JSF 2.1 OutputLink causing Null Pointer Exception

[Srividhya Mohanasundaram, geändert vor 11 Jahren.]

Here is my portlet named program.xhtml:

<script type="text/javascript">
		   jQuery(document).ready(function() 
		  {

                                var clientId = '#{lookupBean.clientId}';
				var formID = clientId + '\\:associateMarketingProgramForm';
				var formIDToFind = '#' + formID;
				
				jQuery(formIDToFind+"\\:marketingProgramArticleId").change(function()
				{
					jQuery(formIDToFind+"\\:getMarketingProgramAssoc").click();
				}); 
                    });	
 </script>

<h:form id="associateMarketingProgramForm">
<table width="100%" border="1" bordercolor="#CCCCCC" rules="cols" cellspacing="0" cellpadding="0">
									<tbody><tr>
										<td style="background-color: #949494; border-bottom: 1px solid #CCCCCC; color: #FFFFFF; font-weight: bold; height: 22px;" colspan="2" align="left">
											&nbsp;&nbsp;&nbsp;#{msg.createMarketingProgramLbl}</td>
									</tr>
									<tr>
										<td>
											<div class="text-left">#{msg.createMarketingProgramLbl}</div></td>
										<td>
											<div class="text-left">
												<h:outputlink style="color:blue;" value="#{liferay.portalURL}#{lookupBean.portalContext}/group/test/create">
													<f:param name="p_p_id" value="15" />
													<f:param name="p_p_state" value="maximized" />
													<f:param name="p_p_mode" value="view" />
													<f:param name="p_p_col_id" value="column-1" />
													<f:param name="_15_struts_action" value="/journal/edit_article" />
													<f:param name="tag" value="marketing program,news,general,general group" />
													<f:param name="advancedSearch" value="true" />
													<f:param name="type" value="marketing-program" />
													<f:param name="custom" value="true" />
													<f:param name="_15_redirect" value="/aaa/group/test/marketing-programs" />		
					               		#{msg.createLbl}			
						            </h:outputlink>
												,

												<h:outputlink style="color:blue;" value="#{liferay.portalURL}#{lookupBean.portalContext}/group/test/edit">
													<f:param name="p_p_id" value="15" />
													<f:param name="custom" value="true" />
													<f:param name="tag" value="marketing program,news,general,general group" />
													<f:param name="advancedSearch" value="true" />
													<f:param name="type" value="marketing-program" />
													<f:param name="_15_redirect" value="/aaa/group/test/marketing-programs" />		
					               		#{msg.editLbl}			
						            </h:outputlink>
											</div></td>
									</tr>
<tr>
					<td>&nbsp;&nbsp;#{msg.programLbl}</td>
					<td><h:selectonemenu id="marketingProgramArticleId" value="#{manageMarketingProgramsBean.marketingProgramArticleId}">
							<f:selectitem itemLabel="Select Marketing Program" itemValue="" />
							<f:selectitems value="#{manageMarketingProgramsBean.marketingPrograms}" />
						</h:selectonemenu> <h:message for="marketingProgramArticleId" errorClass="error" id="mpError" /> &nbsp;&nbsp; <span id="getAssocButtonDiv" style="display: none"> <h:commandbutton id="getMarketingProgramAssoc" action="#{manageMarketingProgramsBean.populateMarketingProgramData}" value="Get Marketing Program Associations">
								<f:setpropertyactionlistener target="#{manageMarketingProgramsBean.resetProgram}" value="true" />
							</h:commandbutton>
					</span></td>
					<td>&nbsp;&nbsp;</td>
				</tr>
</tbody></table>
</h:form>

When a option is picked up from the drop down "marketingProgramArticleId", an onchange event is called which calls the managed bean method manageMarketingProgramsBean.populateMarketingProgramData which will populate some more form data in the same portlet and reloads the same portlet program.xhtml. When the portlet tries to reload as a result of selecting an option I am getting the following exception:

Error Rendering View[/WEB-INF/xhtml/program/marketing/programs.xhtml]
javax.el.ELException: /WEB-INF/xhtml/program/marketing/programs.xhtml value="#{liferay.portalURL}#{lookupBean.portalContext}/group/test/create":
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:169)
at com.sun.faces.renderkit.html_basic.OutputLinkRenderer.getValue(OutputLinkRenderer.java:182)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
at com.sun.faces.renderkit.html_basic.OutputLinkRenderer.renderAsActive(OutputLinkRenderer.java:191)
at com.sun.faces.renderkit.html_basic.OutputLinkRenderer.encodeBegin(OutputLinkRenderer.java:107)
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:820)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1777)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304)
at com.sun.faces.renderkit.html_basic.TableRenderer.renderRow(TableRenderer.java:384)
at com.sun.faces.renderkit.html_basic.TableRenderer.encodeChildren(TableRenderer.java:161)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:424)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at com.liferay.faces.bridge.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:91)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at com.liferay.faces.bridge.lifecycle.LifecycleWrapper.render(LifecycleWrapper.java:45)
at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:241)
at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:84)
at com.liferay.faces.bridge.BridgeImpl.doFacesRequest(BridgeImpl.java:82)
at javax.portlet.faces.GenericFacesPortlet.doBridgeDispatch(GenericFacesPortlet.java:672)
at javax.portlet.faces.GenericFacesPortlet.doRenderDispatchInternal(GenericFacesPortlet.java:638)
at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:274)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:328)
at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:245)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:93)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:524)
at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:444)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:639)
at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:726)
at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:426)
at jsp_servlet._html._portal.__render_portlet._jspService(__render_portlet.java:1447)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:524)
at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:444)
at com.liferay.portal.util.PortalImpl.renderPortlet(PortalImpl.java:4276)
at com.liferay.portal.util.PortalUtil.renderPortlet(PortalUtil.java:1324)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processPortlet(RuntimePortletUtil.java:160)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processPortlet(RuntimePortletUtil.java:94)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processTemplate(RuntimePortletUtil.java:256)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processTemplate(RuntimePortletUtil.java:181)
at jsp_servlet._html._portal._layout._view.__portlet._jspService(__portlet.java:789)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:524)
at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:444)
at com.liferay.portal.action.LayoutAction.includeLayoutContent(LayoutAction.java:409)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:677)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:241)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:170)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:516)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:493)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:199)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:524)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:253)
at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:301)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:199)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:229)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.etag.ETagFilter.processFilter(ETagFilter.java:55)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:208)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:184)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
at com.verisign.vcc.common.filters.BusinessAnalyticsFilter.doFilter(BusinessAnalyticsFilter.java:68)
at sun.reflect.GeneratedMethodAccessor580.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:54)
at $Proxy774.doFilter(Unknown Source)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.verisign.vcc.servlet.filter.InternalPortletsSecurityFilter.doFilter(InternalPortletsSecurityFilter.java:57)
at sun.reflect.GeneratedMethodAccessor580.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:54)
at $Proxy774.doFilter(Unknown Source)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.lang.NullPointerException
at com.liferay.faces.portal.bean.Liferay.getPortalURL(Liferay.java:153)
at sun.reflect.GeneratedMethodAccessor1512.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:261)
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:116)
at com.sun.el.parser.AstValue.getValue(AstValue.java:163)
at com.sun.el.parser.AstDeferredExpression.getValue(AstDeferredExpression.java:59)
at com.sun.el.parser.AstCompositeExpression.getValue(AstCompositeExpression.java:64)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)


But when the portlet is loaded for the first time, everything works fine. The issue is after the onChange event on the drop down which the causes the portlet to be reloaded.

[Neil Griffin, geändert vor 11 Jahren.]

I think it would be more modular if you were to use a more pure JSF way of accomplishing this, rather than mixing the JavaScript programming model and JSF programming model. Applications that are partly JavaScript and partly JSF can sometimes be difficult to maintain. That's one big reason why rich JSF component suites like ICEfaces, PrimeFaces, and RichFaces are so popular. They do a very good job of doing all the JavaScript magic for you, so that your code can mostly (if not entirely) use the JSF programming model.

I would recommend that you put a valueChangeListener on the h:selectOneMenu tag. You might also want to specify immediate="true". If you want it to have a rich UI, then you should be able to specify f:ajax as a child of the h:selectOneMenu tag.

[Srividhya Mohanasundaram, geändert vor 11 Jahren.]

Neil

This was working fine with JSF 1.2, Liferay 5.2.3. I am facing this issue after upgrading to JSF 2.1 and Liferay 6.0. And also our project doesnt use Primefaces or Icefaces.

With JSf 1.2 and Liferay 5.2.3 the code for outputLink looked like:
<h:outputLink style="color:blue;" value="#{lookupBean.portalContext}/group/test/create">
</h:outputLink>

With JSF 2.1 and Liferay 6.0 I had to append #{liferay.portalURL} to the URL. Which is causing the Null pointer exception.
<h:outputLink style="color:blue;" value="#{liferay.portalURL}#{lookupBean.portalContext}/group/test/create">
</h:outputLink>

Thanks

[Neil Griffin, geändert vor 11 Jahren.]

You can use plain JSF 2, you don't need ICEfaces or PrimeFaces.