PI41911: DBX COMMAND RESULTS IN NULLPOINTEREXCEPTION WHEN DEBUGGING C++ PROGRAM USING RDZ V9.1.1.1

Rational Developer for System z Fix Pack 1 (9.1.1.2) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.3) for 9.1.1.
Rational Developer for System z Interim Fix 1 for 9.1.1.3
Rational Developer for System z Fix Pack 1 (9.1.1.4) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.5) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.6) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.7) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.8) for 9.1.1
Rational Developer for System z Fix Pack 9 (9.1.1.9) for 9.1.1

APAR status

• Closed as program error.

Error description

• dbx command results in NullPointerException when debugging C++
  program using Rational Developer for System z v9.1.1.1
  
  !ENTRY org.eclipse.core.jobs 4 2 2015-05-19 16:53:45.813
  !MESSAGE An internal error occurred during: "Debug Source
  Lookup".
  !STACK 0
  java.lang.NullPointerException
      at
  com.ibm.debug.pdt.internal.ui.PDTModelPresentation.getDefaultEdi
  torID(Unknown Source)
      at
  com.ibm.debug.pdt.internal.ui.PDTModelPresentation.useDefaultEdi
  tor(Unknown Source)
      at
  com.ibm.debug.pdt.internal.ui.PDTModelPresentation.getEditorInpu
  t(Unknown Source)
      at
  org.eclipse.debug.internal.ui.LazyModelPresentation.getEditorInp
  ut(Unknown Source)
      at
  org.eclipse.debug.internal.ui.sourcelookup.SourceLookupFacility.
  lookup(Unknown Source)
      at org.eclipse.debug.ui.DebugUITools.lookupSource(Unknown
  Source)
      at
  org.eclipse.debug.internal.ui.elements.adapters.StackFrameSource
  DisplayAdapter$SourceLookupJob.run(Unknown Source)
      at org.eclipse.core.internal.jobs.Worker.run(Unknown Source)
  
  The problem is reproducible with the following commands for
  example:
  
  cxx -c
  -Wc,"XPLINK,DEBUG(FORMAT(DWARF),SYMBOL),LANGLVL(EXTENDED),FLAG(W
  ),LP64,WARN64" tstHello.C
  cxx -Wl,xplink,lp64 -o tstHello tstHello.o
  dbgld tstHello
  dbx -p 9.142.33.52:8001 ./tstHello
  Observe NPE error and see stack in <workspace>\.metadata\.log
  
  There is no NullPointerException with the following commands:
  xlc -g -o tstHello tstHello.C
  dbx -p 9.142.33.52:8001 ./tstHello
  

Local fix

• Set "Always use Debugger Editor while debugging" checkbox in:
  Menu
  >> Window
     >> Preferences
        >> Run / Debug
           >> Compiled Debug
              >> Debug Editors
  

Problem summary

• If a debug engine fails to provide a non zero language ID during
  a debug session the UI would throw a null pointer exception and
  the editor would fail to open.
  

Problem conclusion

• The UI was changed to handle non zero language IDs.
  
  The problem listed in this APAR has been resolved with
  IBM Rational Developer for System z V9.1.1.2 Fix Pack which
  is available from the Recommended Fixes support download page:
  http://www-1.ibm.com/support/docview.wss?rs=2294&uid=swg27006335
  

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

  RATL DEV FOR SY

• Fixed component ID

  5724T0700

Applicable component levels

• R911 PSY

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