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Author Message
flylight
 Post subject: Error Saving ManyToMany Relation into DB with Java Persisten
PostPosted: Sun May 30, 2010 3:55 pm 
Newbie

Joined: Sun May 30, 2010 3:46 pm
Posts: 3
SUBJECT: Error Saving ManyToMany Relation into DB with Java Persistence

:) Hello everyone!
I thank you in advance for the given time and patience.

My Java code follows the steps below:
1. A new user is created
2. A role for the user above is created
3. I'm having trouble to write the role of the user to the DB with a ManyToMany Relation between the tables USER and ROLE. I strongly assume, that I have a problem around the code marked with [COLOR="Magenta"]Magenta color[/COLOR].


See the ERROR generated by JBoss at the end of my post.


Would it be possible for you to check my code for its correctness?


[COLOR="Red"]STEP 1: User.java code, which defines the user for the user table[/COLOR]
Code:
@Entity
    @Name("user")
    public class User {
         private Integer id;
    private String username;
         private Set<Role> roles;
         @Id
         @GeneratedValue
         @Column(name="USER_ID")
         public Integer getId() {
             return id;
         }
         public void setId(Integer id) {
             this.id = id;
         }
         
  //Ystanovka ROLE user'u
  @UserRoles
  @ManyToMany
  @JoinTable(name="UserRoleLink",joinColumns=@JoinColumn(name="USER_ID",referencedColumnName="USER_ID"),
                                 inverseJoinColumns = @JoinColumn(name="ROLE_ID",referencedColumnName="ROLE_ID"))
   public Set<Role> getRoles() {
       return roles;
   }
   public void setRoles(Set<Role> roles) {
       this.roles = roles;
   }

}


[COLOR="Red"]STEP 2: Role.java code, which defines the user role for the table Role[/COLOR]
Code:
@Entity
public class Role {
    private Integer id;
    //Postandartu ROLE = user
    private String name;

    public Role(){ };
    public Role(String name) {
        this.name = name;
    }

    @Id
    @GeneratedValue
    @Column(name="ROLE_ID")
    public Integer getId() {
         return id;
    }
    public void setId(Integer id) {
         this.id = id;
    }
    @RoleName
    public String getName() {
        return name;
    }
    public void setName(String name) {
         this.name = name;
    }

}


[COLOR="Red"]STEP 3: And now RegistrationAction.java[/COLOR]
Code:
@Stateful
@Scope(EVENT)
public class RegistrationAction implements Registration
{
   @In @Out
   private User user;
   [COLOR="Magenta"]
   private Role RoleAsUser;
   private Set <Role> role;
   private User user;
   [/COLOR]
   @PersistenceContext
   private EntityManager em;

   @In
   private FacesMessages facesMessages;

   public void register()
   { 

      RoleAsUser.setId (2);
      RoleAsUser.setName ("user");
      role.add (RoleAsUser);
   [COLOR="Magenta"]
      user.setRole (role);
   [/COLOR]
      em.persist(user);

   }
         
   @Remove
   public void destroy() {}
}


ERROR generated by JBOSS:
Code:
22:25:22,330 INFO  [STDOUT] Hibernate:
22:25:22,331 INFO  [STDOUT]     select
22:25:22,331 INFO  [STDOUT]         user0_.username as col_0_0_
22:25:22,331 INFO  [STDOUT]     from
22:25:22,331 INFO  [STDOUT]         public.User user0_
22:25:22,331 INFO  [STDOUT]     where
22:25:22,332 INFO  [STDOUT]         user0_.username=?
22:25:22,513 ERROR [org.jboss.aspects.tx.TxPolicy] javax.ejb.EJBTransactionRolledbackException
22:25:22,534 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] javax.ejb.EJBTransactionRolledbackException: javax.faces.el.EvaluationException: javax.ejb.EJBTransactionRolledbackException
   at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) [:2.0.2-FCS]
   at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) [:2.0.2-FCS]
   at javax.faces.component.UICommand.broadcast(UICommand.java:315) [:2.0.2-FCS]
   at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:329) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.broadcastEventsForPhase(AjaxViewRoot.java:304) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:261) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:474) [:3.3.3.CR1]
   at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82) [:2.0.2-FCS]
   at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [:2.0.2-FCS]
   at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [:2.0.2-FCS]
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312) [:2.0.2-FCS]
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:336) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.20100429-M3]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) [:2.2.1.CR1]
   at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) [:3.3.3.CR1]
   at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) [:2.2.1.CR1]
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:293) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183) [:6.0.0.20100429-M3]
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.20100429-M3]
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.20100429-M3]
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [:6.0.0.20100429-M3]
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:872) [:6.0.0.20100429-M3]
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [:6.0.0.20100429-M3]
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.20100429-M3]
   at java.lang.Thread.run(Thread.java:636) [:1.6.0_18]
Caused by: javax.ejb.EJBTransactionRolledbackException
   at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:115) [:1.0.2]
   at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130) [:1.0.0.GA]
   at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:194) [:1.0.0.GA]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) [:1.0.0.GA]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.2]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.core.context.CurrentInvocationContextInterceptor.invoke(CurrentInvocationContextInterceptor.java:47) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67) [:1.0.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptor.EJB3TCCLInterceptor.invoke(EJB3TCCLInterceptor.java:86) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:180) [:1.3.1]
   at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:237) [:1.3.1]
   at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:188) [:1.0.6]
   at $Proxy201.register(Unknown Source)   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [:2.2.1.CR1]
   at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [:2.2.1.CR1]
   at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:43) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [:2.2.1.CR1]
   at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) [:2.2.1.CR1]
   at org.javassist.tmp.java.lang.Object_$$_javassist_seam_2.register(Object_$$_javassist_seam_2.java)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335) [:1.0_02.CR5]
   at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:348) [:1.0_02.CR5]
   at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58) [:1.0_02.CR5]
   at org.jboss.el.parser.AstValue.invoke(AstValue.java:96) [:1.0_02.CR5]
   at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) [:1.0_02.CR5]
   at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68) [:1.1.15.B1]
   at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) [:2.0.2-FCS]
   ... 50 more
Caused by: java.lang.NullPointerException
   at com.meduza.action.RegistrationAction.register(RegistrationAction.java:51) [:]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:72) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:138) [:1.0.6]
   at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [:2.2.1.CR1]
   at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:29) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:30) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50) [:2.2.1.CR1]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70) [:1.0.6]
   at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:76) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:62) [:1.0.6]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72) [:1.0.6]
   at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_1497874461.invoke(InvocationContextInterceptor_z_fillMethod_1497874461.java)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88) [:1.0.6]
   at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_1497874461.invoke(InvocationContextInterceptor_z_setup_1497874461.java)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:60) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.2]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126) [:1.0.0.GA]
   ... 96 more

22:25:22,802 WARNING [javax.enterprise.resource.webcontainer.jsf.lifecycle] #{RegAction.register}: javax.ejb.EJBTransactionRolledbackException: javax.faces.FacesException: #{RegAction.register}: javax.ejb.EJBTransactionRolledbackException
   at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) [:2.0.2-FCS]
   at javax.faces.component.UICommand.broadcast(UICommand.java:315) [:2.0.2-FCS]
   at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:329) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.broadcastEventsForPhase(AjaxViewRoot.java:304) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:261) [:3.3.3.CR1]
   at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:474) [:3.3.3.CR1]
   at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82) [:2.0.2-FCS]
   at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [:2.0.2-FCS]
   at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [:2.0.2-FCS]
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312) [:2.0.2-FCS]
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:336) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.20100429-M3]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) [:2.2.1.CR1]
   at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) [:3.3.3.CR1]
   at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) [:3.3.3.CR1]
   at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [:2.2.1.CR1]
   at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) [:2.2.1.CR1]
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:293) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183) [:6.0.0.20100429-M3]
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.20100429-M3]
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.20100429-M3]
   at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.20100429-M3]
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.20100429-M3]
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [:6.0.0.20100429-M3]
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:872) [:6.0.0.20100429-M3]
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [:6.0.0.20100429-M3]
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.20100429-M3]
   at java.lang.Thread.run(Thread.java:636) [:1.6.0_18]
Caused by: javax.faces.el.EvaluationException: javax.ejb.EJBTransactionRolledbackException
   at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) [:2.0.2-FCS]
   at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) [:2.0.2-FCS]
   ... 49 more
Caused by: javax.ejb.EJBTransactionRolledbackException
   at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:115) [:1.0.2]
   at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130) [:1.0.0.GA]
   at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:194) [:1.0.0.GA]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) [:1.0.0.GA]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.2]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.core.context.CurrentInvocationContextInterceptor.invoke(CurrentInvocationContextInterceptor.java:47) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67) [:1.0.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptor.EJB3TCCLInterceptor.invoke(EJB3TCCLInterceptor.java:86) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:180) [:1.3.1]
   at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:237) [:1.3.1]
   at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:188) [:1.0.6]
   at $Proxy201.register(Unknown Source)   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [:2.2.1.CR1]
   at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [:2.2.1.CR1]
   at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:43) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [:2.2.1.CR1]
   at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) [:2.2.1.CR1]
   at org.javassist.tmp.java.lang.Object_$$_javassist_seam_2.register(Object_$$_javassist_seam_2.java)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335) [:1.0_02.CR5]
   at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:348) [:1.0_02.CR5]
   at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58) [:1.0_02.CR5]
   at org.jboss.el.parser.AstValue.invoke(AstValue.java:96) [:1.0_02.CR5]
   at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) [:1.0_02.CR5]
   at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68) [:1.1.15.B1]
   at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) [:2.0.2-FCS]
   ... 50 more
Caused by: java.lang.NullPointerException
   at com.meduza.action.RegistrationAction.register(RegistrationAction.java:51) [:]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:72) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:138) [:1.0.6]
   at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [:2.2.1.CR1]
   at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:29) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:30) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [:2.2.1.CR1]
   at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [:2.2.1.CR1]
   at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50) [:2.2.1.CR1]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70) [:1.0.6]
   at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:76) [:1.0.6]
   at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:62) [:1.0.6]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_18]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_18]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_18]
   at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_18]
   at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72) [:1.0.6]
   at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_1497874461.invoke(InvocationContextInterceptor_z_fillMethod_1497874461.java)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88) [:1.0.6]
   at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_1497874461.invoke(InvocationContextInterceptor_z_setup_1497874461.java)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:60) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.2]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81) [:1.3.1]
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.0.Final]
   at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126) [:1.0.0.GA]
   ... 96 more



Thank you for your help!
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sanne.grinovero
 Post subject: Re: Error Saving ManyToMany Relation into DB with Java Persisten
PostPosted: Mon May 31, 2010 3:05 am 
Hibernate Team
Hibernate Team

Joined: Fri Oct 05, 2007 4:47 pm
Posts: 2536
Location: Third rock from the Sun
Code:
Caused by: java.lang.NullPointerException
   at com.meduza.action.RegistrationAction.register(RegistrationAction.java:51) [:]

This is the error in your stacktrace; it's pointing to a nullpointer exception in your own code, I have no clue which line is that.
I'm suspecting the "role" and "user" variables, you don't appear to be injecting them nor assigning a value?

_________________
Sanne
http://in.relation.to/

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flylight
 Post subject: Re: Error Saving ManyToMany Relation into DB with Java Persisten
PostPosted: Mon May 31, 2010 10:38 am 
Newbie

Joined: Sun May 30, 2010 3:46 pm
Posts: 3
The value assigned to the user from a Web page, so I do not assigned value for user in code.
And the role I assigned in the text code as "User".
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sanne.grinovero
 Post subject: Re: Error Saving ManyToMany Relation into DB with Java Persisten
PostPosted: Mon May 31, 2010 11:03 am 
Hibernate Team
Hibernate Team

Joined: Fri Oct 05, 2007 4:47 pm
Posts: 2536
Location: Third rock from the Sun
Quote:
The value assigned to the user from a Web page, so I do not assigned value for user in code.
And the role I assigned in the text code as "User".

no you're not assigning this value from a web page, as injection is wrong.

you have an error at
Code:
RegistrationAction.java:51

I don't know your lines, so you should look there.

_________________
Sanne
http://in.relation.to/

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flylight
 Post subject: Re: Error Saving ManyToMany Relation into DB with Java Persisten
PostPosted: Tue Jun 01, 2010 6:23 am 
Newbie

Joined: Sun May 30, 2010 3:46 pm
Posts: 3
Thank you very much! Your reply helped me!
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