PM27407: When disabling PL/I annotations, parsing of PL/I programs still occurs causing an internal error (StackOverflowError)

APAR status

• Closed as program error.

Error description

• Rational Developer for System z V7.6.2:
  
  PL/I annotations can be disabled using the PL/I Annotations
  preference page. If Disable annotations is selected, the PL/I
  real-time parser is still parsing the file unnecessarily.
  
  One of the symptoms of this problem is when the PL/I real-time
  syntax check parser detects a large number of errors, it uses up
  the Java stack memory causing and Internal Error popup dialog to
  be displayed with the following text:
  
    An internal error occurred while showing an internal error.
    You are recommended to exit the workbench.  Subsequent errors
    may happen and my terminate the workbench without warning.
  
    See the .log for more details.
  
    Do you want to exit the workbench?'
  
  Another error dialog is also displayed showing the following
  message:
  
    An internal error occurred during:  "Pl/I annotations and
    tools"'.
  
  The .log shows:
  
    !MESSAGE An internal error occurred during: "PL/I annotations
    and tools".
    !STACK 0
    java.lang.StackOverflowError
     at lpg.runtime.ConfigurationStack.findOrInsertStack(Unknown
    Source)
     at lpg.runtime.ConfigurationStack.push(Unknown Source)
     at lpg.runtime.DiagnoseParser.parseCheck(Unknown Source)
     at lpg.runtime.DiagnoseParser.checkPrimaryDistance(Unknown
    Source)
     at lpg.runtime.DiagnoseParser.primaryPhase(Unknown Source)
     at lpg.runtime.DiagnoseParser.errorRecovery(Unknown Source)
     at lpg.runtime.DiagnoseParser.diagnoseEntry(Unknown Source)
     at lpg.runtime.DiagnoseParser.diagnose(Unknown Source)
     at
   com.ibm.systemz.pl1.editor.core.parser.Pl1Parser.parser(Unknown
    Source)
     at
    com.ibm.systemz.pl1.editor.core.parser.Pl1ParseController.pars
     e( Unknown Source)
     at
    com.ibm.systemz.pli.editor.lpex.parser.ParseJob.run(Unknown
     Source)
     at org.eclipse.core.internal.jobs.Worker.run(Unknown Source)
  
  One possible workaround to the stack overflow error is to add
  the -vmargs -Xss512k to the arguments when starting up Rational
  Developer for System z.
  

Local fix

Problem summary

• USERS AFFECTED:
      RD/z users who disable PL/I annotations.
  ****************************************************************
  *
  PROBLEM DESCRIPTION:
     In the PL/I Annotations preference page, users can disable
  the annotations provided by the PL/I real-time syntax check
  feature. If this option was chosen, the annotations did not
  appear; however, the PL/I program was still parsed by the
  real-time syntax parser.
  

Problem conclusion

• PROBLEM RESOLUTION:
    RD/z does not parse the program when the user disables PL/I
  annotations.
  
  The problem listed in this APAR has been resolved with
  IBM Rational Developer for System z V7.6.2.1 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

• R762 PSY

     UP