javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of Entity.id
14,714
Solution 1
I have the same issue. This bug seems to have started with HB 4.3.6 and has survived, I am trying 4.3.10; with the same results.
It seems to me that the way entities' fields are accessed changed in HB 4.3.6+, probably related with the class loader. Prior to HB 4.3.6, embedding the DB driver jar file in the ear file works fine (very easy and clean for deployment). After 4.3.6, it doesn't work (with a class not found exception), now the driver jar file has to be put in the lib folder of Glassfish.
Juan
Solution 2
That come from a classloader issue, when hibernate load initial class on deployment, a dummy classLoader is created to build catalogue. When your are at runtime, the class in the catalogue doesn't have the same class loader and the method of sun.reflect.UnsafeFieldAccessorImpl.ensureObj failed.
protected void ensureObj(Object obj)
{
if(!field.getDeclaringClass().isAssignableFrom(obj.getClass()))
{
throwSetIllegalArgumentException(obj);
}
}
This method is called from DirectPropertyAccessor$DirectGetter.get(Object) line: 57
I solve the problem in glassfish 4.1 and hibernate-entitymanager-4.3.11.Final.jar by creating a custom jpa provider whose attach the right class loader.
package org.hibernate.jpa;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.PersistenceUnitInfo;
import org.hibernate.jpa.HibernatePersistenceProvider;
/**
* Lazy HibernatePersistenceProvider whose take Thread class loader as source
* and not the dummy one
*
* @author Alexandre Heroux
*
*/
public class LazyHibernatePersistenceProvider extends HibernatePersistenceProvider {
@SuppressWarnings("rawtypes")
@Override
public EntityManagerFactory createContainerEntityManagerFactory(final PersistenceUnitInfo info,
final Map properties) {
return (EntityManagerFactory) Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(),
new Class[] { EntityManagerFactory.class }, new InvocationHandler() {
private EntityManagerFactory entityManagerFactory = null;
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
return method.invoke(getEntityManagerFactory(info, properties), args);
}
/**
* Create the EntityManagerFactory when is not exists
*
* @param info
* @param properties
* @return
*/
protected EntityManagerFactory getEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
if (entityManagerFactory == null) {
synchronized (this) {
if (entityManagerFactory == null) {
entityManagerFactory = LazyHibernatePersistenceProvider.this
.createParentContainerEntityManagerFactory(info, properties);
}
}
}
return entityManagerFactory;
}
});
}
/**
* Call parent method
*
* @param info
* @param properties
* @return
*/
protected EntityManagerFactory createParentContainerEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
return super.createContainerEntityManagerFactory(info, properties);
}
}
Comments
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Abdulrahman Alsoghayer almost 2 years
I've the following entity:
@Entity public class Employee implements Serializable{ private static final long serialVersionUID = 3454567L; @Id @GeneratedValue(strategy=GenerationType.AUTO) private int empId; @Column private String username; public int getEmpId() { return empId; } public void setEmpId(int empId) { this.empId = empId; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } }And the following EJB:
public class UserDAO implements UserDAOInterface{ @PersistenceContext(unitName = "MainPersistenceUnit") private EntityManager em; @Override public void persist(Employee sdf) { try { em.persist(sdf); } catch (Exception e) { Logger.getLogger(getClass().getName()).log(Level.SEVERE, "exception caught", e); throw new RuntimeException(e); } } }When persist is called, an exception with the following root cause is thrown:
Caused by: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.mine.projs.library.entity.Employee.empId at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:60) at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:346) at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4746) at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4465) at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:243) at org.hibernate.event.internal.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:511) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:116) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181) ... 100 moreHere's the full log from GlassFish 4.1:
Info: HHH000204: Processing PersistenceUnitInfo [ name: MainPersistenceUnit ...] Info: HHH000412: Hibernate Core {4.3.7.Final} Info: HHH000206: hibernate.properties not found Info: HHH000021: Bytecode provider name : javassist Info: HCANN000001: Hibernate Commons Annotations {4.0.5.Final} Info: HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect Info: HHH000397: Using ASTQueryTranslatorFactory Info: HHH000227: Running hbm2ddl schema export Info: Hibernate: drop table if exists Employee Info: Hibernate: create table Employee (empId integer not null auto_increment, username varchar(255), primary key (empId)) ENGINE=InnoDB Info: HHH000230: Schema export complete Info: Portable JNDI names for EJB UserService: [java:global/Library/UserService, java:global/Library/UserService!com.mine.projs.library.service.interfaces.UserServiceInterface] WARN: WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.gf.cdi.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds. WARN: WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds. WARN: WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds. Info: Initializing Mojarra 2.2.7 ( 20140610-1547 https://svn.java.net/svn/mojarra~svn/tags/2.2.7@13362) for context '/libr' Info: Running on PrimeFaces 5.1 Info: Loading application [Library] at [/libr] Info: Library was successfully deployed in 3,429 milliseconds. Info: inside getAna Info: inside Create User Severe: exception caught javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.mine.projs.library.entity.Employee.empId at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1763) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1187) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.persist(EntityManagerWrapper.java:287) at com.mine.projs.library.dao.UserDAO.persist(UserDAO.java:20) at com.mine.projs.library.service.UserService.createUSer(UserService.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081) at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786) at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608) at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:46) at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:52) at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163) at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140) at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822) at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369) at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746) at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212) at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88) at com.sun.proxy.$Proxy321.createUSer(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:414) at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:127) at org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56) at org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:65) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100) at com.mine.projs.library.service.UserServiceInterface$243194531$Proxy$_$$_Weld$EnterpriseProxy$.createUSer(Unknown Source) at com.mine.projs.library.view.UserBean.getAna(UserBean.java:29) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at javax.el.BeanELResolver.getValue(BeanELResolver.java:363) at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176) at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203) at com.sun.el.parser.AstValue.getValue(AstValue.java:140) at com.sun.el.parser.AstValue.getValue(AstValue.java:204) at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226) at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50) at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109) at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194) at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182) at javax.faces.component.UICommand.getValue(UICommand.java:218) at com.sun.faces.renderkit.html_basic.ButtonRenderer.encodeBegin(ButtonRenderer.java:119) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:864) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1854) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:456) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545) at java.lang.Thread.run(Thread.java:745) Caused by: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.mine.projs.library.entity.Employee.empId at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:60) at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:346) at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:4746) at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:4465) at org.hibernate.engine.internal.ForeignKeys.isTransient(ForeignKeys.java:243) at org.hibernate.event.internal.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:511) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:116) at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75) at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784) at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181) ... 100 moreHow is this caused and how can I solve it?
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Abdulrahman Alsoghayer over 9 yearsI tried it with no luck. The table gets created in the database no problems. The exception occurs when persisting.
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jfarjona almost 9 yearsJust found the solution. Look at hibernate.atlassian.net/browse/HHH-9446. Add hibernate.classloading.use_current_tccl_as_parent=false in the hibernate.properties file or the persistence.xml file. -
Greyshack over 8 years@ jfarjona OMG you're THE MAN! I spent 10 hours searching for a solution for this. Can you explain what it does?
