PM50111: THE RESPONSE IS FLUSHED ON THE WAY OUT OF HANDLING THE SERVLET BUT THE SERVLET HAS ALREADY CLOSED THE STREAM.

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 customer application filter does not work on WebSphere
  Application Server Version 8.0 while it works fine on previous
  releases.
  
  Seeing this error
  [9/19/11 15:59:27:200 GMT+05:30] 00000027 webapp        E
  com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E:
  [Servlet Error]-[xxxx]: java.io.IOException:
  xxxxx - Cannot flush a closed output stream
  

Local fix

• When the compression filters are commented in the web.xml
  file, then the desired page is getting displayed properly.
  
  But customer need to use the compression filters for security
  reasons.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.0                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: The server is calling flush on the      *
  *                      OutputStream which is already closed    *
  *                      by the application.                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An application resource has committed the wrapped response and
  further closed the OutputStream, but the server is calling
  flush() on the response while exiting the handling of the
  servlet which is causing the SRVE0293E error to be
  thrown.
  

Problem conclusion

• The WebContainer code has been updated to not call the failing
  flush() if the OutputStream is closed.
  
  The new webcontainer custom property can be added,
  com.ibm.ws.webcontainer.invokeFlushAfterService = false
  (default=true)
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.3.  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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R800 PSY

     UP