A fix is available
APAR status
Closed as program error.
Error description
OpenJPA tries to use the ClassLoader responsible for loading the OpenJPA classes to load the specified custom SequenceGenerator class. This is not going to work for application-custom sequence generators because those live in the Application ClassLoader, which is a child of the OSGI ClassLoader where the OpenJPA classes live in.
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server * * Liberty Profile * **************************************************************** * PROBLEM DESCRIPTION: OpenJPA throws a ClassNotFoundException * * when attempting to use an application * * custom @SequenceGenerator * **************************************************************** * RECOMMENDATION: * **************************************************************** The problem occurs because OpenJPA attempts to use the same ClassLoader to load the custom sequence generator class type that WebSphere Application Server uses to load the OpenJPA classes. Because this is a higher level ClassLoader then the Application ClassLoader, custom application sequence generator classes are unavailable.
Problem conclusion
OpenJPA will now fall back to leveraging the Thread Context ClassLoader to load the application customer sequence generator classes. The fix for this APAR is currently targeted for inclusion in fix pack 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
PM80440
Reported component name
LIBERTY PROFILE
Reported component ID
5724J0814
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-01-11
Closed date
2013-03-06
Last modified date
2013-03-06
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 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:
29 October 2021