PI29003: SETTING MEMORY-TO-MEMORY REPLICATION FAILS WITH NULLPOINTEREXCEPTION

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

• Attempting to set up Memory-to-memory replication from the
  console fails with java.lang.NullPointerException
   -
  The DMGR systemout.log shows:
   ServletWrappe E
  com.ibm.ws.webcontainer.servlet.ServletWrapper service
  SRVE0068E: An exception was thrown by one of the service
  methods of the servlet
   [/secure/layouts/dynamicSelectionLayout.jsp] in application
  [isclite].
  Exception created : [java.lang.NullPointerException
      at _ibmjsp.secure.layouts._dynamicSelectionLayout.
          _jspService(_dynamicSelec tionLayout.java:1111)
      at com.ibm.ws.jsp.runtime.HttpJspBase.service
           (HttpJspBase.java:99)
      at javax.servlet.http.HttpServlet.service
           (HttpServlet.java:668)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.service
           (ServletWrapper.ja va:1235)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.
          handleRequest(ServletWrap per.java:779)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.
            handleRequest(ServletWrap per.java:478)
      at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.
           handleRequest(Servlet WrapperImpl.java:178)
              ...
  These are the steps for recreating the issue:
  1. Log in to WebSphere Integrated Solutions Console.
  2. Select Applications > Application Types > WebSphere
       enterpriseapplications.
  3. Select <Application Name>.
  4. Select Session Management.
  5. Select Distributed environment settings.
  6. Select Memory-to-memory replication link.
  7. Select New...
  8. Enter "Replication" into Name and select "Entire Domain"
       radio button.
  9. Select OK.
  10. Select Distributed environment settings on the navigation
  breadcrumb.
  11. Select Memory-to-memory replication link.
  
  On the screen after you select memory to memory replication you
  will see a null pointer exception where the replication domain
  you just created should appear in a drop down list:
  [Exception in:/secure/layouts/dynamicSelectionLayout.jsp] null
  

Local fix

• Go into the session management panel from the application.
  Click on enable cookies, and on that panel, click OK.   Then
  you can go into the memory-to-memory replication panel without
  getting the exception.
   -
  Keywords: admin console M2M Null pointer execption NPE
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server using the administrative console to  *
  *                  manage memory-to-memory replication in      *
  *                  session management.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: The console throws a Null Pointer       *
  *                      exception when attempting to display    *
  *                      the memory-to-memory replication        *
  *                      panel.                                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An invalid configuration stanza was written to the
  deployment.xml/server.xml file which caused an exception
  reading other stanzas in the same file.
  

Problem conclusion

• The console was corrected to NOT create an invalid stanza in
  the configuration.
  
  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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP