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From "Dain Sundstrom (JIRA)" <>
Subject [jira] Commented: (OPENJPA-315) Unenhanced generated id field of a primitive wrapper type causes NPE
Date Wed, 29 Aug 2007 01:27:30 GMT


Dain Sundstrom commented on OPENJPA-315:

Sorry.  I was responding to your comment "Marking as resolved under the assumption that the
IDs are properly assigned as tested elsewhere", which to me implied that you assumed there
was already a test for this bug so my patch wasn't necessary.  Again, sorry.

> Unenhanced generated id field of a primitive wrapper type causes NPE
> --------------------------------------------------------------------
>                 Key: OPENJPA-315
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>            Reporter: Dain Sundstrom
>            Priority: Critical
>             Fix For: 1.0.0
>         Attachments: OPENJPA-315.patch
> Unenhanced generated id field of a primitive wrapper type causes NPE because the field
value is null.  This bug only occurs when the id field is an object type as primitive fields
are automatically initialized to 0.  I believe this is a critical bug because when using a
primitive field the system appears to work but the id field is always 0 which could cause
data corruption.  The following stack trace shows the bug:
> <openjpa-0.0.0-r420667:564688M nonfatal general error> org.apache.openjpa.persistence.PersistenceException:
> 	at org.apache.openjpa.kernel.BrokerImpl.persist(
> 	at org.apache.openjpa.kernel.BrokerImpl.persist(
> 	at org.apache.openjpa.kernel.DelegatingBroker.persist(
> 	at org.apache.openjpa.persistence.EntityManagerImpl.persist(
> 	at org.apache.openjpa.enhance.AbstractUnenhancedClassTest.getObjectIdHelper(
> 	at org.apache.openjpa.enhance.AbstractUnenhancedClassTest.testGetObjectIdOnOpenJPAType(
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> 	at com.intellij.rt.execution.junit.JUnitStarter.main(
> Caused by: java.lang.NullPointerException
> 	at org.apache.openjpa.util.ApplicationIds.fromPKValues(
> 	at org.apache.openjpa.enhance.ReflectingPersistenceCapable.pcNewObjectIdInstance(
> 	at org.apache.openjpa.util.ApplicationIds.create(
> 	at org.apache.openjpa.kernel.BrokerImpl.persist(
> 	... 23 more
> The attached patch reproduces this bug.  The patch is a clone of TestUnenhancedFieldAccess
that simply changes the id field to type Integer. 

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