[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-3945) Envers using inheritance gives NullPointer

Envers using inheritance gives NullPointer ------------------------------------------ Key: HHH-3945 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3945 Project: Hibernate Core Issue Type: Bug Components: envers Affects Versions: 3.5.0.Beta-1 Environment: 3.2.6.ga Oracle 10g Reporter: robbie123456 Assignee: Adam Warski Using Envers version 3.5.0-SNAPSHOT: class A extends from B. They both have @Entity and B has with @Inheritance(strategy=InheritanceType.JOINED), so fields in the subclass A have a separate table. When only setting A to @Audited, I get following NullPointerException (found closed JIRA ticket: https://jira.jboss.org/jira/browse/ENVERS-71): Caused by: java.lang.NullPointerException at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateInheritanceMappingData(AuditMetadataGenerator.java:253) at org.hibernate.envers.configuration.metadata.AuditMetadataGenerator.generateFirstPass(AuditMetadataGenerator.java:301) at org.hibernate.envers.configuration.EntitiesConfigurator.configure(EntitiesConfigurator.java:87) at org.hibernate.envers.configuration.AuditConfiguration.<init>(AuditConfiguration.java:86) at org.hibernate.envers.configuration.AuditConfiguration.getFor(AuditConfiguration.java:99) at org.hibernate.envers.event.AuditEventListener.initialize(AuditEventListener.java:259) at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:356) at org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1304) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334) ... 39 more NullPointerException happens here because 'entitiesConfigurations' is empty: String parentEntityName = pc.getSuperclass().getEntityName(); ExtendedPropertyMapper parentPropertyMapper = entitiesConfigurations.get(parentEntityName).getPropertyMapper(); When also putting @Audited to the superclass B, I get following exception (also found on Hibernate JIRA ticket: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3647): org.hibernate.HibernateException: instance not of expected entity type: java.util.HashMap is not a: B_AUD at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(AbstractEntityPersister.java:3635) at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1347) at org.hibernate.id.Assigned.generate(Assigned.java:28) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172) at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70) at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523) at org.hibernate.envers.synchronization.work.ModWorkUnit.perform(ModWorkUnit.java:60) at org.hibernate.envers.synchronization.AuditSync.executeInSession(AuditSync.java:126) at org.hibernate.envers.synchronization.AuditSync.beforeCompletion(AuditSync.java:150) at org.hibernate.transaction.JDBCTransaction.notifyLocalSynchsBeforeTransactionCompletion(JDBCTransaction.java:228) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:109) at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:655) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:709) at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:678) at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:321) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at net.x.prl.services.common.audit.UserAuditInterceptor.invoke(UserAuditInterceptor.java:32) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at net.x.prl.services.common.ServiceExceptionInterceptor.invoke(ServiceExceptionInterceptor.java:34) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at $Proxy114.updateQuantityOnSalesForecastLine(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:585) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149) at org.springframework.remoting.support.RemoteInvocationTraceInterceptor.invoke(RemoteInvocationTraceInterceptor.java:70) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at $Proxy114.updateQuantityOnSalesForecastLine(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.springframework.remoting.support.RemoteInvocation.invoke(RemoteInvocation.java:205) at org.springframework.remoting.support.DefaultRemoteInvocationExecutor.invoke(DefaultRemoteInvocationExecutor.java:38) at org.springframework.remoting.support.RemoteInvocationBasedExporter.invoke(RemoteInvocationBasedExporter.java:78) at net.x.buildit.middleware.jms.lingo.listener.EndpointExporterMessageListener.invokeAndCreateResult(EndpointExporterMessageListener.java:151) at net.x.buildit.middleware.jms.lingo.listener.EndpointExporterMessageListener.doInvoke(EndpointExporterMessageListener.java:106) at org.logicblaze.lingo.jms.JmsServiceExporterMessageListener.onMessage(JmsServiceExporterMessageListener.java:102) at net.x.buildit.middleware.jms.lingo.listener.EndpointExporterMessageListener.onMessage(EndpointExporterMessageListener.java:220) at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:531) at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:466) at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:435) at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:322) at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:260) at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:944) at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:868) at java.lang.Thread.run(Thread.java:595) Using Envers with entity classes without inheriting from another entity, gives no problem.