IBM Support

PH11801: LIBERTY 19.0.0.3 CAN'T START JAVA HEALTH CENTER STARTING WITH IBM JDK 8.0.5.31.

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APAR status

  • Closed as program error.

Error description

  • When using the IBM JDK 8.0.5.31 with Liberty 19.0.0.3 the
    health
    center agent cannot be found (-Xhealthcenter). The following
    message is produced:
    
    [25/04/19 11:37:05:781 EDT] 0001d36d
    com.ibm.ws.health.center.classloader.HCClassLoader W
    TRAS4352W:
    Health Center agent was not found, so JVM monitoring and
    diagnostic information will not be available
    
    
    1. recent v8.0.x.x (after 8.0.5.27) and recent v7.0.x.x IBM
    J9
    JREs/JDKs have changed the name of the version.properties
    file
    to hcversion.properties
    
    2.Liberty is looking for the ?version.properties? explicitly
    (appears in HealthCenterCompatibleCheck.java /
    HCAgentConnection.java / HCClassLoader.java)
    
    3. adding health center back into the JDK is possible, but
    not
    easy for customers to do
    
    4. it may be the case that OpenJ9 Java 11 will switch to
    mission
    control
    
    We probably need to update files mentioned in 2. above to
    look
    in BOTH version.properties and hcversion.properties for the
    version info (so that we can still work with older JDKs
    while
    supporting newer ones).
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Liberty that use the                 *
    *                  LogstashCollector-1.x feature and use the   *
    *                  GarbageCollection source or users of the    *
    *                  HealthManager-1.0 and HealthAnalyzer-1.0    *
    *                  features                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: The health center agent cannot be found *
    *                      when using newer IBM JDKs               *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The following warning is observed when using LogstashCollector-
    1.x, HealthManager-1.0 or HealthAnalyzer-1.0 feature:
    "com.ibm.ws.health.center.classloader.HCClassLoader W TRAS4352W:
    Health Center agent was not found, so JVM monitoring and
    diagnostic information will not be available"
    
    Affects IBM J9 JREs/JDK for Java 7 and 8:
    AFTER v8.0.5.27
    AFTER v7.0.10.35
    AFTER v7.1.4.35
    

Problem conclusion

  • The JDK have renamed a property file that the Liberty code uses
    to retrieve version info.
    The Liberty code has been modified to parse the new file.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack 19.0.0.5.  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

    PH11801

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-05-07

  • Closed date

    2019-07-29

  • Last modified date

    2019-07-29

  • 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

    WAS LIBERTY COR

  • Fixed component ID

    5725L2900

Applicable component levels

  • RCD0 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSD28V","label":"WebSphere Application Server Liberty Core"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
14 October 2021