[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4820) @IdClass with "extra" attributes leads to misleading error

[Hardy Ferentschik (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=35274#action_35274 ] 

Hardy Ferentschik commented on HHH-4820:
----------------------------------------

If I am not mistaken the error message is:
{code}
org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.component.PojoComponentTuplizer]
	at org.hibernate.tuple.component.ComponentTuplizerFactory.constructTuplizer(ComponentTuplizerFactory.java:101)
	at org.hibernate.tuple.component.ComponentTuplizerFactory.constructDefaultTuplizer(ComponentTuplizerFactory.java:122)
	at org.hibernate.tuple.component.ComponentEntityModeToTuplizerMapping.<init>(ComponentEntityModeToTuplizerMapping.java:75)
	at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:73)
	at org.hibernate.mapping.Component.buildType(Component.java:175)
	at org.hibernate.mapping.Component.getType(Component.java:168)
	at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:274)
	at org.hibernate.mapping.RootClass.validate(RootClass.java:237)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1189)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1374)
	at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:965)
	at org.hibernate.test.annotations.TestCase.buildSessionFactory(TestCase.java:93)
	at org.hibernate.test.annotations.TestCase.setUp(TestCase.java:106)
	at com.intellij.junit3.JUnit3IdeaTestRunner.doRun(JUnit3IdeaTestRunner.java:108)
	at com.intellij.junit3.JUnit3IdeaTestRunner.startRunnerWithArgs(JUnit3IdeaTestRunner.java:42)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:165)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:60)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:110)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
	at org.hibernate.tuple.component.ComponentTuplizerFactory.constructTuplizer(ComponentTuplizerFactory.java:98)
	... 28 more
Caused by: org.hibernate.PropertyNotFoundException: field [quantity] not found on org.hibernate.test.annotations.idclassgeneratedvalue.SimplePK
	at org.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:182)
	at org.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:174)
	at org.hibernate.property.DirectPropertyAccessor.getGetter(DirectPropertyAccessor.java:197)
	at org.hibernate.mapping.Property.getGetter(Property.java:294)
	at org.hibernate.tuple.component.PojoComponentTuplizer.buildGetter(PojoComponentTuplizer.java:156)
	at org.hibernate.tuple.component.AbstractComponentTuplizer.<init>(AbstractComponentTuplizer.java:65)
	at org.hibernate.tuple.component.PojoComponentTuplizer.<init>(PojoComponentTuplizer.java:60)
	... 33 more
{code}


> @IdClass with "extra" attributes leads to misleading error
> ----------------------------------------------------------
>
>                 Key: HHH-4820
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4820
>             Project: Hibernate Core
>          Issue Type: Bug
>            Reporter: Steve Ebersole
>            Assignee: Hardy Ferentschik
>
> Even if we end up not supporting HHH-4819, the error message we currently give is completely wrong.  The error message names some non- at Id annotated field in the entity class even though it is the field in the pk class that causes the issue.

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