IV19957: SRT:NPE DUE TO DEATTACHMENT/REATTACHMENT OF ASSUMPTIONS IN CLASS ESUNLOAD HOOK

APAR status

• Closed as program error.

Error description

• Error Message: Exception in thread \'_CouplerThread-9229
  (stderr)\' java.lang.NullPointerException
   at
  org.python.compiler.ProxyMaker.findPython(ProxyMaker.java:72)
   at org.python.proxies.subprocess$_CouplerThread$1.run(Unknown
  Source)
  .
  Stack Trace: N/A
  .
  

Local fix

• TR_disableFindRelevantAssumptions=1
  

Problem summary

• Problem is specific to realtime. This happens due to the
  functionality of finding relevant assumptions at the beginning
  of the classunloading hook, deattach rest for shorter gc pause
  time, and reattach back at the end of the hook (end of gc
  cycle).
  This doesn't work for RT because the gc yields to the
  application during the gc cycle. Thus the application may search
  the assumption and not find them (as they were deattached),
  causing wrong behavior (in the failing case it was
  methodOverrideAssumption)
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR1
  6.0.1 SR2
  WRT-V3 SR1
  .
  The solution was under metronome, to search also at the
  deattached list if exist. This was if the assumption exist, we
  would find it in one of the lists.
  

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:

  IV21494

Fix information

• Fixed component name

  JIT

• Fixed component ID

  620700124

Applicable component levels

• R260 PSY

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