Java.lang NullPointerException jsf par JonathanKini - page 1

Bonsoir,

je suis debutant en jsf et depuis ce matin j'ai cette erreur quand je veux faire une mise a jour que je n'arrive pas a resoudre: java.lang NullPointerException

Voici mon code

@ManagedBean
@SessionScoped
public class EditerBean implements Serializable{
@EJB
	private VehiculeDao vehiculeDao;
private Vehicule vehiculeChoisi;
private Vehicule editVehicule;

public void modifierVehicule(){
		try {
			DateTime d= new DateTime(editDateVeh);
			editVehicule.setDateAcquisition(d);
			editVehicule.setFournisseur(fournisseurDao.trouver(fournisseurId));
			editVehicule.setEnergie(energieDao.trouver(energieId));
			editVehicule.setMarque(marqueDao.trouver(marqueId));
			editVehicule.setModele(modeleDao.trouver(modeleId));
			editVehicule.setEtat(etatVehiculeDao.trouver(etatId));
			editVehicule.setService(serviceDao.trouver(serviceId));
			vehiculeDao.updateVehicule(editVehicule);
			vehicules= vehiculeDao.listeVehicule();
			FacesMessage msg= new FacesMessage("Modification réussie!");
			FacesContext.getCurrentInstance().addMessage(null, msg);
			
		} catch (Exception e) {
			FacesMessage msg= new FacesMessage("Modification échouée!");
			FacesContext.getCurrentInstance().addMessage(null, msg);
			
		}
	}


public Vehicule getVehiculeChoisi(){
		return vehiculeChoisi;
	}
	public void setVehiculeChoisi(Vehicule veh){
		this.vehiculeChoisi=veh;
	}

public Vehicule geteditVehicule(){
		if(editVehicule==null){
			editVehicule= new Vehicule();
		}
		editVehicule= (Vehicule)vehiculeDao.rechercherVehicule(vehiculeChoisi.getImmatriculation());
		return editVehicule;
	}
	public void seteditVehicule(Vehicule veh){
		this.editVehicule=veh;
	}

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:p="http://primefaces.org/ui"
      xmlns:f="http://java.sun.com/jsf/core">
<h:head>
  <title><ui:insert name="title">Default title</ui:insert></title>
  <h:outputStylesheet library="default" name="css/style.css"/>
  
  <style type="text/css">
            .ui-widget {
                font-size: 90%;
            }
          
			</style>
</h:head>

<h:body>

<p:layout fullPage="true">
<p:layoutUnit  position="north" size="100" styleClass="zz"> 
                <!-- <h:graphicImage url="/tema/imagens/topo.jpg" />-->  
 	<!--  <p:menubar styleClass="t1" style="height: 28px;">
 	<p:menuitem>
 	<div style="font-size: 25px;width: 500px;">AGESPAAS</div>
 	</p:menuitem>
    </p:menubar>-->
    <div style="font-size: 40px;width: 1270px; text-align: center;font-variant: small-caps;">AGESPAAS</div>
    <ui:include src="/inc/menu.xhtml"/>
</p:layoutUnit>


<div id="menu_gauche" class="ui-layout-unit-titlebar">
<p:layoutUnit position="west" header="ACCES RAPIDE" size="220" style="text-align: center;color: orange; background-color: #fffafa ;">
    <ui:include src="/inc/menu_gauche_vehicule.xhtml"/>
</p:layoutUnit>
</div>



<p:layoutUnit id="centerLayout" position="center" >
		 <h:form id="form" >
		<p:growl id="growl" sticky="false" autoUpdate="true" showDetail="false" life="3000"/>
		<p:panel header="VEHICULES" style="text-align: center; background-color: #FEF3FF;">
		<p:dataTable id="datatable" var="vehicule" emptyMessage="Aucun résultat" value="#{vehiculeBean.vehicules}"  rows="10" paginator="true" 
                         paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
                         rowsPerPageTemplate="5,10,15" rowKey="#{vehicule.immatriculation}" selection="#{vehiculeBean.vehiculeChoisi}" selectionMode="single">
			<p:column headerText="Immatriculation" filterBy="#{vehicule.immatriculation}" filterMatchMode="exact" >
				<h:outputText value="#{vehicule.immatriculation}"/>
			</p:column>
			<p:column headerText="Nombre de place">
				<h:outputText value="#{vehicule.nbrePlace}"/>
			</p:column>
			<p:column headerText="Puissance">
				<h:outputText value="#{vehicule.puissance}"/>
			</p:column>
			<p:column headerText="coût d'acquisition">
				<h:outputText value="#{vehicule.coutAcquisition}"/>
			</p:column>
			<p:column headerText="date d'acquisition">
				<h:outputText value="#{vehicule.dateAcquisition.toDate()}">
				<f:convertDateTime pattern="dd/MM/yyyy" />
				</h:outputText>
			</p:column>
			<p:column headerText="Service Utilisateur">
				<h:outputText value="#{vehicule.service.description}"/>
			</p:column>
			<p:column headerText="Etat du véhicule">
				<h:outputText value="#{vehicule.etat.description}"/>
			</p:column>
			<f:facet name="footer">
			<!-- Pour la redirection outcome="ajouter" -->
			<p:commandButton value = "Ajouter"  onclick="PF('ajoutVar').show();" icon="ui-icon-plus"/>	
			<p:commandButton value="Détails"  actionListener="#{vehiculeBean.detailForm}" icon="ui-icon-plus" />
			<p:commandButton value = "Modifier"  onclick="PF('editVar').show()" icon="ui-icon-plus" />
			<p:commandButton value="Supprimer" action="#{vehiculeBean.supprimer}" update=":form:growl  :form:datatable"  icon="ui-icon-trash" />
		 </f:facet>
		</p:dataTable>
		</p:panel>
		</h:form>
</p:layoutUnit>

<p:layoutUnit position="south" size="70">
  <ui:insert name="pied">
  </ui:insert>
</p:layoutUnit>
<p:dialog header="AJOUTER VEHICULE" widgetVar="ajoutVar" modal="true">
			<ui:include src="ajoutVehicule.xhtml"/>
</p:dialog>
<p:dialog header="MODIFIER VEHICULE" widgetVar="editVar" modal="true">
			<ui:include src="editVehicule.xhtml"/>
</p:dialog>
</p:layout>

</h:body>
</html>

voici le code erreur

javax.el.ELException: /editVehicule.xhtml @35,117 value="#{editerBean.editVehicule.immatriculation}": java.lang.NullPointerException
	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:114)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
	at javax.faces.component.UIOutput.getValue(UIOutput.java:174)
	at javax.faces.component.UIInput.getValue(UIInput.java:291)
	at org.primefaces.util.ComponentUtils.getValueToRender(ComponentUtils.java:77)
	at org.primefaces.component.inputtext.InputTextRenderer.encodeMarkup(InputTextRenderer.java:71)
	at org.primefaces.component.inputtext.InputTextRenderer.encodeEnd(InputTextRenderer.java:52)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
	at org.primefaces.component.panelgrid.PanelGridRenderer.encodeDynamicBody(PanelGridRenderer.java:127)
	at org.primefaces.component.panelgrid.PanelGridRenderer.encodeTableBody(PanelGridRenderer.java:98)
	at org.primefaces.component.panelgrid.PanelGridRenderer.encodeTableLayout(PanelGridRenderer.java:65)
	at org.primefaces.component.panelgrid.PanelGridRenderer.encodeEnd(PanelGridRenderer.java:37)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
	at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:83)
	at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:66)
	at org.primefaces.component.panel.PanelRenderer.encodeContent(PanelRenderer.java:206)
	at org.primefaces.component.panel.PanelRenderer.encodeMarkup(PanelRenderer.java:123)
	at org.primefaces.component.panel.PanelRenderer.encodeEnd(PanelRenderer.java:58)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
	at org.primefaces.component.wizard.WizardRenderer.encodeCurrentStep(WizardRenderer.java:173)
	at org.primefaces.component.wizard.WizardRenderer.encodeContent(WizardRenderer.java:202)
	at org.primefaces.component.wizard.WizardRenderer.encodeMarkup(WizardRenderer.java:158)
	at org.primefaces.component.wizard.WizardRenderer.encodeEnd(WizardRenderer.java:62)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
	at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:894)
	at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:79)
	at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:66)
	at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:81)
	at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:66)
	at org.primefaces.component.dialog.DialogRenderer.encodeContent(DialogRenderer.java:180)
	at org.primefaces.component.dialog.DialogRenderer.encodeMarkup(DialogRenderer.java:109)
	at org.primefaces.component.dialog.DialogRenderer.encodeEnd(DialogRenderer.java:47)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:443)
	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
	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:219)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
	at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
	at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
	at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
	at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
	at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
	at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
	at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
	at java.lang.Thread.run(Thread.java:722)
Caused by: javax.el.ELException: java.lang.NullPointerException
	at javax.el.BeanELResolver.getValue(BeanELResolver.java:368)
	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
	at com.sun.el.parser.AstValue.getValue(AstValue.java:140)
	at com.sun.el.parser.AstValue.getValue(AstValue.java:204)
	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
	at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
	... 77 more
Caused by: java.lang.NullPointerException
	at parc_auto.bean.EditerBean.geteditVehicule(EditerBean.java:291)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at javax.el.BeanELResolver.getValue(BeanELResolver.java:363)
	... 84 more

svp aidez pour resoudre ce probleme. Merci!!!

-
Edité par JonathanKini 7 novembre 2015 à 19:02:21

JonathanKini

7 novembre 2015 à 18:54:17

Hadriel

7 novembre 2015 à 22:55:03

Salut JonathanKini,

L'erreur est indiquée à la première ligne de l'exception:

javax.el.ELException: /editVehicule.xhtml @35,117 value="#{editerBean.editVehicule.immatriculation}": java.lang.NullPointerException

La méthode getEditVehicule() renvoie null, étant donné que tu initialises le véhicule dans ton getter, je suppose que c'est la méthode rechercherVehicule() de la DAO qui ne renvoit aucun résultat.

Je ne vois cependant pas l'expression #{editerBean.editVehicule.immatriculation} dans la page que tu affiches, c'est peut être dans le composant que tu inclues à la ligne 36 menu_gauche_vehicule.xhtml

-
Edité par Hadriel 7 novembre 2015 à 22:55:39

Java.lang NullPointerException jsf

Java.lang NullPointerException jsf

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