4 Replies Latest reply on Dec 20, 2010 9:36 AM by gazoo

Newbie's question -

gazoo Dec 17, 2010 9:19 AM

Hello,

I started with Seam not long ago and I hit one Exception I cannot manage. The situation looks like this:

When I'm persisting an entity, in the EntityHome class I want to add an information of the exact time when the entity is being stored and the user who is saving the record. For determining the user, I use the following method:

protected UserAccount getCurrentUser() {
          if (currentUser == null) {
               String username = Identity.instance()
                    .getCredentials()
                    .getUsername();
               String ejbql = "SELECT user FROM org.bhstech.foxNose.config.user.UserAccount user where user.username like :username";
               try {     
                    Query query = entityManager.createQuery(ejbql);
                    query.setParameter("username", username);
                    List gatheredUsers = query.getResultList();
                    currentUser = (UserAccount) gatheredUsers.get(0);
                    log.info("Loading current user: " + currentUser.getUsername());
               } catch (NullPointerException ex) {
                    log.warn("NPE while loading the user");
                    ex.printStackTrace();
                    return null;
               }
               
          }
          return currentUser;
     }

After this, if I want to store any entity with the EntityHome.persist() method, I get from Hibernate the NonUniqueObjectException.

In case I do not call the getCurrentUser() method everything runs fine. I tried to use the EntityQuery from Seam framework as well as Query from the JPA but with the same results.

Here comes the Stacktrace:

15:15:24,841 SEVERE [application] javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
javax.faces.el.EvaluationException: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     at javax.faces.component.UICommand.broadcast(UICommand.java:387)
     at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
     at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:296)
     at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)
     at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:466)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     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$FilterChainImpl.doFilter(SeamFilter.java:83)
     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
     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:45)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
     at org.jboss.seam.servlet.SeamFilter$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:235)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
     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:158)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
     at java.lang.Thread.run(Thread.java:619)
Caused by: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:614)
     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:226)
     at org.jboss.seam.persistence.EntityManagerProxy.persist(EntityManagerProxy.java:137)
     at org.jboss.seam.framework.EntityHome.persist(EntityHome.java:84)
     at org.bhstech.foxNose.templates.session.BasicHome.persist(BasicHome.java:93)
     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:597)
     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
     at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
     at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:65)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:97)
     at org.jboss.seam.util.Work.workInTransaction(Work.java:47)
     at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:91)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
     at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
     at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
     at org.bhstech.foxNose.config.session.DeviceHome_$$_javassist_seam_4.persist(DeviceHome_$$_javassist_seam_4.java)
     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:597)
     at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335)
     at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:348)
     at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
     at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
     at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
     at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
     at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
     ... 53 more
Caused by: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:191)
     at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:144)
     at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:49)
     at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)
     at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)
     at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)
     at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:645)
     at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:619)
     at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:623)
     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)
     ... 90 more
15:15:24,849 WARNING [lifecycle] #{deviceHome.persist}: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
javax.faces.FacesException: #{deviceHome.persist}: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
     at javax.faces.component.UICommand.broadcast(UICommand.java:387)
     at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
     at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:296)
     at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)
     at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:466)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     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$FilterChainImpl.doFilter(SeamFilter.java:83)
     at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
     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:45)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
     at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
     at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
     at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
     at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
     at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
     at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
     at org.jboss.seam.servlet.SeamFilter$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:235)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
     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:158)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
     at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.el.EvaluationException: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     ... 52 more
Caused by: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:614)
     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:226)
     at org.jboss.seam.persistence.EntityManagerProxy.persist(EntityManagerProxy.java:137)
     at org.jboss.seam.framework.EntityHome.persist(EntityHome.java:84)
     at org.bhstech.foxNose.templates.session.BasicHome.persist(BasicHome.java:93)
     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:597)
     at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
     at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
     at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:65)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:97)
     at org.jboss.seam.util.Work.workInTransaction(Work.java:47)
     at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:91)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
     at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
     at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
     at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
     at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
     at org.bhstech.foxNose.config.session.DeviceHome_$$_javassist_seam_4.persist(DeviceHome_$$_javassist_seam_4.java)
     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:597)
     at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335)
     at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:348)
     at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
     at org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
     at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
     at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
     at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
     ... 53 more
Caused by: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [org.bhstech.foxNose.config.entity.Device#1]
     at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:191)
     at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:144)
     at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:49)
     at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:154)
     at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:110)
     at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)
     at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:645)
     at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:619)
     at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:623)
     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:220)
     ... 90 more
15:15:24,885 SEVERE [lifecycle] JSF1054: (Phase ID: INVOKE_APPLICATION 5, View ID: /config/device.xhtml) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@7e693f]

I'm running jboss-seam-2.2.0.GA. If you'd like me to provide source, or any config I have, let me know and I'll do so.

Thank you, guys.
Bernard

1. Re: Newbie's question -

vata2999 Dec 17, 2010 1:12 PM (in response to gazoo)
I don't know what exactly your problem is but maybe this will be helpfull
try to use conversation before persisting your object

@Begin public void setCurrentUser(){ //set current user and time getInstance().setUserCurrentUser(getCurrentUser()); } @End public void persisted(){ //persist entity }
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2. Re: Newbie's question -

andrea1802 Dec 17, 2010 5:59 PM (in response to gazoo)

This exception will be thrown if an entity with the same id will be stored in database. EntityManager class provides two methods: persist for new entities and merge for edit entities. Maybe you want to persist an entity which is already stored in db. So you have to look, if the entity is already stored in db, than call method EntityHome.merge() otherwise call method EntityHome.persist().
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3. Re: Newbie's question -

vata2999 Dec 18, 2010 1:34 AM (in response to gazoo)

So you have to look, if the entity is already stored in db, than call method EntityHome.merge() otherwise call method EntityHome.persist()
however as i know if you wire an Entity in EntytHome, u don't need to merge it
@Bernard : has your userName column UniqueConstraint Annotation ?
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4. Re: Newbie's question -

gazoo Dec 20, 2010 9:36 AM (in response to gazoo)
Hello all, thanks for your suggestions. However none of those did help. I get this exception no matter whether I use persist() or merge().

@Omid: Yes, it does have UniqueConstraint annotation. It's the standard UserAccount class Seam-gen generates for authentication procedures.

I don't have any other data stored in the Entity table in the DB. I'm trying to store the first record, so this record should be unique :)

Interesting observation - If I call getCurrentUser() method for the first time, the following call of entityHome.persist() is accompanied by the exception. But if I call the method getCurrentUser for the second time and the whole query doesn't run because of the following condition:

if (currentUser == null) {

Then the entity is stored fine. So every succeeding call of the getCurrentUser and persist() methods runs fine after the currentUser variable is set. This leads me to thinking that I don't leave the entity manager in the correct state after calling my query.

What do you think? Thanks.

Bernard
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