salut tous le monde,
J'ai encore un problème avec ma <rich:pickList>, j'ai vraiment besoin d'aide.
en exécutant l'application je reçois un message d'erreur ci-dessous. j'ai débogger l'application et le message s'affiche exactement aprés la méthode selectCompanynamesOption(), l'erreur vient bien de la pickList. j'arrive pas à résoudre le poblème.
le message d'erreur est le suivant:
le backing bean est lesuivant:
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101 java.lang.NullPointerException at com.sun.facelets.util.FastWriter.write(FastWriter.java:77) at com.sun.facelets.StateWriter.write(StateWriter.java:116) at com.sun.faces.renderkit.html_basic.HtmlResponseWriter.write(HtmlResponseWriter.java:495) at org.richfaces.renderkit.PickListRenderer.encodeItem(PickListRenderer.java:194) at org.richfaces.renderkit.PickListRenderer.encodeRows(PickListRenderer.java:152) at org.richfaces.renderkit.PickListRenderer.encodeSourceRows(PickListRenderer.java:209) at org.richfaces.renderkit.html.PickListRendererGen.doEncodeChildren(PickListRendererGen.jav a:344) at org.richfaces.renderkit.html.PickListRendererGen.doEncodeChildren(PickListRendererGen.jav a:258) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262) at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRendere r.java:79) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.ja va:271) at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:242) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) at javax.faces.render.Renderer.encodeChildren(Renderer.java:137) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:189) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.jav a:411) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:317) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:230) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:230) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:27 1) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProces sorTask.java:637) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorT ask.java:568) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTas k.java:813) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultRead Task.java:341) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214) at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265) at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106 )
ma page .xhtml est :
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37 @Stateful @Name("adminAction") @Scope(ScopeType.SESSION) public class AdminActionBean implements AdminActionLocal { @Out(required=false) private List<Customer> companyNames; @Out(required=false) private ArrayList<SelectItem> companyNamesOption; @In(required=false) @Out(required=false) private List<Long> customersChoice = new ArrayList<Long>(); public void selectCompanyNames(){ setCompanyNames((List<Customer>) getEm().createQuery("select c from Customer c") .getResultList()); } @Factory("companyNamesOption") public void selectCompanyNamesOption(){ selectCompanyNames(); for (int i=0;i <companyNames.size();i++){ log.info("customers size =#0",companyNames.size()); if(companyNamesOption== null) companyNamesOption = new ArrayList<SelectItem>(); SelectItem item = new SelectItem(companyNames.get(i).getCustomerId(), companyNames.get(i) .getCompanyName(), companyNames.get(i).getCompanyName() ); companyNamesOption.add(item); log.info("customers size2 =#0",customers.size()); } } .... // getter and setter ...
Est ce qu'il y a quelqu'un qui peut m'aider
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3 <rich:pickList id="customersChoice" value="#{adminAction.customersChoice}"> <f:selectItems value="#{companyNamesOption}" /> </rich:pickList>
grand merci
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