Erro Target Unreachable

Programação Java
#1

Bom dia, quando eu tento salvar (persistir os dados) aparece esse erro. Alguém pode me ajudar.

javax.el.PropertyNotFoundException: /publicos/usuario.xhtml @24,58 value="#{usuarioBean.usuario.codigo}": Target Unreachable, ‘usuario’ returned null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1028)
at javax.faces.component.UIInput.validate(UIInput.java:958)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1209)
at javax.faces.component.UIInput.processValidators(UIInput.java:698)
at javax.faces.component.UIForm.processValidators(UIForm.java:244)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1085)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1085)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1165)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.meufinanceiro.web.filter.ConexaoHibernateFilter.doFilter(ConexaoHibernateFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

#2

[quote=wellington fernandes da s]Bom dia, quando eu tento salvar (persistir os dados) aparece esse erro. Alguém pode me ajudar.

javax.el.PropertyNotFoundException: /publicos/usuario.xhtml @24,58 value="#{usuarioBean.usuario.codigo}": Target Unreachable, ‘usuario’ returned null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:95)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1028)
at javax.faces.component.UIInput.validate(UIInput.java:958)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1209)
at javax.faces.component.UIInput.processValidators(UIInput.java:698)
at javax.faces.component.UIForm.processValidators(UIForm.java:244)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1085)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1085)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1165)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.meufinanceiro.web.filter.ConexaoHibernateFilter.doFilter(ConexaoHibernateFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
[/quote]

a propria mensagem ja diz… seu objeto chamado usuario está nulo e você deixou algum campo na tela para preencher o campo código do objeto usuário. O campo código é inacessivel neste objeto pois ele está nulo (instancia os objetos do seu managed bean que acessar deste jeito no construtor do managed bean que resolve ).

#3

Muito obrigado. Não tinha notado, pois havia esquecido de instanciar o objeto “usuario”.

#4

Valeu!!
Criei um construtor default instanciando meu usuário. Me salvaram outra vez :slight_smile:
//Constructors
public Usuariobean() {
usuario = new usuario();
}

#5