IC69949: JAVA APPLICATION FAILS ON MQGET WITH 2080 (MQRC_TRUNCATED_MSG_FAILED)

WebSphere MQ V7.0 Fix Pack 7.0.1.4
WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.4

APAR status

• Closed as program error.

Error description

• When the maxMsgSize on the get method call is equal to the size
  of the message on the queue, a MQRC_TRUNCATED_MSG_FAILED
  (rc=2080) error is seen when receiving the message. Instead the
  message should have been successfully received.
  
  The MQGET fails even though the trace shows that the
  maxMsgLength on the get was set to a value equal to the size of
  the message. The Java trace shows:
  
  19:18:11.105    11                 ----}
  JmqiEnvironment.conditionalCopyMQMD(MQMD,MQMD)() rc=0
  19:18:11.105    11                   readI32(): 2080
  19:18:11.105    11                   ?0x70467046?
  getReasonCode(boolean): 2080
  19:18:11.105    11                   readI32(): 2080
  19:18:11.105    11                   ?0x70467046?
  getReasonCode(boolean): 2080
  19:18:11.105    11                   readI32(): 25600
  

Local fix

• As a workaround set the max message length on the get() method
  to a value higher than the length of the message
  being received. The get method to use is:
  MQQueue.get(MQMessage message,MQGetMessageOptions
  getMessageOptions,int maxMsgSize)
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  This issue affects users of the WebSphere MQ classes for Java V7
  who get messages whilst specifying a maximum message size.
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows) +Java
  ****************************************************************
  PROBLEM SUMMARY:
  When an attempt was made to receive a message whose size was
  equal to the maxMsgSize specified on the following method call:
  
  MQDestination_Object.get(MQMessage message, MQGetMessageOptions
  getMessageOptions, int maxMsgSize)
  
  a MQRC_TRUNCATED_MSG_FAILED was returned. This was because the
  WebSphere MQ Java implementation treated the maxMsgSize to be
  inadequate when it was equal to the size of the message being
  received.
  

Problem conclusion

• The WebSphere MQ Java implementation has been modified to ensure
  that the MQRC_TRUNCATED_MSG_FAILED is not returned when the size
  of the message is equal to the maxMsgSize specified on the get
  method call.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.0
  Platform           Fix Pack 7.0.1.4
  --------           --------------------
  Windows            U200323
  AIX                U835793
  HP-UX (PA-RISC)    U836458
  HP-UX (Itanium)    U836463
  Solaris (SPARC)    U836459
  Solaris (x86-64)   U836465
  iSeries            tbc_p700_0_1_4
  Linux (x86)        U836460
  Linux (x86-64)     U836464
  Linux (zSeries)    U836461
  Linux (Power)      U836462
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available, information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WMQ WINDOWS V7

• Fixed component ID

  5724H7220

Applicable component levels

• R701 PSY

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