Clearly, some object used as an expression prefix on line 106 of ShowAdminPanel is null. Put a breakpoint there and see what it is.
-Mike On 4/10/06, Andreas Bulling <[EMAIL PROTECTED]> wrote: > On 10. Apr 2006 - 10:15:16, Mike Snare wrote: > | Whenever you are asking for help with an exception, it helps to > | automatically post the exception with stack trace (there are often > | more than one, post all of them). > | > | All you have said is that you are getting an > | ApplicationRuntimeException. Without more info, that's next to > | meaningless. > > Well, actually what I wanted to know as a first step from a person > who already has created a DirectLink in Java once is if I my > code is wrong or if I'm missing something for example... > > This doesn't seem to be enough so here is the stack trace: > > java.lang.NullPointerException > Stack Trace: > > * > de.plattform.components.ShowAdminPanel.renderComponent(ShowAdminPanel.java:106) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * > org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:434) > * > org.apache.tapestry.components.RenderBody.renderComponent(RenderBody.java:44) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * > org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:434) > * org.apache.tapestry.html.Body.renderComponent(Body.java:129) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * > org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:434) > * org.apache.tapestry.html.Shell.renderComponent(Shell.java:115) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:92) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:92) > * org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617) > * org.apache.tapestry.AbstractPage.renderPage(AbstractPage.java:275) > * org.apache.tapestry.engine.RequestCycle.renderPage(RequestCycle.java:366) > * > org.apache.tapestry.services.impl.ResponseRendererImpl.renderResponse(ResponseRendererImpl.java:71) > * > $ResponseRenderer_10a842c6ff8.renderResponse($ResponseRenderer_10a842c6ff8.java) > * org.apache.tapestry.engine.DirectService.service(DirectService.java:137) > * $IEngineService_10a842c7069.service($IEngineService_10a842c7069.java) > * > org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:66) > * > org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248) > * > org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:60) > * > $WebRequestServicer_10a842c7042.service($WebRequestServicer_10a842c7042.java) > * > org.apache.tapestry.services.impl.DisableCachingFilter.service(DisableCachingFilter.java:48) > * > $WebRequestServicerFilter_10a842c7044.service($WebRequestServicerFilter_10a842c7044.java) > * > $WebRequestServicer_10a842c7046.service($WebRequestServicer_10a842c7046.java) > * > de.plattform.services.DiscardSessionFilter.service(DiscardSessionFilter.java:31) > * > $WebRequestServicerFilter_10a842c7040.service($WebRequestServicerFilter_10a842c7040.java) > * > $WebRequestServicer_10a842c7046.service($WebRequestServicer_10a842c7046.java) > * > $WebRequestServicer_10a842c703c.service($WebRequestServicer_10a842c703c.java) > * > org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:56) > * > $ServletRequestServicer_10a842c7022.service($ServletRequestServicer_10a842c7022.java) > * > org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55) > * > $ServletRequestServicerFilter_10a842c701e.service($ServletRequestServicerFilter_10a842c701e.java) > * > $ServletRequestServicer_10a842c7024.service($ServletRequestServicer_10a842c7024.java) > * > org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52) > * > $ServletRequestServicerFilter_10a842c701c.service($ServletRequestServicerFilter_10a842c701c.java) > * > $ServletRequestServicer_10a842c7024.service($ServletRequestServicer_10a842c7024.java) > * > org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53) > * > $ServletRequestServicerFilter_10a842c7020.service($ServletRequestServicerFilter_10a842c7020.java) > * > $ServletRequestServicer_10a842c7024.service($ServletRequestServicer_10a842c7024.java) > * > $ServletRequestServicer_10a842c7016.service($ServletRequestServicer_10a842c7016.java) > * > org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:123) > * org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:79) > * 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(Thread.java:595) > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional 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