好的,我在正在处理的应用程序中收到上述异常。我正在使用JPA并hibernate。这是堆栈跟踪:
WARNING: #{commissionController.saveCommission}: javax.persistence.PersistenceException: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed javax.faces.FacesException: #{commissionController.saveCommission}: javax.persistence.PersistenceException: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) at org.apache.myfaces.extensions.cdi.jsf.impl.security.SecurityViolationAwareActionListener.processAction(SecurityViolationAwareActionListener.java:56) at org.apache.myfaces.extensions.cdi.jsf.impl.config.view.ViewControllerActionListener.processAction(ViewControllerActionListener.java:68) at org.apache.myfaces.extensions.cdi.jsf.impl.listener.action.CodiActionListener.processAction(CodiActionListener.java:58) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at org.apache.myfaces.extensions.cdi.jsf2.impl.listener.phase.CodiLifecycleWrapper.execute(CodiLifecycleWrapper.java:95) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: javax.faces.el.EvaluationException: javax.persistence.PersistenceException: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) ... 27 more Caused by: javax.persistence.PersistenceException: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1377) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1300) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1306) at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:888) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:45) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:105) at org.jboss.weld.proxies.EntityManager$1148094400$Proxy$_$$_WeldClientProxy.merge(EntityManager$1148094400$Proxy$_$$_WeldClientProxy.java) at se.raindance.persistence.RaindanceBaseHomeImpl.update(RaindanceBaseHomeImpl.java:57) at se.raindance.purchasecommission.home.CommissionHome.update(CommissionHome.java:59) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.update(CommissionHome$Proxy$_$$_WeldSubclass.java) at se.raindance.persistence.RaindanceBaseHomeImpl.persist(RaindanceBaseHomeImpl.java:67) at se.raindance.purchasecommission.home.CommissionHome.persist(CommissionHome.java:43) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.persist(CommissionHome$Proxy$_$$_WeldSubclass.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:85) at org.jboss.weld.interceptor.proxy.InterceptorInvocationContext.proceed(InterceptorInvocationContext.java:127) at org.apache.myfaces.extensions.cdi.jpa.impl.transaction.TransactionalInterceptorStrategy.execute(TransactionalInterceptorStrategy.java:125) at org.apache.myfaces.extensions.cdi.jpa.impl.transaction.TransactionalInterceptor.executeInTransaction(TransactionalInterceptor.java:54) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.interceptor.proxy.SimpleMethodInvocation.invoke(SimpleMethodInvocation.java:30) at org.jboss.weld.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:69) at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:112) at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:88) at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:55) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.persist(CommissionHome$Proxy$_$$_WeldSubclass.java) at se.raindance.purchasecommission.controller.CommissionController.saveCommission(CommissionController.java:139) at se.raindance.purchasecommission.controller.CommissionController$Proxy$_$$_WeldClientProxy.saveCommission(CommissionController$Proxy$_$$_WeldClientProxy.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.el.parser.AstValue.invoke(AstValue.java:278) at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274) at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39) at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) ... 28 more Caused by: org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:489) at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:447) at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:139) at org.hibernate.collection.internal.PersistentBag.isEmpty(PersistentBag.java:249) at se.raindance.purchasecommission.domain.Form.removeHiddenFields(Form.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:39) at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:110) at org.hibernate.ejb.event.EntityCallbackHandler.postLoad(EntityCallbackHandler.java:103) at org.hibernate.ejb.event.EJB3PostLoadEventListener.onPostLoad(EJB3PostLoadEventListener.java:49) at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:292) at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:134) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:999) at org.hibernate.loader.Loader.doQuery(Loader.java:878) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:293) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:263) at org.hibernate.loader.Loader.loadEntity(Loader.java:1977) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:82) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:72) at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3821) at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:458) at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:427) at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:204) at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:260) at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:148) at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1079) at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1006) at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:613) at org.hibernate.type.EntityType.resolve(EntityType.java:441) at org.hibernate.type.EntityType.replace(EntityType.java:298) at org.hibernate.type.AbstractType.replace(AbstractType.java:178) at org.hibernate.type.TypeHelper.replace(TypeHelper.java:211) at org.hibernate.event.internal.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:409) at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:214) at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:154) at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:76) at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:904) at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:888) at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:892) at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:879) ... 71 more feb 20, 2013 11:27:26 FM org.apache.deltaspike.core.api.provider.BeanProvider logWarningIfDependent WARNING: BeanProvider shall not be used to create @Dependent scoped beans. Bean: Managed Bean [class se.raindance.webutil.cdi.common.HandlesGeneric] with qualifiers [@Any @Default] feb 20, 2013 11:27:26 FM org.apache.deltaspike.core.api.provider.BeanProvider logWarningIfDependent WARNING: BeanProvider shall not be used to create @Dependent scoped beans. Bean: Managed Bean [class se.raindance.webutil.cdi.common.HandlesPersistence] with qualifiers [@Any @Default] 2013-02-20 11:27:26,808 [http-bio-8080-exec-8] INFO org.hibernate.event.internal.DefaultLoadEventListener - HHH000327: Error performing load command : org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed 2013-02-20 11:27:26,811 [http-bio-8080-exec-8] WARN org.hibernate.engine.loading.internal.LoadContexts - HHH000100: Fail-safe cleanup (collections) : org.hibernate.engine.loading.internal.CollectionLoadContext@4b2f3792<rs=org.hibernate.engine.jdbc.internal.proxy.ResultSetProxyHandler@3308315a[valid=false]> 2013-02-20 11:27:26,812 [http-bio-8080-exec-8] WARN org.hibernate.engine.loading.internal.CollectionLoadContext - HHH000160: On CollectionLoadContext#cleanup, localLoadingCollectionKeys contained [1] entries 2013-02-20 11:27:26,822 [http-bio-8080-exec-8] ERROR se.raindance.webutil.cdi.common.HandlesGeneric - Printing stacktrace: -91600366 org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:489) at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:447) at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:139) at org.hibernate.collection.internal.PersistentBag.isEmpty(PersistentBag.java:249) at se.raindance.purchasecommission.domain.Form.removeHiddenFields(Form.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:39) at org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:110) at org.hibernate.ejb.event.EntityCallbackHandler.postLoad(EntityCallbackHandler.java:103) at org.hibernate.ejb.event.EJB3PostLoadEventListener.onPostLoad(EJB3PostLoadEventListener.java:49) at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:292) at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:134) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:999) at org.hibernate.loader.Loader.doQuery(Loader.java:878) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:293) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:263) at org.hibernate.loader.Loader.loadEntity(Loader.java:1977) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:82) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:72) at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3821) at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:458) at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:427) at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:204) at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:260) at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:148) at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1079) at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1006) at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:613) at org.hibernate.type.EntityType.resolve(EntityType.java:441) at org.hibernate.type.EntityType.replace(EntityType.java:298) at org.hibernate.type.AbstractType.replace(AbstractType.java:178) at org.hibernate.type.TypeHelper.replace(TypeHelper.java:211) at org.hibernate.event.internal.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:409) at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:214) at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:154) at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:76) at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:904) at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:888) at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:892) at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:879) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:45) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:105) at org.jboss.weld.proxies.EntityManager$1148094400$Proxy$_$$_WeldClientProxy.merge(EntityManager$1148094400$Proxy$_$$_WeldClientProxy.java) at se.raindance.persistence.RaindanceBaseHomeImpl.update(RaindanceBaseHomeImpl.java:57) at se.raindance.purchasecommission.home.CommissionHome.update(CommissionHome.java:59) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.update(CommissionHome$Proxy$_$$_WeldSubclass.java) at se.raindance.persistence.RaindanceBaseHomeImpl.persist(RaindanceBaseHomeImpl.java:67) at se.raindance.purchasecommission.home.CommissionHome.persist(CommissionHome.java:43) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.persist(CommissionHome$Proxy$_$$_WeldSubclass.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:85) at org.jboss.weld.interceptor.proxy.InterceptorInvocationContext.proceed(InterceptorInvocationContext.java:127) at org.apache.myfaces.extensions.cdi.jpa.impl.transaction.TransactionalInterceptorStrategy.execute(TransactionalInterceptorStrategy.java:125) at org.apache.myfaces.extensions.cdi.jpa.impl.transaction.TransactionalInterceptor.executeInTransaction(TransactionalInterceptor.java:54) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.jboss.weld.interceptor.proxy.SimpleMethodInvocation.invoke(SimpleMethodInvocation.java:30) at org.jboss.weld.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:69) at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:112) at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:88) at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:55) at se.raindance.purchasecommission.home.CommissionHome$Proxy$_$$_WeldSubclass.persist(CommissionHome$Proxy$_$$_WeldSubclass.java) at se.raindance.purchasecommission.controller.CommissionController.saveCommission(CommissionController.java:139) at se.raindance.purchasecommission.controller.CommissionController$Proxy$_$$_WeldClientProxy.saveCommission(CommissionController$Proxy$_$$_WeldClientProxy.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.apache.el.parser.AstValue.invoke(AstValue.java:278) at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274) at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39) at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) at org.apache.myfaces.extensions.cdi.jsf.impl.security.SecurityViolationAwareActionListener.processAction(SecurityViolationAwareActionListener.java:56) at org.apache.myfaces.extensions.cdi.jsf.impl.config.view.ViewControllerActionListener.processAction(ViewControllerActionListener.java:68) at org.apache.myfaces.extensions.cdi.jsf.impl.listener.action.CodiActionListener.processAction(CodiActionListener.java:58) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at org.apache.myfaces.extensions.cdi.jsf2.impl.listener.phase.CodiLifecycleWrapper.execute(CodiLifecycleWrapper.java:95) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722)
调试时,我注意到它似乎来自Form实体中的部分代码:
@PostLoad public void removeHiddenFields() { if(fields.isEmpty()) { return;//don't do anything if there are no fields } for(int i = 0; i < fields.size(); i++) { if(fields.get(i).isHidden()) { fields.remove(fields.get(i)); } } }
“ fields.isEmpty()”部分将异常向上抛出。
据我所读,这应该可以通过设置要热切获取的集合来解决。我认为问题是字段集合。但是…
@JoinColumn(name = "FORM") @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER) private List<Field> fields = new ArrayList<Field>();
它已经很热闹。这样做是为了解决开发早期遇到的另一个问题。
可能是什么问题呢?
添加:
Form实体按以下方式加载:
有一个类处理Form实体的数据库查询。有两种方法可以从数据库中获取它们(取决于表单的类型)。
public List<Form> getAllActiveForms() { TypedQuery<Form> query = this.getEntityManager().createNamedQuery( "getAllActiveForms", Form.class); return query.getResultList(); } public List<Form> getAllInactiveForms() { TypedQuery<Form> query = this.getEntityManager().createNamedQuery( "getAllInactiveForms", Form.class); return query.getResultList(); }
命名查询是在Form实体上定义的:
@NamedQueries({ @NamedQuery(name = "getAllActiveForms", query = "SELECT f FROM Form f WHERE f.isEnabled=true"), @NamedQuery(name = "getAllInactiveForms", query = "SELECT f FROM Form f WHERE f.isEnabled=false") })
从这些列表之一中选择函数中使用的“ currentForm”。
我现在还注意到,应用程序中的另一个函数可以简单地更新Form,现在会抛出相同类型的异常。这次它来自merge()函数:
@Transactional public Form updateAndReturn() { getInstance().setTimestamp(System.currentTimeMillis()); Form f = getEntityManager().merge(getInstance()); getEntityManager().flush(); return f; }
这是由Hibernate中的错误引起的。在这里找到它:http : //issues.jboss.org/browse/JBAS-5474
它从4.1.8版本开始工作(https://hibernate.onjira.com/browse/HHH-6043)
问题出在@PostLoad上,它显然没有按正确的顺序执行操作。