IBM Support

PI25445: CLASSLOADER CONTENTION ON EXPRESSIONFACTORYIMPL OBJECTS

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A class loader lock contention in creating
    ExpressionFactoryImpl objects cause performance to degrade
    under load.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Version    *
    *                  8.5.5 Liberty Profile users of the          *
    *                  Expression Language (EL).                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: A performance degradation can occur     *
    *                      under heavy load for applications       *
    *                      using the EL                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A class loader lock contention can occur on the EL class
    org.apache.el.ExpressionFactoryImpl during heavy load.
    Applications using EL expressions under heavy load will result
    in the creation of many ExpressionFactoryImpl objects and lead
    to the lock contention.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PI25445

  • Reported component name

    LIBERTY PROFILE

  • Reported component ID

    5724J0814

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-09-11

  • Closed date

    2014-09-11

  • Last modified date

    2014-09-12

  • APAR is sysrouted FROM one or more of the following:

    PM78648

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    LIBERTY PROFILE

  • Fixed component ID

    5724J0814

Applicable component levels

  • 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":"850","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
27 April 2022