JR43887: NULLPOINTEREXCEPTION MAY OCCUR WHEN SELECTING JAR FOR JAVA INTEGRATION COMPONENT.

Version 8.0 Refresh Pack 1 for the IBM Business Process Manager products
Version 7.5.1 Fix Pack 1 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• Functionality of managed asset jars may not be available after
  server restart. Repeated server restart will sometimes resolve
  this issue. Logs might indicate classes cannot be found.  The
  key is ManagedAssetClassLoader. The jar in the application
  cannot be found by the system.
  
  Example stacks
  
  java.lang.NoClassDefFoundError: teamworks/SQLConnector$6
  at teamworks.SQLConnector.executeMultiple(SQLConnector.java:265)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
  at
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:60)
  at
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  AccessorImpl.java:37)
  at java.lang.reflect.Method.invoke(Method.java:611)
  at
  teamworks.connector.JavaReflectionConnector$1.execute(JavaReflec
  
  
  
  java.lang.NullPointerException
  at
  com.lombardisoftware.server.core.ManagedAssetClassLoader.findCla
  ssInAssets(ManagedAssetClassLoader.java)
  at
  com.lombardisoftware.server.core.ManagedAssetClassLoader.loadCla
  ss(ManagedAssetClassLoader.java)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:619)
  at java.lang.Class.forNameImpl(Native Method)
  at java.lang.Class.forName(Class.java:139)
  at
  teamworks.sql.SQLResultsTransformer.getInstance(SQLResultsTransf
  ormer.java:53)
  at
  teamworks.sql.SQLResultsTransformer.transformResults(SQLResultsT
  ransformer.java:36)
  at teamworks.SQLConnector.execute(SQLConnector.java:238)
  at
  teamworks.SQLConnector.executeFlat(SQLConnector.java:244)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
  Method)
  at
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:60)
  
  tionConnector.java)
  at
  com.lombardisoftware.server.core.ManagedAssetClassLoaderUtil.exe
  cuteWithManagedAssetClassLoader(ManagedAssetClassLoaderUtil.java
  )
  

Local fix

• A temporary fix is to increase <classloader-resource-map-size>
  in the Lombardi configuration.xml files.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM Business Process Manager 7.5 Express,   *
  *                  Standard and Advanced                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: NullPointerException is thrown when     *
  *                      user tries to make multiple sql         *
  *                      calls using teamworks.SQLConnector.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When ManagedAssetClassLoader is not able to find
  manage assets used by teamworks.SQLConnector it results in
  NullPointerException.
  

Problem conclusion

• To avoid the NullPointerException the code has been modified
  to check for the case when no managed assets were returned
  before attempting to access them.
  
  Install/Dependency information is available in the readme.txt
  on FixCentral. When the user goes to the download files page
  in FixCentral, the readme will be available with the fix
  package as a separate download.
  

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

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels

• R750 PSY

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