[TAPESTRY-1665] Null Pointer Exception when using Style Component together with updateComponents

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.2, 4.1.3
• Fix Version/s: 4.1.5
• Component/s: XHR/dhtml/Ajax
• Assignee: Andreas Andreou
• Reporter: Michael Gloegl
• Created: 23/Jul/07 16:35
• Updated: 22/Oct/07 17:55
• Resolved: 22/Oct/07 17:55

Description

Using a Style-Component on the same page as a DirectLink with an updateComponents-Attribute produces the following Exception:

java.lang.NullPointerException
Stack Trace:

• java.util.StringTokenizer.<init>(Unknown Source)
• java.util.StringTokenizer.<init>(Unknown Source)
• org.apache.tapestry.util.ContentType.parse(ContentType.java:171)
• org.apache.tapestry.util.ContentType.<init>(ContentType.java:58)
• org.apache.tapestry.html.Relation.renderStyleTag(Relation.java:97)
• org.apache.tapestry.html.Relation.renderComponent(Relation.java:53)
• org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:725)
• org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:625)
• org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:539)
• org.apache.tapestry.html.Shell.renderComponent(Shell.java:124)
• org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:725)
• org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:625)
• org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:107)
• org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:725)
• org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:625)
• org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:107)
• org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:725)
• org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:625)
• org.apache.tapestry.AbstractPage.renderPage(AbstractPage.java:249)
• org.apache.tapestry.engine.RequestCycle.renderPage(RequestCycle.java:397)
• org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.renderResponse(DojoAjaxResponseBuilder.java:238)
• org.apache.tapestry.services.impl.ResponseRendererImpl.renderResponse(ResponseRendererImpl.java:33)
• $ResponseRenderer_113f3dd3744.renderResponse($ResponseRenderer_113f3dd3744.java)
• org.apache.tapestry.engine.DirectService.service(DirectService.java:147)
• sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
• sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
• sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
• java.lang.reflect.Method.invoke(Unknown Source)
• de.alemo.security.SecurityInvocationHandler.invoke(SecurityInvocationHandler.java:59)
• $Proxy0.service(Unknown Source)
• $IEngineService_113f3dd37c6.service($IEngineService_113f3dd37c6.java)
• org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:72)
• org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:237)
• org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:54)
• $WebRequestServicer_113f3dd379a.service($WebRequestServicer_113f3dd379a.java)
• org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:54)
• $WebRequestServicerFilter_113f3dd379c.service($WebRequestServicerFilter_113f3dd379c.java)
• $WebRequestServicer_113f3dd379e.service($WebRequestServicer_113f3dd379e.java)
• $WebRequestServicer_113f3dd3796.service($WebRequestServicer_113f3dd3796.java)
• org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:61)
• $ServletRequestServicer_113f3dd377c.service($ServletRequestServicer_113f3dd377c.java)
• org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
• $ServletRequestServicerFilter_113f3dd3778.service($ServletRequestServicerFilter_113f3dd3778.java)
• $ServletRequestServicer_113f3dd377e.service($ServletRequestServicer_113f3dd377e.java)
• org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
• $ServletRequestServicerFilter_113f3dd3776.service($ServletRequestServicerFilter_113f3dd3776.java)
• $ServletRequestServicer_113f3dd377e.service($ServletRequestServicer_113f3dd377e.java)
• org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
• $ServletRequestServicerFilter_113f3dd377a.service($ServletRequestServicerFilter_113f3dd377a.java)
• $ServletRequestServicer_113f3dd377e.service($ServletRequestServicer_113f3dd377e.java)
• $ServletRequestServicer_113f3dd3770.service($ServletRequestServicer_113f3dd3770.java)
• org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:126)
• org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:103)
• javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
• javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
• org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
• org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
• org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
• org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
• org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
• org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
• org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
• org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
• org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
• org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
• org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
• org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
• org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
• java.lang.Thread.run(Unknown Source)

Removing the Style component fixes the problem.