IBM Support

PM78603: HEAP EXHAUSTION IN SECURITY CODE DUE TO NULLPOINTER EXCEPTIONS

Fixes are available

8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • An out of memory condition which indicates that following
    objects occupy heap area.
    
    ***
    com/ibm/ISecurityLocalObjectCSIv2UtilityImpl/ConnectionTable
    0x916f5740
    451,763,464 (48.13%) [208] 15 array of
    java/util/Hashtable$Entry
    0x97320458
    216,670,248 (23.08%) [32] 3
    java/util/Hashtable$HashtableCacheHashEntry 0x96dc1098
    126,294,800 (13.45%) [32] 3
    java/util/Hashtable$HashtableCacheHashEntry 0x93b8fe60
    59,848,168 (6.38%) [32] 2
    java/util/Hashtable$HashtableCacheHashEntry
    0x9539f630
    44,435,160 (4.73%) [32] 2
    java/util/Hashtable$HashtableCacheHashEntry
    0x954c1310
    ****
    
    When this condition is observed, the following
    NullPointerException was logged as well.
    
    ***
    java.lang.NullPointerException com.ibm.ejs.util.am._Alarm.run
    95
    Exception = java.lang.NullPointerException
    Source = com.ibm.ejs.util.am._Alarm.run
    probeid = 95
    Stack Dump = java.lang.NullPointerException
    at java.util.Hashtable.get(Hashtable.java:460)
    at
    com.ibm.ISecurityLocalObjectCSIv2UtilityImpl.SessionManager.clea
    n_client
    _sessions(SessionManager.java:1703)
    at
    com.ibm.ISecurityLocalObjectCSIv2UtilityImpl.SessionManager.clea
    n_sessio
    n_tables(SessionManager.java:1788)
    
    ***
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: OutOfMemory Exception due to            *
    *                      stoppage of Session table clean up      *
    *                      code                                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Heap exhaustion due to NullPointer exceptions in a middle
    of processing alarm task of session table eviction code, this
    scheduled task no longer starts again.  As a result, session
    entries in the table no longer be evicted even they are
    expired. At the end, it consumes all of available memory.
    

Problem conclusion

  • With this fix, alarm task was modified in order to handle
    NullPointer exceptions gracefully.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 6.1.0.47, 7.0.0.29, 8.0.0.6 and the fix pack following
    8.5.0.2. Please refer to the Recommended Updates page for
    delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM78603

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    61A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-06

  • Closed date

    2013-01-29

  • Last modified date

    2013-01-29

  • 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

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61I PSY

       UP

  • R61P PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP

  • R61Z PSY

       UP

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 October 2021