Out of interest, I tried playing around with hibernate-validator on
this demo to see if it works, and (as you can see below), it doesnt.

Any ideas why its doing this?

Looking at the compiled bytecode, its trying to invoke the synthesized
method "name_$eq(String x$1)", and for some reason, failing to call it
properly.

Anyone else's input would be interesting :)

Cheers

Tim



-------------------------------------------------------------------------------
Test set: com.foo.jpaweb.model.TestJPAWeb
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.598
sec <<< FAILURE!
save_stuff(com.foo.jpaweb.model.TestJPAWeb)  Time elapsed: 1.554 sec
<<< ERROR!
java.lang.IllegalStateException: Could not get property value
        at
org.hibernate.validator.ClassValidator.getMemberValue(ClassValidator.java:
537)
        at
org.hibernate.validator.ClassValidator.getInvalidValues(ClassValidator.java:
383)
        at
org.hibernate.validator.ClassValidator.getInvalidValues(ClassValidator.java:
351)
        at
org.hibernate.validator.event.ValidateEventListener.validate(ValidateEventListener.java:
139)
        at
org.hibernate.validator.event.ValidateEventListener.onPreInsert(ValidateEventListener.java:
172)
        at
org.hibernate.action.EntityIdentityInsertAction.preInsert(EntityIdentityInsertAction.java:
119)
        at
org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:
42)
        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
        at
org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:
298)
        at
org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:
181)
        at
org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:
107)
        at
org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:
49)
        at
org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:
131)
        at
org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:
87)
        at
org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:
38)
        at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:596)
        at
org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:
213)
        at com.foo.jpaweb.model.TestJPAWeb.save_stuff(TestJPAWeb.scala:34)
        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.TestMethod.invoke(TestMethod.java:59)
        at
org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:
98)
        at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:
79)
        at
org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:
87)
        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
$1.run(JUnit4ClassRunner.java:44)
        at
org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:
27)
        at
org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:
37)
        at
org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:
42)
        at
org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:
62)
        at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:
140)
        at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:
127)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:
338)
        at
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:
997)
Caused by: java.lang.IllegalArgumentException: Invoking name_$eq with
wrong parameters
        at
org.hibernate.annotations.common.reflection.java.JavaXMethod.invoke(JavaXMethod.java:
39)
        at
org.hibernate.validator.ClassValidator.getMemberValue(ClassValidator.java:
534)
        ... 45 more
Caused by: java.lang.IllegalArgumentException: wrong number of
arguments
        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.hibernate.annotations.common.reflection.java.JavaXMethod.invoke(JavaXMethod.java:
33)


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