PM98238: INCONSISTENT RESOLUTION OF THE VARIABLES IN F:AJAX@LISTENER METHODEXPRESSIONS

8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
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

• An inconsistent resolution of the variables in
  f:ajax@listener MethodExpressions is observed while resolution
  of the same variables in a h:commandLink@action
  MethodExpression and a ValueExpression worked as expected.
  Generally, it occurs:
  
  1. If the f:ajax tag occurs in a JavaServer Faces(JSF) page
  below a ui:include AND
  2. If a name referred to in the listener MethodExpression is
  redefined by a ui:param passed to said ui:include.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server version    *
  *                  8.5.5 Liberty Profile users of JavaServer   *
  *                  Faces(JSF) MyFaces.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Variable resolution in a <f:ajax/>      *
  *                      listener attribute can be               *
  *                      inconsistent.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a <f:ajax/> tag occurs in a JSF page below a
  <ui:include/> tag and the name referred to in the listener
  MethodExpression is redefined by a <ui:param/> in the
  <ui:include/>  the variable could be resolved incorrectly.
  

Problem conclusion

• The following fix was pulled into WebSphere Application Server
  from the Apache MyFaces Open Source Community to resolve this
  problem:
  1) https://issues.apache.org/jira/browse/MYFACES-3246
  
  To enable the new bahavior the following context parameter
  needs to be set to "true" in the web.xml of the application:
  
  com.ibm.ws.jsf.updateFaceletContextKey(true/false - default)
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.2.  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:

  PM92784

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  LIBERTY PROFILE

• Fixed component ID

  5724J0814

Applicable component levels

• R850 PSY

     UP