Discussion :

[safine]

Bonjour,

J'ai un "selectmanyCheckBox" contenant quatorze choix et je veux ajouter un selectOneradio pour faire (cochet tout et décocher tout), une erreur s'affiche au niveau bean. Voici le code:
fichier.xhtml

Code :

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<p:selectManyCheckbox id="grid"
							value="#{monbean.selectedDonnees}" layout="grid" columns="5"
							style="Font:10pt Cursive;">
							<f:selectItem **** />
							<f:selectItem  />
							<f:selectItem itemValue="" itemLabel="**" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="***"/>
							<f:selectItem itemValue=""itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="In" />
							<f:selectItem itemValue="" itemLabel="" />
							<f:selectItem itemValue="" itemLabel="" />
						</p:selectManyCheckbox>
 
						<p:selectOneRadio id="console" value="#{monbean.casecocher}">
						<f:selectItem itemLabel="Sélectionner Tout" itemValue="cocher" />
						<f:selectItem itemLabel="Déselectionner Tout" itemValue="decocher" />
						<p:ajax listener="#{monbean.hundleStChange}" event="click" />
						<p:ajax event="click" update="grid" />
					</p:selectOneRadio>

monbean

Code :

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public void hundleStChange(){
		if (casecocher.equals("cocher")) {
		selectedDonnees.add(0, "**")	;
		selectedDonnees.add(1, "**");
		selectedDonnees.add(2, "**");
......
		}
	}

l'erreur concerne les ligne de l'ajout des éléments dans la liste (selectedDonnees.add(0, "**")

Code :

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AVERTISSEMENT: /****.xhtml @108,72 listener="#{monbean.hundleStChange}": java.lang.NullPointerException
javax.el.ELException: /***.xhtml @108,72 listener="#{monbean.hundleStChange}": java.lang.NullPointerException
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:108)
	at org.primefaces.component.behavior.ajax.AjaxBehaviorListenerImpl.processAjaxBehavior(AjaxBehaviorListenerImpl.java:53)
	at javax.faces.event.AjaxBehaviorEvent.processListener(AjaxBehaviorEvent.java:109)
	at javax.faces.component.behavior.BehaviorBase.broadcast(BehaviorBase.java:98)
	at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:764)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at control.AuthFilter.doFilter(AuthFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at control.HydrauPageFilter.doFilter(HydrauPageFilter.java:40)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
	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)
Caused by: java.lang.NullPointerException
	atcontrol.BilanjourMBean.hundleStChange(BilanjourMBean.java:258)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:273)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
	... 36 more
 
javax.faces.FacesException: /****.xhtml @108,72 listener="#{bilanJourMB.hundleStChange}": java.lang.NullPointerException
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:85)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at tn.agriculture.barrage.control.AuthFilter.doFilter(AuthFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at tn.agriculture.barrage.control.HydrauPageFilter.doFilter(HydrauPageFilter.java:40)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
	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)
Caused by: javax.el.ELException: /***.xhtml @108,72 listener="#{monbean.hundleStChange}": java.lang.NullPointerException
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:108)
	at org.primefaces.component.behavior.ajax.AjaxBehaviorListenerImpl.processAjaxBehavior(AjaxBehaviorListenerImpl.java:53)
	at javax.faces.event.AjaxBehaviorEvent.processListener(AjaxBehaviorEvent.java:109)
	at javax.faces.component.behavior.BehaviorBase.broadcast(BehaviorBase.java:98)
	at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:764)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
	... 29 more
Caused by: java.lang.NullPointerException
	at control.monBean.hundleStChange(monbean.java:258)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:273)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
	... 36 more

Sachant que le même code a été réussi avec une commandButton, je n'ai pas arrivé à trouver la cause de l'erreur.

Merci d'avance pour votre aide.

[Logan Mauzaize]

Je dirais que la variable "selectedDonnees" est nulle.

[safine]

Merci beaucoup "Logan Mauzaize". J'ai ajouté ce ligne de code au niveau de la méthode "hundleStChange()"

Code :

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selectedDonnees = new ArrayList<String>();

. on aura donc le code suivant:

Code :

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public void hundleStChange(){
		selectedDonnees = new ArrayList<String>();
		if (casecocher.equals("cocher")) {
		selectedDonnees.add("***");
		selectedDonnees.add("***" );
		selectedDonnees.add("***" );
		}
	}

Merci encore une fois.