PM39356: EXCEPTION ADDING SERVLET MAPPING: MAPPING CLASH SERVLETWRAPPER REPORTED IN SYSTEMOUT.LOG WHEN NO SEVERE ERROR HAS OCCURED

APAR status

• Closed as program error.

Error description

• When an SCA composite has a component using both binding.http
  and binding.atom, the internally generated web application for
  each binding uses the same context root. This will cause the
  following error to be logged in SystemOut.log even though
  there is no severe error. The application generated for the
  first binding functions properly for the other bindings.
  
  SCAWebExtensi E  Exception adding
  servlet mapping: Mapping
  clash for ServletWrapper[TuscanyBindingServletWrapper:null]:
  Target ServletWrapper[TuscanyBindingServletWrapper:null]
  already exists at node /
  
  or
  
  HTTPExtension E   Exception adding servlet mapping: Mapping
  clash for ServletWrapper[TuscanyBindingServletWrapper:null]:
  Target ServletWrapper[TuscanyBindingServletWrapper:null]
  already exists at node /
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All IBM WebSphere Application Server v7     *
  *                  Feature Pack for Service Component          *
  *                  Architecture (SCA) users.                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: "Exception adding servlet mapping"      *
  *                      logged in SystemOut.log when no         *
  *                      severe error has occurred.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Service Component Architecture (SCA) applications using
  binding.http and binding.atom utilize an application
  dynamically generated at deploy time. When an
  SCA component contains both binding.http and binding.atom,
   the internally generated web application for each binding
  uses the same context root and results in the following
  exception:
  
  SCAWebExtensi E   Exception adding servlet mapping: Mapping
  clash for ServletWrapper[TuscanyBindingServletWrapper:null]:
  Target ServletWrapper[TuscanyBindingServletWrapper:null]
  already exists at node /
  
  Even though the second application failed to register
  properly, the application generated for the first binding
  functions properly for the other bindings.
  

Problem conclusion

• The code was updated to log the error in FFDC logs instead of
  SystemOut.log. If the application is running as expected, the
  FFDC log entry can safely be ignored.
  
  The fix for APAR PM39356 is currently targeted for inclusion in
  fix pack 1.0.1.13. Please refer to the Recommended Updates page
  for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  
  The fix for this issue will be delivered via APAR PM39649 for
  WebSphere Application Server v8.
  

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:

  PM39649

Fix information

• Fixed component name

  WAS SCA FEATURE

• Fixed component ID

  5724J0854

Applicable component levels

• R700 PSY

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