Unidirectional ManyToMany empty collection
Hi
I have a problem with a Entity with 3 unidirectional ManyToMany collections. The entity is:
public class Media implements Serializable, Comparable<Media> {
..
@javax.persistence.ManyToMany( cascade = { javax.persistence.CascadeType.PERSIST, javax.persistence.CascadeType.MERGE } )
@javax.persistence.JoinTable(name = "nv_media_category", joinColumns = @javax.persistence.JoinColumn(name = "media_id", nullable = false), inverseJoinColumns = @javax.persistence.JoinColumn(name = "category_id", nullable = false))
private Set<Category> categories = new HashSet<Category>();
@javax.persistence.ManyToMany( cascade = { javax.persistence.CascadeType.PERSIST, javax.persistence.CascadeType.MERGE } )
@javax.persistence.JoinTable(name = "nv_media_content", joinColumns = @javax.persistence.JoinColumn(name = "media_id", nullable = false), inverseJoinColumns = @javax.persistence.JoinColumn(name = "content_id", nullable = false))
private Set<Content> contents = new HashSet<Content>();
@javax.persistence.ManyToMany( cascade = { javax.persistence.CascadeType.PERSIST, javax.persistence.CascadeType.MERGE } )
@javax.persistence.JoinTable(name = "nv_media_comment", joinColumns = @javax.persistence.JoinColumn(name = "media_id", nullable = false), inverseJoinColumns = @javax.persistence.JoinColumn(name = "comment_id", nullable = false))
private Set<Comment> comments = new HashSet<Comment>();
..
}
The problem is when create a new Media Entity and the collection comments is empty the follow code give a exception in the emanager.flush();
try {
emanager.persist(media);
emanager.flush();
} catch (Exception ex) {
throw new MediaDaoException(ex);
}
the exception:
11:15:21,690 ERROR [MediaServiceBase] [create]Exception: com.dnovae.nova.core.media.MediaDaoException: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment 11:15:21,690 INFO [PhaseInterceptorChain] Interceptor has thrown exception, unwinding now java.lang.RuntimeException: com.dnovae.nova.common.media.MediaServiceException: com.dnovae.nova.core.media.MediaDaoException: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment at org.jboss.wsf.stack.cxf.AbstractInvoker.handleException(AbstractInvoker.java:149) at org.jboss.wsf.stack.cxf.AbstractInvoker.invoke(AbstractInvoker.java:118) at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:56) at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37) at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:92) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:208) at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:77) at org.apache.cxf.transport.servlet.ServletDestination.doMessage(ServletDestination.java:79) at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:264) at org.jboss.wsf.stack.cxf.ServletControllerExt.invoke(ServletControllerExt.java:133) at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:63) at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:136) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:856) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:566) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508) at java.lang.Thread.run(Thread.java:595) Caused by: com.dnovae.nova.common.media.MediaServiceException: com.dnovae.nova.core.media.MediaDaoException: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment at com.dnovae.nova.core.media.MediaServiceBase.create(MediaServiceBase.java:77) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:166) at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:115) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.wsf.container.jboss42.InvocationHandlerEJB3.invoke(InvocationHandlerEJB3.java:103) at org.jboss.wsf.stack.cxf.AbstractInvoker.invoke(AbstractInvoker.java:113) ... 29 more Caused by: com.dnovae.nova.core.media.MediaDaoException: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment at com.dnovae.nova.core.media.MediaDaoBase.create(MediaDaoBase.java:257) 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.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:166) at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptor.invoke(RoleBasedAuthorizationInterceptor.java:115) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:240) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:210) at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:84) at $Proxy183.create(Unknown Source) at com.dnovae.nova.core.media.MediaServiceBean.handleCreate(MediaServiceBean.java:41) at com.dnovae.nova.core.media.MediaServiceBase.create(MediaServiceBase.java:74) ... 60 more Caused by: javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:629) at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:218) at org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:182) at com.dnovae.nova.core.media.MediaDaoBase.create(MediaDaoBase.java:253) ... 95 more Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.dnovae.nova.core.comment.Comment.comment at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121) at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131) at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87) at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:609) at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:601) at org.hibernate.engine.CascadingAction$8.cascade(CascadingAction.java:295) at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169) at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296) at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242) at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219) at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169) at org.hibernate.engine.Cascade.cascade(Cascade.java:130) at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:334) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121) at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131) at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87) at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38) at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618) at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592) at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:596) at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:212) ... 97 more
Please, can somebody help me.
Thanks.