PH39923: NPE IN JSPBATCHCOMPILER.SH

APAR status

• Closed as program error.

Error description

• output shows:
  JspBatchCBase.getServerLibraryPaths()  about to call
  getClassPaths(cloader)
  Enter JspBatchCBase.getClassPaths()
  JspBatchCBase.getClassPaths()  libraryRefs: [[com.ibm.websphere
  .models.config.classloader.impl.LibraryRefImpl@36e0c0ea]]
  JspBatchCBase.getClassPaths()  loadedLibraries: [{}]
  JspBatchCBase.getClassPaths()  libName: [LIB1234]
  JspBatchCBase.getClassPaths()  loadedLibraries.get(libName):
  [null]
  java.lang.reflect.InvocationTargetException
  	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  ... Caused by: java.lang.NullPointerException
  	at com.ibm.ws.jsp.tools.JspBatchCBase.getClassPaths(JspBatchCB
  ase.java:1043)
  	at com.ibm.ws.jsp.tools.JspBatchCBase.getClassPaths(JspBatchCB
  ase.java:1086)
  	at com.ibm.ws.jsp.tools.JspBatchCBase.getServerLibraryPaths(Js
  pBatchCBase.java:732)
  	at com.ibm.ws.jsp.tools.JspBatchCBase.getClassLoaderManager(Js
  pBatchCBase.java:567)
  	at com.ibm.ws.jsp.tools.JspBatchCompiler.batchCompile(JspBatch
  Compiler.java:751)
  	at com.ibm.ws.jsp.tools.JspBatchCompiler.runBatchCompiler(JspB
  atchCompiler.java:331)
  
  This can happen if the lookup for the class or library fails.
  This can happen if a path not found or file not found.  The code
  will be improved to output a better message for this error
  condition.
  

Local fix

• fix the reason the lookup for the class or library fails.  Check
  for path not found or file not found.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of JspBatchCompiler on IBM WebSphere  *
  *                  Application Server ND V8.5.5 and V9.0       *
  ****************************************************************
  * PROBLEM DESCRIPTION: When the JspBatchCompiler is used on    *
  *                      installed applications in WebSphere     *
  *                      ND, if the application also             *
  *                      references cluster level libraries      *
  *                      that are incorrectly defined in the     *
  *                      JspBatchCompiler arguments, this can    *
  *                      result in                               *
  *                      java.lang.NullPointerException.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  JspBatchCompiler can encounter a Null Pointer Exception
  (NPE) for certain cluster classlibraries that are referenced
  but not found:
  JspBatchCBase.getServerLibraryPaths() about to call
  getClassPaths(cloader) Enter JspBatchCBase.getClassPaths()
  JspBatchCBase.getClassPaths() libraryRefs:
  [[com.ibm.websphere.models.config.classloader.impl.LibraryRefImp
  l@...]] JspBatchCBase.getClassPaths() loadedLibraries: [{}]
  JspBatchCBase.getClassPaths() libName: [...]
  JspBatchCBase.getClassPaths() loadedLibraries.get(libName):
  [null] java.lang.reflect.InvocationTargetException at
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  ...
  Caused by: java.lang.NullPointerException at
  com.ibm.ws.jsp.tools.JspBatchCBase.getClassPaths(JspBatchCBase.j
  ava:1043) at
  com.ibm.ws.jsp.tools.JspBatchCBase.getClassPaths(JspBatchCBase.j
  ava:1086) at
  com.ibm.ws.jsp.tools.JspBatchCBase.getServerLibraryPaths(JspBatc
  hCBase.java:732) at
  com.ibm.ws.jsp.tools.JspBatchCBase.getClassLoaderManager(JspBatc
  hCBase.java:567) at
  com.ibm.ws.jsp.tools.JspBatchCompiler.batchCompile(JspBatchCompi
  ler.java:751) at
  com.ibm.ws.jsp.tools.JspBatchCompiler.runBatchCompiler(JspBatchC
  ompiler.java:331)
  

Problem conclusion

• The JspBatchCompiler has been updated to trap the
  NPE and log a INFO level trace record that can be used to
  diagnose the cause of the classlibrary lookup error.  The fix
  for this APAR is targeted for versions 8.5.5.21 and 9.0.5.11.
  
  For more information, see 'Recommended Updates for
  WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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 FOR Z

• Fixed component ID

  5655I3500

Applicable component levels