Hello everybody... I'm stuck for a couple of days with an error that makes me becoming crazy !!! I have an .xhtml page (i work with facelets) which code is : | <h:dataTable id="lines" value="#{lines}" var="line" rendered="#{lines.size>0}"> | <h:column> | <f:facet name="header">#{messages['Line']}</f:facet> | | <s:link action="#{LineManager.selectLine(line.lineId)}" value="#{line.lineId}" propagation="join"/> | </h:column> | <h:column> | <f:facet name="header">#{messages['Product']}</f:facet> | #{line.productId.prodName} | </h:column> | </h:dataTable> | My LineManager is coded as below: | @Stateful | @Name("LineManager") | @Scope(SESSION) | public class LineManager implements LineManagerLocal, Serializable { | | @In | private EntityManager em; | | @DataModel("lines") | List<OrderLine> lines; | @DataModelSelection("lines") | private OrderLine currentOrderLine; | | | @Out | private Order myOrder; | | @Factory(value="lines",scope=SESSION) | public List<OrderLine> findlines(){ | | return myOrder.getOrderLines(); | | } | | @Factory(value="servs",scope=SESSION) | public List<Server> searchServers(){ | | return currentOrderLine.getServers(); | | } | | @Begin(join=true) | public void viewParameters(Order order){ | myOrder=em.merge(order); | System.out.println("on rentre dans le line manager"); | } | | public List<OrderLine> getLines(){ | return lines ; | } | | @Begin(nested=true) | public void selectLine(Long id){ | currentOrderLine=em.find(OrderLine.class,id); | } | | | public OrderLine getCurrentOrderLine() { | return currentOrderLine; | | } | | | public void setCurrentOrderLine(OrderLine currentOrderLine) { | this.currentOrderLine = currentOrderLine; | } | | | @Remove @Destroy | public void destroy(){ | } | | public Order getMyOrder() { | return myOrder; | } | | public void setMyOrder(Order myOrder) { | this.myOrder = myOrder; | } | } | When I click on an OrderLine on the page, i get an exception I show you the StackTrace : | | An exception was thrown during an ejb invocation on [LineManager] | javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean; nested exception is: java.lang.ClassCastException: org.hibernate.collection.PersistentBag | java.lang.ClassCastException: org.hibernate.collection.PersistentBag | at org.jboss.seam.databinding.DataModelBinder.getSelection(DataModelBinder.java:19) | at org.jboss.seam.Component.injectDataModelSelection(Component.java:1274) | at org.jboss.seam.Component.injectDataModelSelections(Component.java:1254) | at org.jboss.seam.Component.inject(Component.java:1196) | at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.interceptors.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:54) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103) | at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:53) | 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 com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:560) | at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:470) | at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:192) | at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3922) | at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:184) | at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:70) | at $Proxy656.selectLine(Unknown Source) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:20) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57) | at org.jboss.seam.interceptors.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:40) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.interceptors.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:31) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50) | at org.javassist.tmp.java.lang.Object_$$_javassist_41.selectLine(Object_$$_javassist_41.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:585) | at com.sun.el.parser.AstValue.invoke(AstValue.java:174) | at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:284) | at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77) | at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:58) | at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:75) | at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:148) | at org.jboss.seam.core.Pages.callAction(Pages.java:499) | at org.jboss.seam.core.Pages.enterPage(Pages.java:282) | at org.jboss.seam.jsf.AbstractSeamPhaseListener.enterPage(AbstractSeamPhaseListener.java:276) | at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:214) | at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:56) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:398) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127) | at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) | at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:258) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:189) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:81) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:193) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:558) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1067) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:137) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:558) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1067) | at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:255) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:618) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:549) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:790) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:326) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:248) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:199) | at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252) | at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:93) | javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean; nested exception is: java.lang.ClassCastException: org.hibernate.collection.PersistentBag | at com.sun.ejb.containers.BaseContainer.checkExceptionClientTx(BaseContainer.java:3672) | at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3520) | at com.sun.ejb.containers.StatefulSessionContainer.postInvokeTx(StatefulSessionContainer.java:1360) | at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1305) | at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1267) | at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:192) | at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:70) | at $Proxy656.selectLine(Unknown Source) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:20) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57) | at org.jboss.seam.interceptors.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:40) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.interceptors.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:31) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50) | at org.javassist.tmp.java.lang.Object_$$_javassist_41.selectLine(Object_$$_javassist_41.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:585) | at com.sun.el.parser.AstValue.invoke(AstValue.java:174) | at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:284) | at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77) | at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:58) | at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:75) | at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:148) | at org.jboss.seam.core.Pages.callAction(Pages.java:499) | at org.jboss.seam.core.Pages.enterPage(Pages.java:282) | at org.jboss.seam.jsf.AbstractSeamPhaseListener.enterPage(AbstractSeamPhaseListener.java:276) | at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:214) | at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:56) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:398) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127) | at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:217) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) | at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:258) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:189) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:81) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:193) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:558) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1067) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:137) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) | at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:564) | at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:558) | at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1067) | at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:255) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:618) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:549) | at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:790) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:326) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:248) | at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:199) | at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252) | at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:93) | I debugged this with NetBeans and went into injectDataModelSelection() which is in Component.java (package org.jboss.seam). It works just fine until it arrives on the line Object selectedIndex = wrapper.getSelection(dataModelAnn, dataModel); | Trying to step into this line, it gets directly into BijectionInterceptor.java and crashes with the exception above. It seems that it never enters DataModelBinder.java (i put a breakpoint on the first line of getSelection(), but it crashed before reaching this breakpoint) This is just to explain where it seems to crash... Just another thing, it behaves exactly the same even if currentOrderLine is not annotate with @DataModelSelection (you can see that i try to pass the llineId in the selectline() method). I hope somebody could help me a bit Thanks for having reached this point in your reading View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067912#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...