[JS2-1219] When there is any portlet fragment which refer to a non-registered portlet definition, the page is not rendered with "Content not available" message.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0, 2.2.1
• Fix Version/s: 2.2.2
• Assignee: Woonsan Ko
• Reporter: Woonsan Ko
• Created: 30/Sep/10 06:17
• Updated: 30/Aug/11 22:52
• Resolved: 30/Sep/10 06:37

Description

When there is any portlet fragment which refer to a non-registered portlet definition, the page is not rendered with "Content not available" message.
For example, when a psml page refers to the bookmark portlet, but apa-demo is not deployed, this error occurs.

The cause is because a portlet window is created without portlet definition when it cannot find a portlet definition from the portlet registry.
So, during rendering, we shouldn't assume that a portlet window will return a valid portlet definition every time.

By the way, the exception traces are logged like the following:

29.09.2010 22:29:34 ERROR [org.apache.jetspeed.request.JetspeedRequestContext.createPortletWindow():680] Failed to retrieve Portlet Definition for demo::BookmarkPortlet
29.09.2010 22:29:39 ERROR [org.apache.jetspeed.velocity.JetspeedVelocityViewServlet.error():715] Error processing vm template
org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getTitle' in class org.apache.jetspeed.velocity.JetspeedPowerToolImpl threw exception java.lang.NullPointerException at decorations/portlet/decorator.vm[line 38, column 20]
at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:337)
at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:284)
at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:262)
at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:342)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:260)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:366)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:366)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
at org.apache.velocity.Template.merge(Template.java:328)
at org.apache.velocity.Template.merge(Template.java:235)
at org.apache.portals.bridges.velocity.BridgesVelocityViewServlet.mergeTemplate(BridgesVelocityViewServlet.java:119)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(VelocityViewServlet.java:551)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doGet(VelocityViewServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1143)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1084)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:118)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:832)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:679)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:587)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:481)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java:639)
at org.apache.pluto.container.impl.PortletRequestDispatcherImpl.doDispatch(PortletRequestDispatcherImpl.java:174)
at org.apache.pluto.container.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:227)
at org.apache.portals.bridges.common.GenericServletPortlet.doView(GenericServletPortlet.java:364)
at org.apache.jetspeed.portlets.layout.LayoutPortlet.doView(LayoutPortlet.java:297)
at org.apache.jetspeed.portlets.layout.MultiColumnPortlet.doView(MultiColumnPortlet.java:190)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:348)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:253)
at org.apache.jetspeed.portlet.PortletObjectProxy.proxyRender(PortletObjectProxy.java:280)
at org.apache.jetspeed.portlet.PortletObjectProxy.invoke(PortletObjectProxy.java:172)
at $Proxy42.render(Unknown Source)
at org.apache.jetspeed.factory.JetspeedPortletInstance.render(JetspeedPortletInstance.java:117)
at org.apache.jetspeed.container.invoker.LocalPortletInvoker.invoke(LocalPortletInvoker.java:163)
at org.apache.jetspeed.container.invoker.JetspeedPortletInvokerService.render(JetspeedPortletInvokerService.java:127)
at org.apache.pluto.container.impl.PortletContainerImpl.doRender(PortletContainerImpl.java:157)
at org.apache.jetspeed.container.JetspeedPortletContainerWrapper.doRender(JetspeedPortletContainerWrapper.java:69)
at org.apache.jetspeed.aggregator.impl.RenderingJobImpl.execute(RenderingJobImpl.java:183)
at org.apache.jetspeed.aggregator.impl.PortletRendererImpl.renderNow(PortletRendererImpl.java:172)
at org.apache.jetspeed.aggregator.impl.PortletRendererImpl.renderNow(PortletRendererImpl.java:150)
at org.apache.jetspeed.aggregator.impl.PageAggregatorImpl.aggregateAndRender(PageAggregatorImpl.java:107)
at org.apache.jetspeed.aggregator.impl.PageAggregatorImpl.build(PageAggregatorImpl.java:77)
at org.apache.jetspeed.aggregator.AggregatorValve.invoke(AggregatorValve.java:46)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.aggregator.HeaderAggregatorValve.invoke(HeaderAggregatorValve.java:53)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.decoration.DecorationValve.invoke(DecorationValve.java:165)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.resource.ResourceValveImpl.invoke(ResourceValveImpl.java:84)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.pipeline.valve.impl.ActionValveImpl.invoke(ActionValveImpl.java:139)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.container.ContainerValve.invoke(ContainerValve.java:88)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.container.PageHistoryValve.invoke(PageHistoryValve.java:108)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.profiler.impl.RefreshUserHomepageValveImpl.invoke(RefreshUserHomepageValveImpl.java:114)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.pipeline.valve.impl.AbstractPageValveImpl.invoke(AbstractPageValveImpl.java:169)
at org.apache.jetspeed.pipeline.valve.impl.PageProfilerValveImpl.invoke(PageProfilerValveImpl.java:57)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.security.impl.LoginValidationValveImpl.invoke(LoginValidationValveImpl.java:158)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.security.impl.PasswordCredentialValveImpl.invoke(PasswordCredentialValveImpl.java:174)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.localization.impl.LocalizationValveImpl.invoke(LocalizationValveImpl.java:170)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.security.impl.AbstractSecurityValve$1.run(AbstractSecurityValve.java:138)
at java.security.AccessController.doPrivileged(AccessController.java:214)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:645)
at org.apache.jetspeed.security.JSSubject.doAsPrivileged(JSSubject.java:179)
at org.apache.jetspeed.security.impl.AbstractSecurityValve.invoke(AbstractSecurityValve.java:132)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.container.url.impl.PortalURLValveImpl.invoke(PortalURLValveImpl.java:88)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.capabilities.impl.CapabilityValveImpl.invoke(CapabilityValveImpl.java:127)
at org.apache.jetspeed.pipeline.JetspeedPipeline$Invocation.invokeNext(JetspeedPipeline.java:242)
at org.apache.jetspeed.pipeline.JetspeedPipeline.invoke(JetspeedPipeline.java:163)
at org.apache.jetspeed.engine.JetspeedEngine.service(JetspeedEngine.java:225)
at org.apache.jetspeed.engine.JetspeedServlet.invoke(JetspeedServlet.java:300)
at org.apache.jetspeed.engine.JetspeedServlet.service(JetspeedServlet.java:318)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1143)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1084)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:145)
at org.apache.jetspeed.login.filter.PortalFilter.doFilter(PortalFilter.java:167)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at org.apache.jetspeed.engine.servlet.XXSUrlAttackFilter.doFilter(XXSUrlAttackFilter.java:52)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:832)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:679)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:587)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:481)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3453)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:815)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1466)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:119)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:267)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
Caused by:
java.lang.NullPointerException
at org.apache.jetspeed.request.JetspeedRequestContext.getPreferedLanguage(JetspeedRequestContext.java:475)
at org.apache.jetspeed.velocity.JetspeedPowerToolImpl.getTitle(JetspeedPowerToolImpl.java:721)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:615)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:389)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:378)
at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)
... 126 more