APAR status
Closed as program error.
Error description
When inserting ObjectA in to a database with ObjectB attached to it, ObjectA is inserted twice resulting in a sqlstate 23505 constraint violation. The Primary Key of ObjectC is autogenerated and is used in ObjectA as the Primary Key. It is also used as part of ObjectB's Primary Key. In testing, if you use the same setup while replacing the combined Primary Key of ObjectB with a single Primary Key, the test case runs without errors.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of the Java Persistence API * * (JPA) 2.0 feature of the IBM WebSphere * * Application Server V7 Feature Pack for * * OSGi Applications and Java Persistence API * * 2.0 who make use MapsID and auto-generated * * identity. * **************************************************************** * PROBLEM DESCRIPTION: MapsId in a Child entity to a Parent * * entity using auto-assigned identity * * fails with duplicte INSERT SQL. * **************************************************************** * RECOMMENDATION: * **************************************************************** A MapsId annotation in entity C (child) annotates a field p of type P (parent). P uses auto-generated identity. P-C is a bidirectional parent-child relationship. During flush sequence, a row is created for P and flushed for the database to assign an identity. When C is flushed, it wrongly creates a row for P again while handling the field p that points to parent. This results in a commit which fails with a DuplicateKeyException on P's table.
Problem conclusion
With this fix, code has been added to OpenJPA to properly generate SQL when handling a Parent/Child relationship which uses MapsID and auto-generated identity. The fix for this APAR is currently targeted for inclusion in Fix Pack 1.0.0.11 for the Feature Pack for OSGi Applications and Java Persistence API 2.0. Please refer to the recommended updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980 Please refer to URL: //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970 for Fix Pack availability.
Temporary fix
Comments
APAR Information
APAR number
PM87616
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-04-23
Closed date
2013-07-09
Last modified date
2013-07-17
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
JPA OSGI FEATUR
Fixed component ID
5655N0257
Applicable component levels
R700 PSY
UP
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"1.0","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 December 2020