Bom dia eu estou montando uma aplicação do tipo Quiz Perguntas/resposta em jsf:
Criei um CRUD para poder inserir, deletar e alterar as perguntas, e consigo fazer, mas há um problema que eu não consigo resolver.
Quando insiro uma pergunta e tento editar o resgistro daquela pegunta eu consigo, mas se fechar a aplicação e rodar novamente e tentar editar o elemento da lista que é gerada pelo banco da esse erro:
HTTP Status 500 -
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type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: javax.faces.model.NoRowAvailableException
javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)
root cause
javax.faces.el.EvaluationException: javax.faces.model.NoRowAvailableException
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
javax.faces.component.UICommand.broadcast(UICommand.java:315)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
root cause
javax.faces.model.NoRowAvailableException
javax.faces.model.ListDataModel.getRowData(ListDataModel.java:150)
br.gera.Mbean.PerguntaMBean.Alterar(PerguntaMBean.java:62)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.apache.el.parser.AstValue.invoke(AstValue.java:264)
org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
javax.faces.component.UICommand.broadcast(UICommand.java:315)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)