PM48052: JSPWRITER HANDLED INCORRECTLY IN CASE OF TAG NESTING.

8.0.0.2: WebSphere Application Server V8.0 Fix Pack 2
8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15

APAR status

• Closed as program error.

Error description

• The JavaServer Page (JSP) generates code that fetches the JSP
  writer before doStartTag and doEndTag are called.  If the
  doStartTag method pushes a new writer or doEndTag method pops
  a writer,the fetched writer is not updated and subsequently
  markup is written to the incorrect writer.
  
  Sample:
  
  JSP code:
  
  <t:test name="div">
  This is some sample text
  </t:test>
  
  where t:test is a custom tag. In doStartTag this tag does a
  pageContext.pushBody(writer); to redirect the body to a custom
  writer and calls pageContext.popBody(); in doEndTag.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Version    *
  *                  8.0 users of JavaServer Pages (JSPs).       *
  ****************************************************************
  * PROBLEM DESCRIPTION: The JSP container fetches the           *
  *                      JspWriter before doStartTag() and       *
  *                      doEndTag() are called.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Since the JSP container fetches the JspWriter for a tag before
  doStartTag() is called, if doStartTag() does a
  pageContext.pushBody(writer) then the output of the tag will
  be written to the wrong JspWriter.   The same holds true when
  doEndTag() does a pageContext.popBody().
  

Problem conclusion

• The JSP container was updated to fetch a tag's JspWriter after
  doStartTag() is called and again after doEndTag() is called.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.2.  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:

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

Fix information

• Fixed component name

  WAS EXPRESS

• Fixed component ID

  5724I6300

Applicable component levels

• R800 PSY

     UP