[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3208) NullPointerException thrown in ManyToOne.java

[Karol Nowak (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29906 ] 

Karol Nowak commented on HHH-3208:
----------------------------------

Actually, I made a mistake in the original submission - the cause of the NPE was not a wrong value of property-ref - it was a mistyped name of the class in <many-to-one>. I believe the report is still valid...

> NullPointerException thrown in ManyToOne.java
> ---------------------------------------------
>
>                 Key: HHH-3208
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3208
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.6
>         Environment: Hibernate 3.2.6; Database: N/A
>            Reporter: Karol Nowak
>
> Hibernate dies with ExceptionInInitializerError due to a NullPointerException being thrown in ManyToOne.java (see the trace below) when a property-ref attribute is set to a nonexistent property group. That's annoying and difficult to debug. Instead, Hibernate should inform that there's no matching group.
> java.lang.ExceptionInInitializerError
> 	at com.sabre.fs.emd.or.HibernateUtil.<clinit>(HibernateUtil.java:20)
> 	at com.sabre.fs.emd.query.Executor.<init>(Executor.java:82)
> 	at com.sabre.fs.emd.query.ExecutorTest.beforeTest(ExecutorTest.java:64)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:585)
> 	at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:122)
> 	at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:86)
> 	at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
> 	at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
> 	at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
> 	at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
> 	at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
> 	at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
> 	at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
> 	at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
> 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: java.lang.NullPointerException
> 	at org.hibernate.mapping.ManyToOne.createPropertyRefConstraints(ManyToOne.java:47)
> 	at org.hibernate.cfg.HbmBinder$ManyToOneSecondPass.doSecondPass(HbmBinder.java:2717)
> 	at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1130)
> 	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1286)
> 	at com.sabre.fs.emd.or.HibernateUtil.<clinit>(HibernateUtil.java:15)
> 	... 22 more

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