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JSF
error NullPointerException
wladimir bandeira
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Posts: 15
posted 8 years ago
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When you add this line of code in my xhtml page
When you add this line of code in my xhtml page
it generates this error
jun 04, 2015 10:59:42 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException GRAVE: Error Rendering View[/pedidos/PesquisaPedidos.xhtml] java.lang.NullPointerException at org.primefaces.renderkit.OutcomeTargetRenderer.getTargetURL(OutcomeTargetRenderer.java:95) at org.primefaces.component.button.ButtonRenderer.buildOnclick(ButtonRenderer.java:98) at org.primefaces.component.button.ButtonRenderer.encodeMarkup(ButtonRenderer.java:53) at org.primefaces.component.button.ButtonRenderer.encodeEnd(ButtonRenderer.java:32) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:881) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782) at org.primefaces.component.datatable.DataTableRenderer.encodeCell(DataTableRenderer.java:808) at org.primefaces.component.datatable.DataTableRenderer.encodeRow(DataTableRenderer.java:773) at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:651) at org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:234) at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:196) at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:82) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:881) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786) at javax.faces.render.Renderer.encodeChildren(Renderer.java:168) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:851) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779) at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:513) at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183) at javax.faces.component.UIForm.visitTree(UIForm.java:381) at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623) at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623) at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:378) at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:298) at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183) at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183) at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:973) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:413) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124) at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286) at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659) at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) 2015-06-04 10:59:42,128 ERROR [com.algaworks.pedidovenda.util.jsf.JsfExceptionHandler] Erro de sistema: null java.lang.NullPointerException at org.primefaces.renderkit.OutcomeTargetRenderer.getTargetURL(OutcomeTargetRenderer.java:95) at org.primefaces.component.button.ButtonRenderer.buildOnclick(ButtonRenderer.java:98) at org.primefaces.component.button.ButtonRenderer.encodeMarkup(ButtonRenderer.java:53) at org.primefaces.component.button.ButtonRenderer.encodeEnd(ButtonRenderer.java:32) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:881) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782) at org.primefaces.component.datatable.DataTableRenderer.encodeCell(DataTableRenderer.java:808) at org.primefaces.component.datatable.DataTableRenderer.encodeRow(DataTableRenderer.java:773) at org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:651) at org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:234) at org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:196) at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:82) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:881) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786) at javax.faces.render.Renderer.encodeChildren(Renderer.java:168) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:851) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779) at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:513) at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183) at javax.faces.component.UIForm.visitTree(UIForm.java:381) at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623) at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623) at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:378) at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:298) at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183) at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183) at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:973) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:413) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124) at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286) at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659) at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source)
Greg Charles
Sheriff
Posts: 3063
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posted 8 years ago
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I think you forgot to show the line of code you're adding. However, this error generally means that the outcome of an action cannot be resolved to a view in your application.
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