJMS1016: an internal error has occurred. Please contact your system administrator. Detail: com.ibm.mqservices.MQInternalException: MQJE001: An MQException occurred: Completion Code 2, Reason 2195
      MQJE046: Unsupported codeset : 0
                      at com.ibm.mq.jms.services.ConfigEnvironment.newException(ConfigEnvironment.java:586)
                      at com.ibm.mq.jms.MQMessageProducer.sendInternal(MQMessageProducer.java:1693)
                      at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProducer.java:1056)
  </code></pre>