验证失败后，为什么从Hibernate收到UnsupportedOperationException？我希望有一个ConstraintViolationException。
以下是我的DAO。通过验证后即可正常工作。我正在使用Hibernate和Hibernate Validator4。我正在使用Websphere 8.0。我认为WebSphereExtendedJtaPlatform是元凶，但我不知道为什么。
如果我看一下所谓的WebSphereExtendedJtaPlatform的源代码（该源的跟踪链接），那么看起来那里的大多数方法只是抛出UnsupportedOperationException。
http://grepcode.com/file/repo1.maven.org/maven2/org.hibernate/hibernate- core/4.0.0.CR1/org/hibernate/service/jta/platform/internal/WebSphereExtendedJtaPlatform.java
这是我的堆栈跟踪：
org.hibernate.AssertionFailure <init> HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: null id in com.westfieldgrp.beanvalidation.persistence.Car entry (don't flush the Session after an exception occurs) [11/14/12 16:48:48:785 EST] 00000020 RegisteredSyn E WTRN0074E: Exception caught from before_completion synchronization operation: java.lang.UnsupportedOperationException at org.hibernate.service.jta.platform.internal.WebSphereExtendedJtaPlatform$TransactionManagerAdapter.setRollbackOnly(WebSphereExtendedJtaPlatform.java:139)
我的堆栈跟踪中的另一个有趣的代码片段：
Entity manager factory name (src_persistence) is already registered. If entity manager will be clustered or passivated, specify a unique value for property 'hibernate.ejb.entitymanager_factory_name'
这是课程
package com.westfieldgrp.pom.data.dao; import java.util.ArrayList; import java.util.Set; import javax.faces.application.FacesMessage; import javax.faces.context.FacesContext; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax.persistence.RollbackException; import javax.validation.ConstraintViolation; import javax.validation.ConstraintViolationException; import com.westfieldgrp.beanvalidation.persistence.Car; import com.westfieldgrp.beanvalidation.persistence.Driver; import com.westfieldgrp.beanvalidation.persistence.Person; public class CarDAO { private EntityManager entityManager; public void save(Person convertedPerson, Driver convertedDriver, Car convertedCar, FacesContext facesContext) throws ConstraintViolationException{ EntityManager em = getEntityManager(); //em.setFlushMode(FlushModeType.COMMIT); if("test".equals(convertedPerson.getName())){ // To test JPA validation convertedPerson.setName(null); } //Person savedPerson = em.merge(convertedPerson); try { //em.merge(convertedPerson); em.persist(convertedPerson); em.flush(); } catch (Exception e) { System.out.println("*******" + getRootCause(e)); } } private String getRootCause(Throwable e){ if(e.getCause() != null){ return getRootCause(e.getCause()); } else { return e.toString(); } } public EntityManager getEntityManager() { EntityManagerFactory emf = Persistence.createEntityManagerFactory("src_persistence"); entityManager = emf.createEntityManager(); return entityManager; } public void setEntityManager(EntityManager entityManager) { this.entityManager = entityManager; } }
人物实体：
package com.westfieldgrp.beanvalidation.persistence; import java.io.Serializable; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; import javax.validation.constraints.NotNull; import javax.validation.constraints.Pattern; import org.hibernate.validator.constraints.Length; /** * The persistent class for the PERSON database table. * */ @Entity @Table(name="PERSON") public class Person implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy=GenerationType.AUTO) @Column(name="PERSON_ID") private int personId; @Column(name="NAME") @NotNull(message = "A name is required.") //@Length(min = 5, message = "Need a longer name.") private String name; @Column(name="EMAIL") @NotNull(message = "An email is required.") //@Pattern(regexp="[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", message="Invalid email format.") private String email; public Person() { } public int getPersonId() { return this.personId; } public void setPersonId(int personId) { this.personId = personId; } public String getName() { return this.name; } public void setName(String name) { this.name = name; } public void setEmail(String email) { this.email = email; } public String getEmail() { return email; } }
整个堆栈跟踪：
[11/14/12 19:00:53:202 EST] 0000003c EntityManager Z org.hibernate.ejb.internal.EntityManagerFactoryRegistry addEntityManagerFactory HHH000436: Entity manager factory name (src_persistence) is already registered. If entity manager will be clustered or passivated, specify a unique value for property 'hibernate.ejb.entitymanager_factory_name' [11/14/12 19:00:53:214 EST] 0000003c SystemOut O *******java.lang.UnsupportedOperationException [11/14/12 19:00:53:214 EST] 0000003c AssertionFail Z org.hibernate.AssertionFailure <init> HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: null id in com.westfieldgrp.beanvalidation.persistence.Person entry (don't flush the Session after an exception occurs) [11/14/12 19:00:53:215 EST] 0000003c RegisteredSyn E WTRN0074E: Exception caught from before_completion synchronization operation: java.lang.UnsupportedOperationException at org.hibernate.service.jta.platform.internal.WebSphereExtendedJtaPlatform$TransactionManagerAdapter.setRollbackOnly(WebSphereExtendedJtaPlatform.java:139) at org.hibernate.engine.transaction.internal.jta.CMTTransaction.markRollbackOnly(CMTTransaction.java:131) at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.setRollbackOnly(TransactionCoordinatorImpl.java:305) at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.setRollbackOnly(SynchronizationCallbackCoordinatorImpl.java:118) at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:108) at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) at org.hibernate.service.jta.platform.internal.WebSphereExtendedJtaPlatform$TransactionManagerAdapter$TransactionAdapter$1.invoke(WebSphereExtendedJtaPlatform.java:176) at $Proxy56.beforeCompletion(Unknown Source) at com.ibm.ws.jtaextensions.SynchronizationCallbackWrapper.beforeCompletion(SynchronizationCallbackWrapper.java:66) at com.ibm.tx.jta.impl.RegisteredSyncs.coreDistributeBefore(RegisteredSyncs.java:291) at com.ibm.ws.tx.jta.RegisteredSyncs.distributeBefore(RegisteredSyncs.java:152) at com.ibm.ws.tx.jta.TransactionImpl.prePrepare(TransactionImpl.java:2332) at com.ibm.ws.tx.jta.TransactionImpl.stage1CommitProcessing(TransactionImpl.java:553) at com.ibm.tx.jta.impl.TransactionImpl.processCommit(TransactionImpl.java:1014) at com.ibm.tx.jta.impl.TransactionImpl.commit(TransactionImpl.java:948) at com.ibm.ws.tx.jta.TranManagerImpl.commit(TranManagerImpl.java:379) at com.ibm.tx.jta.impl.TranManagerSet.commit(TranManagerSet.java:181) at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:922) at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:234) at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:579) at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:4755) at com.westfieldgrp.ejb.EJSLocalNSLCarSessionBean_f700c086.save(EJSLocalNSLCarSessionBean_f700c086.java) at com.westfieldgrp.beans.CarBean.processCar(CarBean.java:35) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at org.apache.el.parser.AstValue.invoke(AstValue.java:262) at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278) at org.apache.myfaces.view.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:83) at javax.faces.component._MethodExpressionToMethodBinding.invoke(_MethodExpressionToMethodBinding.java:88) at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:100) at javax.faces.component.UICommand.broadcast(UICommand.java:120) at javax.faces.component.UIViewRoot._broadcastAll(UIViewRoot.java:973) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:275) at javax.faces.component.UIViewRoot._process(UIViewRoot.java:1285) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:711) at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:34) at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:171) at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:189) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1147) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:722) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:449) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1020) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:87) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:883) at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1659) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305) at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1648)
我最终根据以下链接修改了WebSphereExtendedJtaPlatform代码。我很困惑为什么该类基本上没有实现。
https://forum.hibernate.org/viewtopic.php?f=1&t=992310
