PI34797: A CWWKG0074E error message might be unnecessarily generated when certain server.xml elements are not properly configured.

8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• When the server.xml file has configuration elements with
  reference attributes or sub-elements that result in a
  cardinality violation, a  CWWKG0074E error message might be
  generated instead of using the default value of that
  attribute or sub-element. Additionally, the CWWKG0083W
  warning message might not adequately describe the validation
  failure and subsequent use of the default value of the
  reference attribute or sub-element.
  
  Example improper configuration with a cardinality violation
  in the server.xml file:
      <managedExecutorService id="myMES1">
          <contextService id="foo" />
          <contextService id="bar" />
      </managedExecutorService>
  
  Example console messages:
  [WARNING ] CWWKG0083W: A validation failure occurred while
  processing the [contextService.target] property, value =
  [[(service.pid=${contextServiceRef})]]. Default value in
  use: [(service.pid=${contextServiceRef})].
  [ERROR   ] CWWKG0074E: Unable to update the configuration
  for managedExecutorService with the unique identifier myMES1
  because of the exception: Variable evaluation loop detected:
  [contextServiceRef].
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Profile                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: A CWWKG0074E error message might be     *
  *                      unnecessarily generated when certain    *
  *                      server.xml elements are not properly    *
  *                      configured.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the server.xml file has configuration elements with
  reference attributes or sub-elements that result in a
  cardinality violation, a CWWKG0074E error message might be
  generated instead of using the default value of that attribute
  or sub-element. Additionally, the CWWKG0083W warning message
  might not adequately describe the validation failure and
  subsequent use of the default value of the reference attribute
  or sub-element.
  
  Example improper configuration with a cardinality violation in
  the server.xml file:
      <managedExecutorService id="myMES1">
      	<contextService id="foo" />
      	<contextService id="bar" />
      </managedExecutorService>
  
  Example console messages:
  [WARNING ] CWWKG0083W: A validation failure occurred while
  processing the [contextService.target] property, value =
  [[(service.pid=${contextServiceRef})]]. Default value in use:
  [(service.pid=${contextServiceRef})].
  [ERROR   ] CWWKG0074E: Unable to update the configuration for
  managedExecutorService with the unique identifier myMES1 because
  of the exception: Variable evaluation loop detected:
  [contextServiceRef].
  
  When processing a configuration property with a cardinality
  violation, a ConfigEvaluatorException might be thrown. In
  certain scenarios, the server would issue the CWWKG0083W warning
  message and attempt to reevaluate the configuration property.
  This second processing resulted in another
  ConfigEvaluatorException and the CWWKG0074E warning message.
  There was a bug in the code which resulted in the immediate
  reevaluation of the property instead of assigning it the default
  value. The bug also ignored exceptions when processing
  properties of each individual configuration attribute in some
  cases.
  

Problem conclusion

• Warning messages are now displayed when processing properties of
  each individual attribute, and these elements are no longer
  processed multiple times. This ensures the default value of a
  reference attribute or sub-element is used if its cardinality is
  violated in the server.xml configuration, and that the correct
  warning message is generated.
  
  Example new message:
  [WARNING ] CWWKG0083W: A validation failure occurred while
  processing the [contextServiceRef] property, value =
  [[com.ibm.ws.config.xml.internal.SimpleElement[managedExecutorSe
  rvice[myMES1]//contextService(contextService)[foo]],
  com.ibm.ws.config.xml.internal.SimpleElement[managedExecutorServ
  ice[myMES1]//contextService(contextService)[bar]]]]. Default
  value in use: [DefaultContextService].
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 8.5.5.5.  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:

Fix information

• Fixed component name

  WAS LIBERTY COR

• Fixed component ID

  5725L2900

Applicable component levels

• R855 PSY

     UP