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https://issues.apache.org/jira/browse/OPENJPA-314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Linskey resolved OPENJPA-314.
-------------------------------------
Resolution: Fixed
> Unenhanced complex id in MappedSuperclass causes NPE
> ----------------------------------------------------
>
> Key: OPENJPA-314
> URL: https://issues.apache.org/jira/browse/OPENJPA-314
> Project: OpenJPA
> Issue Type: Bug
> Components: jpa
> Reporter: Dain Sundstrom
> Fix For: 1.0.0
>
> Attachments: OPENJPA-314.patch
>
>
> When I have a complex id within an unenhanced MappedSuperClass, I get a NPE
> when calling persist. The NPE appears to be caused because
> ClassMetaData.getField(int) does not take unenhanced MappedSuperclass fields
> into account. Here is the stack trace:
> <openjpa-0.0.0-r420667:564688M nonfatal general error>
> org.apache.openjpa.persistence.PersistenceException: null
> at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2437)
> at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2251)
> at
> org.apache.openjpa.kernel.DelegatingBroker.persist(DelegatingBroker.java:1010)
> at
> org.apache.openjpa.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:541)
> at
> org.apache.openjpa.enhance.TestUnenhancedCompoundPKSubclass.compoundPKHelper(TestUnenhancedCompoundPKSubclass.java:46)
> at
> org.apache.openjpa.enhance.TestUnenhancedCompoundPKSubclass.testCompoundPKFieldAccessUserDefined(TestUnenhancedCompoundPKSubclass.java:35)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:40)
> Caused by: java.lang.NullPointerException
> at
> org.apache.openjpa.util.ApplicationIds$PrimaryKeyFieldManager.retrieve(ApplicationIds.java:568)
> at
> org.apache.openjpa.util.ApplicationIds$PrimaryKeyFieldManager.fetchIntField(ApplicationIds.java:537)
> at
> org.apache.openjpa.enhance.org$apache$openjpa$enhance$UnenhancedCompoundPKFieldAccessSubclass$pcsubclass.pcCopyKeyFieldsToObjectId(Unknown
> Source)
> at
> org.apache.openjpa.enhance.PCRegistry.copyKeyFieldsToObjectId(PCRegistry.java:160)
> at
> org.apache.openjpa.util.ApplicationIds.fromPKValues(ApplicationIds.java:185)
> at
> org.apache.openjpa.enhance.ReflectingPersistenceCapable.pcNewObjectIdInstance(ReflectingPersistenceCapable.java:257)
> at
> org.apache.openjpa.util.ApplicationIds.create(ApplicationIds.java:384)
> at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2405)
> ... 23 more
> Attached is a test case that reproduces the NPE. The test methods have been
> disabled as to not break the build.
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