PK48161: WS-RELIABLEMESSAGING CLASSCASTEXCEPTION STRING INCOMPATIBLE WITH JAVA.UTIL.HASHMAP FFDC SEEN ON WEBSERVICE PROVIDER

APAR status

• Closed as program error.

Error description

• When a Messaging Engine is failed over to a different server
  in a cluster the following FFDC may be seen.
  
  Exception = java.lang.ClassCastException
  Source =
  com.ibm.ws.websvcs.transport.http.WASAxis2Servlet.doPost
  probeid = 516
  
  Stack Dump = java.lang.ClassCastException: java.lang.String
  incompatible with java.util.HashMap
  at com.ibm.ws.websvcs.rm.impl.storage.PersistentStorageManagerS
  ingleton$CommandInvoker.retrieveRMDBean(PersistentStorageManage
  rSingleton.java:1161)
  at com.ibm.ws.websvcs.rm.impl.storage.beanmanagers.RMDBeanMgrIm
  pl.retrieve(RMDBeanMgrImpl.java:115)
  at org.apache.sandesha2.handlers.SandeshaGlobalInHandler.proces
  sApplicationMessage(SandeshaGlobalInHandler.java:168)
  at org.apache.sandesha2.handlers.SandeshaGlobalInHandler.invoke
  (SandeshaGlobalInHandler.java:141)
  at org.apache.axis2.engine.Phase.invoke(Phase.java:379)
  at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:25
  3)
  at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:1
  70)
  at org.apache.axis2.transport.http.HTTPTransportUtils.processHT
  TPPostRequest(HTTPTransportUtils.java:271)
  at com.ibm.ws.websvcs.transport.http.WASAxis2Servlet.doPost(WAS
  Axis2Servlet.java:899)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(Servl
  etWrapper.java:989)
  at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest
  (ServletWrapper.java:501)
  at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleReque
  st(ServletWrapper.java:464)
  at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRe
  quest(CacheServletWrapper.java:90)
  at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContai
  ner.java:744)
  at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebCont
  ainer.java:1439)
  at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChanne
  lLink.java:112)
  at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleD
  iscrimination(HttpInboundLink.java:454)
  at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleN
  ewInformation(HttpInboundLink.java:383)
  at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(H
  ttpInboundLink.java:263)
  at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback
  .sendToDiscriminators(NewConnectionInitialReadCallback.java:214
  )
  at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback
  .complete(NewConnectionInitialReadCallback.java:113)
  at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.future
  Completed(AioReadCompletionListener.java:165)
  at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(Abstract
  AsyncFuture.java:217)
  at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(As
  yncChannelFuture.java:161)
  at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
  at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:1
  95)
  at com.ibm.io.async.ResultHandler.runEventProcessingLoop(Result
  Handler.java:743)
  at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
  at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IBM WebSphere Application Server Web     *
  *                 Services Feature Pack users of Web Services  *
  *                 Reliable Messaging.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: WS-ReliableMessaging                    *
  *                      ClassCastException: String incompatible *
  *                      with java.util.HashMap FFDC seen on     *
  *                      WebService provider                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a Messaging Engine is failed over to a different server in
  a cluster the following FFDC may be seen.
  
  Exception = java.lang.ClassCastException
  
  Source =
  
  com.ibm.ws.websvcs.transport.http.WASAxis2Servlet.doPost
  
  probeid = 516
  
  Stack Dump = java.lang.ClassCastException: java.lang.String
  
  incompatible with java.util.HashMap
  

Problem conclusion

• Class  MEStoreConnectionImpl will be updated to handle a String
  return object
  The fix for this APAR is currently targeted for inclusion in
  fixpack 6.1.0.11. Please refer to the recommended updates page
  for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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:

Modules/Macros

• WSRM
  

Fix information

• Fixed component name

  WEBSERVIC FEATU

• Fixed component ID

  5724J0850

Applicable component levels

• R610 PSY

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