IBM Support

PI87954: HUNG THREAD ISSUE IN MYFACES GETPROPERTYDESCRIPTOR

Fixes are available

9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12
9.0.5.6: WebSphere Application Server traditional Version 9.0.5 Fix Pack 6

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APAR status

  • Closed as program error.

Error description

  • When using MyFaces JSF implementation, a hang issue may occur.
    Hung threads show the following callstack:
    
    at
    java/util/Collections$SynchronizedMap.get(Collections.java:204
    9(Compiled Code))
    at
    java/util/Collections$SynchronizedMap.get(Collections.java:204
    9(Compiled Code))
    at
    javax/faces/component/_ComponentAttributesMap.getPropertyDescrip
    tor(_ComponentAttributesMap.java:394(Compiled Code))
    at
    javax/faces/component/_ComponentAttributesMap.containsKey(_Compo
    nentAttributesMap.java:165(Compiled Code))
    at
    javax/faces/component/UIComponent.isCompositeComponent(UICompone
    nt.java:239(Compiled Code))
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server versions   *
    *                  8.0, 8.5.5, 9.0 and WebSphere Liberty       *
    *                  users of JavaServer Faces (JSF) MyFaces     *
    *                  2.0 and 2.2                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: Concurrency-related performance issue   *
    *                      in                                      *
    *                      _ComponentAttributesMap.getPropertyDesc *
    *                      riptor                                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    With highly concurrent workloads, a performance issue can be
    exposed in _ComponentAttributesMap.getPropertyDescriptor().
    Hung threads may be observed with a similar callstack:
    ...
    (entered lock:
    java/util/Collections$SynchronizedMap@0x000000000000000, entry
    count:1)
    at
    javax/faces/component/_ComponentAttributesMap.getPropertyDescrip
    tor(_ComponentAttributesMap.java:394(Compiled Code))
    at
    javax/faces/component/_ComponentAttributesMap.containsKey(_Compo
    nentAttributesMap.java:165(Compiled Code))
    at
    javax/faces/component/UIComponent.isCompositeComponent(UICompone
    nt.java:239(Compiled Code))
    ...
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PI87954

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-09-26

  • Closed date

    2018-01-16

  • Last modified date

    2018-01-16

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R800 PSY

       UP

  • R850 PSY

       UP

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
18 October 2021