PM39902: NULLPOINTEREXCEPTION WHEN USING CONTENT TAG IN JSPS

APAR status

• Closed as program error.

Error description

• This regression is encountered when using the tag library to
  render a content document and the WCM_ContentTag is bypassing
  checks added to the code to protect against the parameters that
  could affect rendering (PM23408)(e.g. the parameter that tells
  the rendering engine that we are rendering a component).
  ..
  Therefore the presentation template is null and we see the
  following exception (CF15):
  
  [5/24/11 14:06:03:240 EDT] 00000050 WCM_ContentTa W   Exception
  caught processing request. Cause: null
                                   java.lang.NullPointerException
   at com.presence.connect.data.StreamedTextMime
  .render(StreamedTextMime.java:74)
   at com.aptrix.pluto.renderer.PageRequestProcessor
  .processRequest(PageRequestProcessor.java:124)
   at com.aptrix.pluto.renderer.RendererModule
  .processNonConnectTagCacheableRequest(RendererModule.java:1167)
   at com.aptrix.pluto.renderer.RendererModule
  .processCacheableRequest(RendererModule.java:1081)
   at com.aptrix.pluto.renderer.RendererModule
  .processPageRequest(RendererModule.java:995)
   at com.ibm.workplace.wcm.api.WCM_Workspace.render(WCM_Workspace
  .java:3800)
   at com.ibm.workplace.wcm.api.WCM_ContentTag
  .doStartTag(WCM_ContentTag.java:162) . . .
  
  
  Opened for release 7001
  

Local fix

• The customer can work around this issue by creating a new
  request parameter map and only setting the necessary parameters.
  That is ensue the component name and component id are not set in
  the parameter map.
  

Problem summary

• Problem Summary:
   NullPointerException After CF 38 or higher while rendering a
  JSP that uses the  WCM content tag
  
  Detailed Problem Description:
  After applying wcm cumulative fix cf38 or above customers using
  the content tag:
  
  <wcm:content pageDesign="<%=presentationTemplate%>">
  Error rendering the content <%=presentationTemplate%>
  </wcm:content >
  
  May observe the following NullPointerException:
  
  00000050 WCM_ContentTa W Exception caught processing request.
  Cause: null
  java.lang.NullPointerException
  at com.aptrix.pluto.renderer.PlutoRenderer.render(PlutoRenderer
  .java:140)
  

Problem conclusion

• Problem Analysis:
  This method of rendering in the API was overlooked when fixes
  included in the cumulative fix were made.
  The rendering engine assumes we are trying to render a component
  instead of a content document,
  resulting in the null presentation template.
  
  Problem Solution:
  The code has been updated to ensure the appropriate request
  parameters are maintained.
  
  
  Affected Users:
  All users .
  

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

  WEBSPHERE PORTA

• Fixed component ID

  5724E7600

Applicable component levels

• R61C PSY

     UP

• R610 PSY

     UP

• R615 PSY

     UP

• R700 PSY

     UP