APAR status
Closed as program error.
Error description
The HybridPersistenceActivator, which enables integrating a JPA persistence provider implementation with Aries OSGi applications, uses ClassLoader for the WeakHashMap key, which prevents its garbage collection.
Local fix
if not needed, do not enable the JPA feature
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server Liberty - Java Persistence API * * (JPA) * **************************************************************** * PROBLEM DESCRIPTION: JPA Persistence Activator retains * * ClassLoader references, potentially * * leading to OutOfMemory condition * **************************************************************** * RECOMMENDATION: * **************************************************************** The HybridPersistenceActivator, which enables integrating a JPA persistence provider implementation with Aries OSGi applications, uses ClassLoader for the WeakHashMap key, which prevents its garbage collection.
Problem conclusion
The HybridPersistenceActivator has been changed to use ModuleMetaData instead of ClassLoader for the key. When an application is stopped, all non-weak references to the ModuleMetaData will count down to zero, ensuring that it will be Garbage Collected. The fix for this APAR is currently targeted for inclusion in fix pack 20.0.0.9. 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
PH28547
Reported component name
LIBERTY PROF -
Reported component ID
5655W6514
Reported release
CD0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-08-17
Closed date
2020-08-17
Last modified date
2020-08-17
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
LIBERTY PROF -
Fixed component ID
5655W6514
Applicable component levels
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"CD0","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
18 August 2020