JR52209: WEBSPHERE JVM CRASHES AND THE JAVA CORE FILE SHOWS A GPF WITH WASJ2EEDIRECTORYIMPL.GETGROUPSFORUSER IN THE STACK TRACE

Download ISF roll-up 7 for InfoSphere Information Server Version 9.1.2
IBM InfoSphere Information Server, Version 11.3.1.2 (Fix Pack 2)
Download ISF roll-up 8 for InfoSphere Information Server Version 9.1.2
Download ISF roll-up 11 for InfoSphere Information Server Version 9.1.2
Download ISF roll-up 12 for InfoSphere Information Server Version 9.1.2
Download ISF roll-up 10 for InfoSphere Information Server Version 9.1.2

APAR status

• Closed as program error.

Error description

• Error Description
  The WebSphere JVM for an IBM InfoSphere Information Server
  configured with an external user registry crashes and produces
  a Java core file.
  
  The Java core indicates that the failure was caused by a gpf.
  The current thead info contains a stack trace similar to:
  
  1XMCURTHDINFO  Current thread
  NULL           ----------------------
  3XMTHREADINFO      "WebContainer : 17"
  J9VMThread:0x00000000C3FACB00, j9thread_t:0x000001001D0C6700,
  java/lang/Thread:0x0000000065927E20, state:R, prio=5
  3XMTHREADINFO1            (native thread ID:0x6300167, native
  priority:0x5, native policy:UNKNOWN)
  3XMTHREADINFO3           Java callstack:
  4XESTACKTRACE                at
  com/ibm/ws/security/registry/unix/UnixRegistryImpl.ntv_getGroups
  ForUser(Native Method)
  4XESTACKTRACE                at
  com/ibm/ws/security/registry/unix/UnixRegistryImpl.getGroupsForU
  ser(UnixRegistryImpl.java:354(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/ws/security/registry/UserRegistryImpl.getGroupsForUser(U
  serRegistryImpl.java:783(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/websphere/security/_UserRegistry_Stub.getGroupsForUser(_
  UserRegistry_Stub.java:842(Compiled Code))
  4XESTACKTRACE                at
  com/ibm/is/isf/j2ee/impl/was/security/WASJ2EEDirectoryImpl.getGr
  oupsForUser(WASJ2EEDirectoryImpl.java:840(Compiled Code))
  4XESTACKTRACE                at
  com/ascential/acs/security/directory/provider/impl/J2EEProvider.
  getUserGroups(J2EEProvider.java:282(Compiled Code))
  .....
  
  Prior to this error, the code did a query to retrieve a list of
  all users matching a particular pattern.  That query returned
  at least one user.  The code then requested the first user on
  that list and either a null or a zero length list was returned
  which resulted in a null value being passed to the
  getGroupsForUser and that null value resulted in the gpf.  IBM
  has not determined how to reproduce this condition, but we will
  add code to detect it and to return an exception instead of
  passing the null user to the getGroupsForUser query.  The
  request will get a user not found error, but the JVM will not
  crash.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  InfoSphere Information Server installations configured with an
  external user registry.
  ****************************************************************
  PROBLEM DESCRIPTION:
  The WebSphere JVM for an IBM InfoSphere Information Server
  configured with an external user registry crashes and produces a
  Java core file. The Java core indicates that the failure was
  caused by a gpf.  The current thead info contains a stack trace
  similar to:
  1XMCURTHDINFO  Current thread NULL
  ----------------------3XMTHREADINFO      "WebContainer : 17"
  J9VMThread:0x00000000C3FACB00, j9thread_t:0x000001001D0C6700,
  java/lang/Thread:0x0000000065927E20, state:R,
  prio=53XMTHREADINFO1            (native thread ID:0x6300167,
  native priority:0x5, native policy:UNKNOWN)3XMTHREADINFO3
      Java callstack:4XESTACKTRACE                at
  com/ibm/ws/security/registry/unix/UnixRegistryImpl.ntv_getGroups
  ForUser(Native Method)4XESTACKTRACE                at
  com/ibm/ws/security/registry/unix/UnixRegistryImpl.getGroupsForU
  ser(UnixRegistryImpl.java:354(Compiled Code))4XESTACKTRACE
            at
  com/ibm/ws/security/registry/UserRegistryImpl.getGroupsForUser(U
  serRegistryImpl.java:783(Compiled Code))4XESTACKTRACE
       at
  com/ibm/websphere/security/_UserRegistry_Stub.getGroupsForUser(_
  UserRegistry_Stub.java:842(Compiled Code))4XESTACKTRACE
         at
  com/ibm/is/isf/j2ee/impl/was/security/WASJ2EEDirectoryImpl.getGr
  oupsForUser(WASJ2EEDirectoryImpl.java:840(Compiled
  Code))4XESTACKTRACE                at
  com/ascential/acs/security/directory/provider/impl/J2EEProvider.
  getUserGroups(J2EEProvider.java:282(Compiled Code))
  
  Prior to this error, the code did a query to retrieve a list of
  all users matching a particular pattern.  That query returned at
  least one user.  The code then requested the first user on that
  list and either a null or a zero length list was returned
  which resulted in a null value being passed to the
  getGroupsForUser and that null value resulted in the gpf.
  ****************************************************************
  RECOMMENDATION:
  Apply the 9.1.2 ISF rollup fix pack RU6 or higher
  ****************************************************************
  

Problem conclusion

• IBM has not determined  how to reproduce this condition, but
  the fix adds code to detect it and to return an exception
  instead of passing the null user to the getGroupsForUser query.
  The request will get a user not found error, but the JVM will
  not crash.
  

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

  INFO SRVR PLATF

• Fixed component ID

  5724Q3612

Applicable component levels

• R912 PSY

     UP