IC64572: RESTART OF LOTUS EXPEDITOR INTEGRATOR IN A WMQ V7.0.1.0 ENVIRONMENT RESULTS IN A JAVA.LANG.CLASSCIRCULARITYERROR

WebSphere MQ V7.0 Fix Pack 7.0.1.2
WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.2

APAR status

• Closed as program error.

Error description

• The micro broker component of Lotus Expeditor uses WebSphere MQ
  (WMQ) Java Message Service (JMS) to connect to the WMQ server.
  Upon restart of the Lotus Expeditor Integrator, an exception is
  generated:
  java.lang.ClassCircularityError
  .
  The generated stack trace is:
  <extendedDataElements
  name="CommonBaseEventLogRecord:Exception"type="string">
  <values>org.osgi.framework.BundleException: Exception in
  com.ibm.msg.client.osgi.jms.Activator.start() of bundle
  com.ibm.msg.client.osgi.jms.
  at
  org.eclipse.osgi.framework.internal.core.BundleContextImpl.
  startActivator(Unknown Source)
  at
  org.eclipse.osgi.framework.internal.core.BundleContextImpl.
  start(Unknown Source)
  at
  ...
  ...
  org.eclipse.osgi.framework.eventmgr.EventManager$Event
  Thread.run(Unknown Source)
  Caused by:
  java.lang.ClassCircularityError
  at
  org.eclipse.osgi.baseadaptor.loader.ClasspathManager.
  defineClass(Unknown Source)
  at
  org.eclipse.osgi.baseadaptor.loader.ClasspathManager.
  findClassImpl(Unknown Source)
  at
  ...
  ...
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of Lotus Expeditor micro broker with WebSphere MQ 7.0.1.0
  JMS bundles
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows) +Java
  ****************************************************************
  PROBLEM SUMMARY:
  The WMQ JMS Client Activator preloaded bundles to ensure that
  the J2SE commonservices bundle was registered in case of a race
  condition.
  This preloading of classes could lead to a class being loaded
  as its own superclass and hence leading to the
  java.lang.ClassCircularityError.
  

Problem conclusion

• The preloading of classes in the WMQ JMS Client Activator has
  been removed to alleviate the ClassCircularityError.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.0
  Platform           Fix Pack 7.0.1.2
  --------           --------------------
  Windows            U200316
  AIX                U829807
  HP-UX (PA-RISC)    U829678
  HP-UX (Itanium)    U829681
  Solaris (SPARC)    U829806
  Solaris (x86-64)   U829680
  iSeries            tbc_p700_0_1_2
  Linux (x86)        U829677
  Linux (x86-64)     U829676
  Linux (zSeries)    U829682
  Linux (Power)      U829679
  
  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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