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EclipseLink-7198, Class was not found while converting from class names to classes [message #543435]

Tue, 29 June 2010 08:41

Eclipse User

Hi

I observed weird errors when DAO class use criteria API (with generated meta model):

Local Exception Stack:
Exception [EclipseLink-7198] (Eclipse Persistence Services - 2.0.1.v20100213-r6600): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Class: [(...).model.AbstractEntity] was not found while converting from class names to classes.
Internal Exception: java.lang.ClassNotFoundException: (...).model.AbstractEntity
at org.eclipse.persistence.exceptions.ValidationException.class NotFoundWhileConvertingClassNames(ValidationException.java:2 317)

AbstractEntity is an abstract class, annotated as @MappedSuperclass.
The problem occurs only for criteria queries, for named queries everything works fine. After execution any named query, the problematic criteria query also works!

It looks that during criteria query evaluation the class can not be loaded. If the class has been already loaded by another query (named query) the criteria query is evaluated successfully.

My environment:
glassfish 3.0.1
java 1.6.0_17
DataSource from JNDI
JTA transactions
All entities are defined explicitly (exclude-unlisted-classes set to true).

For the Glassfish nightly build (eclipselink 2.1.0.v20100529-r7411) identical exception is thrown.

Any help will be appreciated.

Marcin

[Updated on: Tue, 29 June 2010 08:49] by Moderator

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #543539 is a reply to message #543435]

Tue, 29 June 2010 13:36

Eclipse User

Hello,

Can you provide the full stack trace and the code you are calling that gets the exception?

Regards,
Chris

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #544045 is a reply to message #543539]

Thu, 01 July 2010 09:02

Eclipse User

Sorry for the long delay. I changed load time weaving to static one and configure Spring to manage entity manager instead of application server. But it didn't help.

I will try to reproduce the error in integration test also (in J2SE environment).

Abstract entity class:

@MappedSuperclass
public abstract class AbstractEntity implements Entity {

	private Long entityId;

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(name = "entity_id")
	public Long getEntityId() {
		return entityId;
	}

	public void setEntityId(Long entityId) {
		this.entityId = entityId;
	}

}

Employee entity (fragment), all fields use property access:

@Entity
@Table(name = "jee6_employee")
@NamedQueries( {
		@NamedQuery(name = Employee.FIND_ALL_QUERY, query = "select e from Employee e order by e.lastName, e.firstName"),
		@NamedQuery(name = Employee.COUNT_QUERY, query = "select count(e) from Employee e") })
@SuppressWarnings("serial")
public class Employee extends AbstractEntity {

	public final static String FIND_ALL_QUERY = "Employee.findAll";
	public final static String COUNT_QUERY = "Employee.count";

	private String firstName;
	private String lastName;
	private String email;
	private String phoneNumber;
...

}

The criteria query:

CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Employee> cq = cb.createQuery(Employee.class);

Root<Employee> employee = cq.from(Employee.class);
             
cq.orderBy(cb.asc(employee.get(Employee_.lastName)), cb.asc(employee.get(Employee_.firstName)));

TypedQuery<Employee> q = getEm().createQuery(cq);
q.setFirstResult(firstResult);
q.setMaxResults(maxResults);

return q.getResultList();

Stack trace (without JRebel integration, exception also is thrown):

Local Exception Stack: 
Exception [EclipseLink-7198] (Eclipse Persistence Services - 2.0.1.v20100213-r6600): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Class: [example.model.AbstractEntity] was not found while converting from class names to classes.
Internal Exception: java.lang.ClassNotFoundException: example.model.AbstractEntity
	at org.eclipse.persistence.exceptions.ValidationException.classNotFoundWhileConvertingClassNames(ValidationException.java:2317)
	at org.eclipse.persistence.descriptors.ClassDescriptor.convertClassNamesToClasses(ClassDescriptor.java:1217)
	at org.eclipse.persistence.internal.jpa.metamodel.MappedSuperclassTypeImpl.create(MappedSuperclassTypeImpl.java:89)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.create(ManagedTypeImpl.java:433)
	at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.initialize(MetamodelImpl.java:342)
	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:1956)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getMetamodel(EntityManagerFactoryImpl.java:472)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getCriteriaBuilder(EntityManagerFactoryImpl.java:456)
	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.zeroturnaround.jrebel.integration.toplink.EntityManagerFactoryMethodHandler.invokeInternal(EntityManagerFactoryMethodHandler.java:105)
	at org.zeroturnaround.jrebel.integration.toplink.EntityManagerFactoryMethodHandler.invoke(EntityManagerFactoryMethodHandler.java:68)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl_$$_javassist_0.getCriteriaBuilder(EntityManagerFactoryImpl_$$_javassist_0.java)
	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.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:423)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:485)
	at $Proxy129.getCriteriaBuilder(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:176)
	at $Proxy130.getCriteriaBuilder(Unknown Source)
	at example.dao.EmployeeDaoImpl.findByQuery(EmployeeDaoImpl.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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:55)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
	at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:50)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
	at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:50)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy131.findByQuery(Unknown Source)
	at example.web.primefaces.EmployeeController$1.fetchLazyData(EmployeeController.java:77)
	at org.primefaces.component.datatable.DataTable.loadLazyData(DataTable.java:393)
	at org.primefaces.component.datatable.DataTableRenderer.encodeTable(DataTableRenderer.java:503)
	at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:441)
	at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:239)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:878)
	at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:77)
	at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:61)
	at org.primefaces.component.panel.PanelRenderer.encodeContent(PanelRenderer.java:201)
	at org.primefaces.component.panel.PanelRenderer.encodeMarkup(PanelRenderer.java:133)
	at org.primefaces.component.panel.PanelRenderer.encodeEnd(PanelRenderer.java:69)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:878)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1620)
	at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:848)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1613)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1616)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1616)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:380)
	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: example.model.AbstractEntity
	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.ClassLoader.loadClassInternal(ClassLoader.java:316)
	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:1214)
	... 96 more

[Updated on: Thu, 01 July 2010 09:07] by Moderator

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #544059 is a reply to message #544045]

Thu, 01 July 2010 09:42

Eclipse User

I found the root cause of the error - transactional context settings. When I define transactional propagation as SUPPORTS (Spring notation) the exception is thrown. With REQUIRED propagation everything works as I expected.

For the read only operation SUPPORTS transaction propagation should be 100% fine. And it is, but not for first invocation of criteria query when it fails.

Could you verify the criteria query execution without transactional context (auto commit mode), please?

[Updated on: Thu, 01 July 2010 09:42] by Moderator

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #544425 is a reply to message #544059]

Fri, 02 July 2010 11:48

Eclipse User

Hello,

I suspect that when you have a transaction, the entitymanager is already initialized, and so the criteria query is getting a preloaded metamodel. When it is not in a transaction (or other queries are not executed first), because Spring wraps the EM, the underlying EclipseLink EntityManager/EMF might not have been initialized/deployed, and so may not have the correct classloader yet.

Please file an EclipseLink bug, and remember to vote for it and include the logs with EclipseLink log level set to finest(and a simple test case if possible). You can set the log level via the <property name="eclipselink.logging.level" value="FINEST" /> persistence property.

Best Regards,
Chris

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #555121 is a reply to message #543435]

Wed, 25 August 2010 09:52

Eclipse User

I had the same issue with Exception [EclipseLink-7198]. Getting an extended entity manager to build the queries solved the problem regardless of the type of transaction option used.

...
@PersistenceContext(name="myPU", PersistenceContextType.EXTENDED)
private JpaEntityManager em;
CriteriaBuilder cb = em.getCriteriaBuilder();
...

Regards,
Phil

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #641455 is a reply to message #543435]

Thu, 25 November 2010 10:01

Eclipse User

I'm experiencing the same problem using a combination of Spring 3.0.5, EclipseLink 2.1.1 and GlassFish 3.0.1.

The class that causes the exception is always a @MappedSuperclass-annotated class (that is inside another JAR-file under WEB-INF/lib in a WAR package):

However, I've noticed that the exception happens only when restarting an already deployed application or restarting GlassFish. Deploying the application by uploading it to GlassFish seems to work every time.

Also, I'm using Propagation.REQUIRED for the transaction and I wouldn't like to introduce any hacks in the code, such as using EXTENDED PersistenceContext just as a workaround.

See stack trace:

Caused by: org.eclipse.persistence.exceptions.ValidationException: 
Exception Description: Class: [com.company.wire.data.AbstractDataObject] was not found while converting from class names to classes.
Internal Exception: java.lang.ClassNotFoundException: com.company.wire.data.AbstractDataObject
        at org.eclipse.persistence.exceptions.ValidationException.classNotFoundWhileConvertingClassNames(ValidationException.java:2362) ~[org.eclipse.persistence.core_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.descriptors.ClassDescriptor.convertClassNamesToClasses(ClassDescriptor.java:1233) ~[org.eclipse.persistence.core_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.metamodel.MappedSuperclassTypeImpl.create(MappedSuperclassTypeImpl.java:89) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.create(ManagedTypeImpl.java:443) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.initialize(MetamodelImpl.java:343) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.(MetamodelImpl.java:101) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.(MetamodelImpl.java:120) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.getMetamodel(EntityManagerSetupImpl.java:1996) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getMetamodel(EntityManagerFactoryImpl.java:495) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getCriteriaBuilder(EntityManagerFactoryImpl.java:478) ~[org.eclipse.persistence.jpa_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at com.sun.enterprise.container.common.impl.EntityManagerFactoryWrapper.getCriteriaBuilder(EntityManagerFactoryWrapper.java:109) ~[container-common.jar:3.0.1]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.6.0_16]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) ~[na:1.6.0_16]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ~[na:1.6.0_16]
        at java.lang.reflect.Method.invoke(Method.java:597) ~[na:1.6.0_16]
        at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:176) ~[org.springframework.orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
        at $Proxy188.getCriteriaBuilder(Unknown Source) ~[na:na]
        at com.company.wire.config.AbstractJpaConfigurationRepository.load(AbstractJpaConfigurationRepository.java:139) ~[wire-core-1.1.0.jar:1.1.0 (r5087)]
        at com.company.devcap.config.impl.ApplicationConfigurationImpl.load(ApplicationConfigurationImpl.java:57) ~[ApplicationConfigurationImpl.class:na]
        at com.company.devcap.config.impl.ApplicationConfigurationImpl.init(ApplicationConfigurationImpl.java:43) ~[ApplicationConfigurationImpl.class:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.6.0_16]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) ~[na:1.6.0_16]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ~[na:1.6.0_16]
        at java.lang.reflect.Method.invoke(Method.java:597) ~[na:1.6.0_16]
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:340) ~[org.springframework.beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:293) ~[org.springframework.beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
        at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:130) ~[org.springframework.beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
        ... 84 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.company.wire.data.AbstractDataObject
        at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:744) ~[felix.jar:na]
        at org.apache.felix.framework.ModuleImpl.access$100(ModuleImpl.java:61) ~[felix.jar:na]
        at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1656) ~[felix.jar:na]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252) ~[na:1.6.0_16]
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ~[na:1.6.0_16]
        at java.lang.Class.forName0(Native Method) ~[na:1.6.0_16]
        at java.lang.Class.forName(Class.java:247) ~[na:1.6.0_16]
        at org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(PrivilegedAccessHelper.java:88) ~[org.eclipse.persistence.core_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        at org.eclipse.persistence.descriptors.ClassDescriptor.convertClassNamesToClasses(ClassDescriptor.java:1230) ~[org.eclipse.persistence.core_2.1.1.v20100817-r8050.jar:2.1.1.v20100817-r8050]
        ... 109 common frames omitted

[Updated on: Thu, 25 November 2010 10:03] by Moderator

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #646398 is a reply to message #641455]

Thu, 23 December 2010 13:02

Eclipse User

Mickael,
Hi, I have updated bug # 332290 with the following.
Essentially - could you try upgrading past SVN rev # 8142

thank you
/Michael
http://www.eclipselink.org

https://bugs.eclipse.org/bugs/show_bug.cgi?id=332290#c5

>This issue is very likely a reproduction of the uninitialized javaClass from javaClassNam that we would like to narrow down with a good test case.
There are 2 details to be aware of...
1) in SVN rev# 8141 v20100904 a change for bug # 322485 was put in to force
initializeDescriptors() on an early predeploy() (and set the javaClass
preemptively) in case a getMetamodel() or getCriteriaBuilder() is called on an
EntityManagerFactory before we have an EntityManager session running.
https://fisheye2.atlassian.com/changelog/eclipselink/?cs=814 2
https://bugs.eclipse.org/bugs/show_bug.cgi?id=322585
2) If you are still seeing a an issue after upgrading past the 8141 revision of
EclipseLink then either this or bug # 303063 or bug # 322585 should be
reopened.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=303063#c25

The message "The metamodel TypeImpl.javaClass field should not be set to null
for the Type" warning is a final catch-all to track any instances of bug #
303063 that still occur after a forced EMF predeploy() of the metamodel

>I am not duplicating this bug at this point to bug # 303063 until post rev # 8142 testing is done

Re: EclipseLink-7198, Class was not found while converting from class names to classes [message #648644 is a reply to message #543435]

Thu, 13 January 2011 13:47

Eclipse User

Mikael,
I see that bug# 332290 has been closed as fixed in EclipseLink 2.1.2 using a version past SVN rev# 8141
thank for verifying this fix of bug# 322585
/Michael O'Brien

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