3 Replies Latest reply on Oct 26, 2007 6:49 AM by Pete Muir

    TransientObjectException in seamspace-like approach

    Andreas Franke Apprentice

      Hi, I try to use a User/UserRole relation and took the seam-space as example

      I have a UserRole entity with some predefined rolenames in database

      UserRole class:

      @Entity
      @Name("userroles")
      public class UserRole implements Serializable {
      
       /**
       *
       */
       private static final long serialVersionUID = -8632996340533021763L;
       private Long id;
       private Integer version;
       private String name;
      
       @Id @GeneratedValue
       public Long getId() {
       return id;
       }
      
       public void setId(Long id) {
       this.id = id;
       }
      
       @Version
       public Integer getVersion() {
       return version;
       }
      
       @SuppressWarnings("unused")
       private void setVersion(Integer version) {
       this.version = version;
       }
      
       @Length(max=20)
       public String getName() {
       return name;
       }
      
       public void setName(String name) {
       this.name = name;
       }
      }



      and a User class as counterpart
      @Entity
      @Name("user")
      @Table(name = "user", catalog = "oats")
      public class User implements java.io.Serializable {
      
       /**
       *
       */
       private static final long serialVersionUID = 1L;
       private long id;
       private Long version;
       private String userName;
       private String email;
       private Set<UserRole> userRoles;
      
       public User() {
       }
      
       public User(long id) {
       this.id = id;
       }
      
       @Id @GeneratedValue
       public long getId() {
       return this.id;
       }
      
       public void setId(long id) {
       this.id = id;
       }
      
       @Column(name = "version")
       public Long getVersion() {
       return this.version;
       }
      
       public void setVersion(Long version) {
       this.version = version;
       }
      
       @Column(name = "username", unique = true)
       @NotEmpty
       public String getUserName() {
       return this.userName;
       }
      
       public void setUserName(String username) {
       this.userName = username;
       }
      
       @Column(name = "email")
       @Email(message="Email")
       @NotEmpty
       public String getEmail() {
       return this.email;
       }
      
       public void setEmail(String email) {
       this.email = email;
       }
      
       @ManyToMany
       @JoinTable(name = "userroles", joinColumns = @JoinColumn(name = "USER_ID"), inverseJoinColumns = @JoinColumn(name = "ROLE_ID"))
       public Set<UserRole> getUserRoles() {
       return userRoles;
       }
      
       public void setUserRoles(Set<UserRole> userroles) {
       this.userRoles = userroles;
       }
      
      }



      Than I have a wizard(with a4j:include) to create new users with the predefined userroles.
      (user data are based on existing values from database)

      first step:
      <div class="navPanel">
       <h:outputLabel for="gpid" value="GP-Id"></h:outputLabel>
       <h:inputText id="gpid" value="#{user.userName}"></h:inputText>
       <a4j:commandButton value="Next >>" action="#{register.searchGpId}"/>
       </div>


      @Begin
       public String searchGpId() {
       String query = "from Csy20oats y20 where y20gpnum like '" +user.getUserName() +"'";
       userSearchResults = entitymanager.createQuery(query).getResultList();
       return "next";
       }


      these results are displayed in a datatable and one record can be used to select user data
      <div class="navPanel">
      
       <rich:scrollableDataTable
       rows="10"
       id="userresultdatatable"
       var="data"
       value="#{register.userSearchResults}">
       <rich:column width="50px">
       <f:facet name="header"><h:outputText value="GP-Id"></h:outputText></f:facet>
       <h:outputText value="#{data.y20gpnum}"></h:outputText>
       </rich:column>
       <rich:column width="150px">
       <f:facet name="header"><h:outputText value="Name"></h:outputText></f:facet>
       <h:outputText value="#{data.y21kname}"></h:outputText>
       </rich:column>
       <rich:column width="75px">
       <f:facet name="header"><h:outputText value="Aktion"></h:outputText></f:facet>
       <a:commandLink id="userselectlink" action="#{register.selectUser(data)}" value="Ausweahlen"></a:commandLink>
       </rich:column>
      
       </rich:scrollableDataTable>
       </div>
      


      public String selectUser(Csy20oats selectedUser) {
       setAllFields(selectedUser);
       return "next";
       }
      
       @SuppressWarnings("unchecked")
       private void setAllFields(Csy20oats selectedUser) {
       List<Csy20oats> rs = entitymanager.createQuery("from Csy20oats y20 where y20.y20gpnum=" +selectedUser.getY20gpnum()).getResultList();
       userroles = new HashSet<UserRole>();
       for(Csy20oats y20 : rs){
       if(y20.getY20y20s0().substring(0, 1).toLowerCase().equals("k")){
       UserRole ur = (UserRole)entitymanager.createQuery("from UserRole ur where ur.name = 'akzeptanz'").getSingleResult();
       //this.user.getUserRoles().add(ur);
       userroles.add(ur);
       }else if(y20.getY20y20s0().substring(0, 1).toLowerCase().equals("d")){
       UserRole ur = (UserRole)entitymanager.createQuery("from UserRole ur where ur.name = 'beherbergung'").getSingleResult();
       //this.user.getUserRoles().add(ur);
       userroles.add(ur);
       }else if(y20.getY20y20s0().substring(0, 1).toLowerCase().equals("s")){
       UserRole ur = (UserRole)entitymanager.createQuery("from UserRole ur where ur.name = 'gemeinde'").getSingleResult();
       //this.user.getUserRoles().add(ur);
       userroles.add(ur);
       }
       }
       }
      


      in last step I can edit and save the data
      <div class="navPanel">
      
       <h:outputLabel value="Name" for="username"></h:outputLabel>
       <h:inputText id="username" value="#{user.userName}"></h:inputText>
       <br/>
       <h:outputLabel value="E-Mail" for="email"></h:outputLabel>
       <h:inputText id="email" value="#{user.email}"></h:inputText>
       <br/>
       <rich:spacer height="2" id="userspacer"></rich:spacer>
       <rich:separator lineType="dashed"></rich:separator>
      
       <a:commandButton value="Registrieren" action="#{register.register}"/>
      
       </div>
      


      @End
       public String register()
       {
       this.user.setUserRoles(userroles);
       try {
       entitymanager.persist(this.user);
       } catch (Exception e) {
       e.printStackTrace();
       }
       return "next";
       }
      


      I think it's exact the same as in seamspace but I get the following error:
      09:11:10,472 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session
      org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: de.oats.model.UserRole
       at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
       at org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
       at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:78)
       at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:755)
       at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1143)
       at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:26)
       at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:145)
       at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
       at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
       at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
       at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
       at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515)
       at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:114)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:247)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:86)
       at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1382)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135)
       at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87)
       at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:140)
       at org.jboss.seam.transaction.UTTransaction.commit(UTTransaction.java:52)
       at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:582)
       at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsAfterPhase(SeamPhaseListener.java:325)
       at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:226)
       at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:184)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:280)
       at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
       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:241)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
       at java.lang.Thread.run(Thread.java:619)
      09:11:10,492 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator_2] TwoPhaseCoordinator.beforeCompletion - failed for com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple@1375021
      java.lang.IllegalStateException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: de.oats.model.UserRole
       at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:626)
       at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:524)
       at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:114)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:247)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:86)
       at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1382)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135)
       at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87)
       at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:140)
       at org.jboss.seam.transaction.UTTransaction.commit(UTTransaction.java:52)
       at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:582)
       at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsAfterPhase(SeamPhaseListener.java:325)
       at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:226)
       at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:184)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:280)
       at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
       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:241)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
       at java.lang.Thread.run(Thread.java:619)
      Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: de.oats.model.UserRole
       at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
       at org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
       at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:78)
       at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:755)
       at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1143)
       at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:26)
       at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:145)
       at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
       at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
       at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
       at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
       at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515)
       ... 53 more
      09:11:10,612 ERROR [SeamPhaseListener] uncaught exception
      java.lang.IllegalStateException: Could not commit transaction
       at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:592)
       at org.jboss.seam.jsf.SeamPhaseListener.handleTransactionsAfterPhase(SeamPhaseListener.java:325)
       at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:226)
       at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:184)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:280)
       at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
       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:241)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
       at java.lang.Thread.run(Thread.java:619)
      Caused by: javax.transaction.RollbackException: [com.arjuna.ats.internal.jta.transaction.arjunacore.commitwhenaborted] [com.arjuna.ats.internal.jta.transaction.arjunacore.commitwhenaborted] Can't commit because the transaction is in aborted state
       at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1394)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:135)
       at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:87)
       at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:140)
       at org.jboss.seam.transaction.UTTransaction.commit(UTTransaction.java:52)
       at org.jboss.seam.jsf.SeamPhaseListener.commitOrRollback(SeamPhaseListener.java:582)
       ... 43 more
      Caused by: java.lang.IllegalStateException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: de.oats.model.UserRole
       at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:626)
       at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:524)
       at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:114)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:247)
       at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:86)
       at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:177)
       at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1382)
       ... 48 more
      Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: de.oats.model.UserRole
       at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
       at org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
       at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:78)
       at org.hibernate.persister.collection.AbstractCollectionPersister.writeElement(AbstractCollectionPersister.java:755)
       at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1143)
       at org.hibernate.action.CollectionRecreateAction.execute(CollectionRecreateAction.java:26)
       at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234)
       at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:145)
       at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
       at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
       at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
       at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
       at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515)
       ... 53 more


      If I use ManyToMany(cascade=CascadeType.PERSIST) there is no error but new UserRole entries are created(I don' want new roles)

      What's diffrent in seam-space example OR better, what can I do prevent this error?