EclipseLink-7198: java.lang.ClassNotFoundException: Class was not found ...

[Turjakas]

I'm using Spring 3.0.5 and GlassFish 3.0.1 with EclipseLink 2.1.1.v20100817-r8050.

I have the following entity classes in the example:
@MappedSuperclass class AbstractDataObject
@MappedSuperclass class AbstractNamedDataObject extends AbstractDataObject
@Entity class TestEntity extends AbstractNamedDataObject

And the following Spring components that use the entity TestEntity:
@Repository class TestRepositoryImpl
@Service class TestServiceImpl

When using a @MappedSuperclass parent class for an entity, accessing EntityManager.getCriteriaBuilder() in TestRepositoryImpl causes a ClassNotFoundException, when called from a @Transactional-annotated method in TestServiceImpl.

Because I'm not sure whether Spring or EclipseLink is the root cause of this bug, I have filed a detailed bug report in EclipseLink bug database.

For complete stack traces, logs and a test case, see the EclipseLink bug:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=332290

A stack trace snippet:

Caused by: Exception [EclipseLink-7198] (Eclipse Persistence Services - 2.1.1.v20100817-r8050): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Class: [net.example.persistencetest.AbstractDataObject] was not found while converting from class names to classes.
Internal Exception: java.lang.ClassNotFoundException: net.example.persistencetest.AbstractDataObject
	at org.eclipse.persistence.exceptions.ValidationException.classNotFoundWhileConvertingClassNames(ValidationException.java:2362)
	at org.eclipse.persistence.descriptors.ClassDescriptor.convertClassNamesToClasses(ClassDescriptor.java:1233)
	at org.eclipse.persistence.internal.jpa.metamodel.MappedSuperclassTypeImpl.create(MappedSuperclassTypeImpl.java:89)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.create(ManagedTypeImpl.java:443)
	at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.initialize(MetamodelImpl.java:343)
	at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.<init>(MetamodelImpl.java:101)
	at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.<init>(MetamodelImpl.java:120)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.getMetamodel(EntityManagerSetupImpl.java:1996)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getMetamodel(EntityManagerFactoryImpl.java:495)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getCriteriaBuilder(EntityManagerFactoryImpl.java:478)
	at com.sun.enterprise.container.common.impl.EntityManagerFactoryWrapper.getCriteriaBuilder(EntityManagerFactoryWrapper.java:109)
	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:597)
	at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:176)
	at $Proxy188.getCriteriaBuilder(Unknown Source)
	at net.example.persistencetest.TestRepositoryImpl.findAll(TestRepositoryImpl.java:24)
	at net.example.persistencetest.TestServiceImpl.findAll(TestServiceImpl.java:37)
	at net.example.persistencetest.TestServiceImpl.init(TestServiceImpl.java:30)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:340)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:293)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:130)
	... 59 more
Caused by: java.lang.ClassNotFoundException: net.example.persistencetest.AbstractDataObject
	at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:744)
	at org.apache.felix.framework.ModuleImpl.access$100(ModuleImpl.java:61)
	at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1656)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:247)
	at org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(PrivilegedAccessHelper.java:88)
	at org.eclipse.persistence.descriptors.ClassDescriptor.convertClassNamesToClasses(ClassDescriptor.java:1230)
	... 84 more

[AuroraBorealis]

Same problem here using Spring 3.0.5 and EclipseLink 2.0.1 and 2.1.1. It seems like Spring's agent does not like @MappedSuperclass.

[Turjakas]

The bug is in EclipseLink and it's been fixed in EclipseLink 2.1.2, which was released recently.

[AuroraBorealis]

Thanks for your help! It seems that my problem is different from yours and upgrading EclipseLink to 2.1.2 does not solve it for me. As a workaround, I disabled weaving completely and not the error is gone.