PH55317: WMQMESSAGINGCLIENT-3.0 FEATURE IN WEBSPHERE LIBERTY PROFILE THROWS JAVA.LANG.CLASSNOTFOUNDEXCEPTION:

APAR status

• Closed as program error.

Error description

• The wmqMessagingClient-3.0 provides applications with access
  to message destinations hosted on IBM MQ through the Jakarta
  Messaging 3.0 API.  Initialization of the Jakarta MQ Resource
  Adapter fails when used in conjunction with the
  wmqMessagingClient-3.0 feature, generating a
  ClassNotFoundException.  A representative callstack is shown
  below:
  
  [23/06/2023, 11:52:06:404 BST] 00000045
  LogService-88-com.ibm.ws.jca.jakarta                         E
  CWWKE0701E: bundle
  com.ibm.ws.jca.jakarta:1.0.75.cl230320230319-1900
  (88)[com.ibm.ws.jca.internal.BootstrapContextImpl(231)] : The
  activate method has thrown an exception
  java.lang.ClassNotFoundException:
  com.ibm.mq.connector.ResourceAdapterImpl
  	at
  com.ibm.ws.classloading.internal.AppClassLoader.findClassCommonL
  ibraryClassLoaders(AppClassLoader.java:736)
  	at
  com.ibm.ws.classloading.internal.AppClassLoader.findClass(AppCla
  ssLoader.java:321)
  	at
  com.ibm.ws.classloading.internal.AppClassLoader.findOrDelegateLo
  adClass(AppClassLoader.java:708)
  	at
  com.ibm.ws.classloading.internal.AppClassLoader.loadClass(AppCla
  ssLoader.java:580)
  	at
  com.ibm.ws.classloading.internal.AppClassLoader.loadClass(AppCla
  ssLoader.java:547)
  	at
  java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:1074)
  	at
  com.ibm.ws.kernel.service.util.SecureAction.loadClass(SecureActi
  on.java:640)
  	at
  com.ibm.ws.jca.internal.BootstrapContextImpl.loadClass(Bootstrap
  ContextImpl.java:937)
  	at
  com.ibm.ws.jca.internal.BootstrapContextImpl.configureResourceAd
  apter(BootstrapContextImpl.java:531)
  	at
  com.ibm.ws.jca.internal.BootstrapContextImpl.activate(BootstrapC
  ontextImpl.java:326)
  ...
  	at
  org.apache.felix.scr.impl.manager.SingleComponentManager.getServ
  ice(SingleComponentManager.java:920)
  ...
  	at
  com.ibm.wsspi.kernel.service.utils.AtomicServiceReference.getSer
  viceWithException(AtomicServiceReference.java:212)
  	at
  com.ibm.ws.jca.service.EndpointActivationService.activateEndpoin
  t(EndpointActivationService.java:542)
  	at
  com.ibm.ws.ejbcontainer.mdb.internal.MessageEndpointFactoryImpl.
  activateEndpointInternal(MessageEndpointFactoryImpl.java:208)
  	at
  com.ibm.ws.ejbcontainer.mdb.internal.MDBRuntimeImpl.activateEndp
  ointInternal(MDBRuntimeImpl.java:960)
  	at
  com.ibm.ws.ejbcontainer.mdb.internal.MDBRuntimeImpl.activateEndp
  oint(MDBRuntimeImpl.java:882)
  	at
  com.ibm.ws.ejbcontainer.mdb.internal.MessageEndpointFactoryImpl.
  activateEndpoint(MessageEndpointFactoryImpl.java:145)
  	at
  com.ibm.ws.ejbcontainer.osgi.internal.EJBRuntimeImpl.startMDBs(E
  JBRuntimeImpl.java:1012)
  ...
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of the WebSphere Liberty              *
  *                  wmqMessagingClient-3.0 Feature              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Using the wmqMessagingClient-3.0        *
  *                      feature results in a                    *
  *                      ClassNotFoundException                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The wmqMessagingClient-3.0 feature references internal MQ
  classes by name.  When the Jakarta version of the MQ Resource
  Adapter was relased, some of the fully qualified package names
  used by MQ for its internal classes had changed.  Consequently
  the feature attempted to load classes using the incorrect
  names resulting in a ClassNotFoundException.
  

Problem conclusion

• The wmqMessagingClient-3.0 feature was modified to use the
  correct fully qualified class names for the internal MQ classes.
  
  The fix for this APAR is targeted for inclusion in fix pack
  23.0.0.6. For more information, see 'Recommended Updates for
  WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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

  LIBERTY PROF -

• Fixed component ID

  5655W6514

Applicable component levels