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From "Dain Sundstrom (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-314) Unenhanced complex id in MappedSuperclass causes NPE
Date Tue, 14 Aug 2007 17:35:30 GMT
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


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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