Hi, I manually set the TldCache in my context and get rid of the NullPointerException. But now I'm getting following exception
org.apache.jasper.JasperException: The absolute uri: > http://tiles.apache.org/tags-tiles cannot be resolved in either web.xml > or the jar files deployed with this application > at > org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55) > at > org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:277) > at > org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:75) > at > org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:240) > at > org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:124) > at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:411) > at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:469) > at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1430) > at org.apache.jasper.compiler.Parser.parse(Parser.java:139) > at > org.apache.jasper.compiler.ParserController.doParse(ParserController.java:227) > at > org.apache.jasper.compiler.ParserController.parse(ParserController.java:100) > at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:356) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:336) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:323) > at > org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:570) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:356) > at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:175) > at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at > org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37) > at > org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at > org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:64) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:721) > at > org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466) > at > org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391) > at > org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318) > at > org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.forward(RequestDispatcherAdaptor.java:30) > at > org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.forward(ContextPathServletAdaptor.java:362) > at > org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:198) > at > org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:185) > at > org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:419) > at > org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:370) > at org.wso2.carbon.ui.action.ActionHelper.render(ActionHelper.java:52) > at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:101) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at > org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37) > at > org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128) > at > org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at > org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:64) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) > at > org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:99) > at > org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:49) > at > org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:62) > at > org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:159) > at > org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) > at > org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:57) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516) > at > org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086) > at > org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659) > at > org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223) > at > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558) > at > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > at java.lang.Thread.run(Thread.java:745) I'm having a custom JarScanner as well. Is this relate to the JarScanner? Can someone help me out? Thanks regards /Thusitha On Tue, Mar 17, 2015 at 7:11 PM, Thusitha Thilina Dayaratne < thusit...@wso2.com> wrote: > 2015-03-17 15:16 GMT+02:00 Thusitha Thilina Dayaratne <thusit...@wso2.com > >: > > > > Hi > > > > > > Hi Violeta > > > > > > Hi, > > > > > > 2015-03-16 15:07 GMT+02:00 Thusitha Thilina Dayaratne < > thusit...@wso2.com > > >: > > > > > > > > >>> ERROR {org.apache.catalina.core.ApplicationDispatcher} - > > > > >>> Servlet.service() for servlet bridgeservlet threw exception > > > > >>> java.lang.NullPointerException > > > > >>> at > > > > >>> > > > > > > > > > > > > > > > > org.apache.jasper.JspCompilationContext.getTldResourcePath(JspCompilationContext.java:536) > > > > >>> at > > > > > > > org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:410) > > > > >>> at > org.apache.jasper.compiler.Parser.parseDirective(Parser.java:469) > > > > >>> at > org.apache.jasper.compiler.Parser.parseElements(Parser.java:1430) > > > > >>> at org.apache.jasper.compiler.Parser.parse(Parser.java:139) > > > > > > > > > > <snip/> > > > > > > > > > >>>> I can't figure out the reason to get this NullPointerException. > > > > >>>> Can someone help me out? > > > > > > > > > >>> If we knew which version of Tomcat 8 you were using, someone > could > > > look > > > > >>> at the relevant source code to try to figure out what was going > on. > > > > > I'm using tomcat version *8.0.20* > > > > > > > > >>Browse to the sourcecode of v8.0.20 of tomcat here: > > > > > > > > >> public TldResourcePath getTldResourcePath(String uri) { > > > > >> return getOptions().getTldCache().getTldResourcePath(uri); > > > > >> } > > > > Thanks for the quick response > > > > > > > > >> Obviously either getOptions() or getTldCache() is returning null. > > > > > > > > I debug the code as you suggest and found that getTldCache() is null. > > > > In the code As I understand there are 2 point which set the > *tldCache* > > > > variable > > > > one is the setTldCache() method and other is > > > > public static TldCache getInstance(ServletContext servletContext) { > > > > > > > > if (servletContext == null) { > > > > throw new IllegalArgumentException(Localizer.getMessage( > > > > > > > "org.apache.jasper.compiler.TldCache.servletContextNull")); > > > > } > > > > return (TldCache) > > > > servletContext.getAttribute(SERVLET_CONTEXT_ATTRIBUTE_NAME); > > > > } > > > > > > > > > > > > >>If you can attach a debugger try to see whether the code below is > > invoked: > > > > > > >>org.apache.jasper.servlet.JasperInitializer.onStartup(Set<Class<?>>, > > > >>ServletContext) { > > > >>..... > > > >> context.setAttribute(TldCache.SERVLET_CONTEXT_ATTRIBUTE_NAME, > > > >> new TldCache(context, > > scanner.getUriTldResourcePathMap(), > > > >> scanner.getTldResourcePathTaglibXmlMap())); > > > >> > > > >>} > > > I have checked that as well. But that method didn't get hot when I'm > > > debugging the source. > > > what could be the reason? > > > > >You wrote that you are running an embedded Tomcat. Is that true? > > >In Tomcat 8, Jasper initialization is implemented as a standard > > >ServletContainderInitializer (check Servlet specification). > > >So you should ensure > > >that org.apache.jasper.servlet.JasperInitializer.onStartup is invoked > > >during web app startup > > > > Could someone tell me how can I make sure that this method get call > during > > the web app startup? > > >You didn't tell us whether you are embedding Tomcat or not. > Thanks for response and I'm Sorry for missing the info in previous mail. > Yes I'm embedding tomcat version 8.0.20 > > >If you are embedding it which jar files from Tomcat distribution you are > >using etc. > I'm using following tomcat jars > > - tomcat-embed-core > - tomcat-embed-jasper > - tomcat-websocket-api > - tomcat-embed-websocket > - tomcat-jasper > > > >You can start debugging > >with org.apache.catalina.startup.ContextConfig.webConfig() > > >- processServletContainerInitializers(sContext); > > Thanks > Regards > Thusitha > > On Tue, Mar 17, 2015 at 6:56 PM, Violeta Georgieva <miles...@gmail.com> > wrote: > >> Hi, >> >> 2015-03-17 15:16 GMT+02:00 Thusitha Thilina Dayaratne <thusit...@wso2.com >> >: >> > >> > Hi >> > > >> > > Hi Violeta >> > > >> > > Hi, >> > > >> > > 2015-03-16 15:07 GMT+02:00 Thusitha Thilina Dayaratne < >> thusit...@wso2.com >> > >: >> > > > >> > > > >>> ERROR {org.apache.catalina.core.ApplicationDispatcher} - >> > > > >>> Servlet.service() for servlet bridgeservlet threw exception >> > > > >>> java.lang.NullPointerException >> > > > >>> at >> > > > >>> >> > > > > >> > > > >> > > >> > >> >> org.apache.jasper.JspCompilationContext.getTldResourcePath(JspCompilationContext.java:536) >> > > > >>> at >> > > > > >> > org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:410) >> > > > >>> at >> org.apache.jasper.compiler.Parser.parseDirective(Parser.java:469) >> > > > >>> at >> org.apache.jasper.compiler.Parser.parseElements(Parser.java:1430) >> > > > >>> at org.apache.jasper.compiler.Parser.parse(Parser.java:139) >> > > > > >> > > > > <snip/> >> > > > > >> > > > >>>> I can't figure out the reason to get this NullPointerException. >> > > > >>>> Can someone help me out? >> > > > > >> > > > >>> If we knew which version of Tomcat 8 you were using, someone >> could >> > > look >> > > > >>> at the relevant source code to try to figure out what was going >> on. >> > > > > I'm using tomcat version *8.0.20* >> > > > >> > > > >>Browse to the sourcecode of v8.0.20 of tomcat here: >> > > > >> > > > >> public TldResourcePath getTldResourcePath(String uri) { >> > > > >> return getOptions().getTldCache().getTldResourcePath(uri); >> > > > >> } >> > > > Thanks for the quick response >> > > > >> > > > >> Obviously either getOptions() or getTldCache() is returning null. >> > > > >> > > > I debug the code as you suggest and found that getTldCache() is >> null. >> > > > In the code As I understand there are 2 point which set the >> *tldCache* >> > > > variable >> > > > one is the setTldCache() method and other is >> > > > public static TldCache getInstance(ServletContext servletContext) { >> > > > >> > > > if (servletContext == null) { >> > > > throw new IllegalArgumentException(Localizer.getMessage( >> > > > >> > > "org.apache.jasper.compiler.TldCache.servletContextNull")); >> > > > } >> > > > return (TldCache) >> > > > servletContext.getAttribute(SERVLET_CONTEXT_ATTRIBUTE_NAME); >> > > > } >> > > >> > > >> > > >> > > >>If you can attach a debugger try to see whether the code below is >> > invoked: >> > > >> > > >>org.apache.jasper.servlet.JasperInitializer.onStartup(Set<Class<?>>, >> > > >>ServletContext) { >> > > >>..... >> > > >> >> context.setAttribute(TldCache.SERVLET_CONTEXT_ATTRIBUTE_NAME, >> > > >> new TldCache(context, >> > scanner.getUriTldResourcePathMap(), >> > > >> scanner.getTldResourcePathTaglibXmlMap())); >> > > >> >> > > >>} >> > > I have checked that as well. But that method didn't get hot when I'm >> > > debugging the source. >> > > what could be the reason? >> > >> > >You wrote that you are running an embedded Tomcat. Is that true? >> > >In Tomcat 8, Jasper initialization is implemented as a standard >> > >ServletContainderInitializer (check Servlet specification). >> > >So you should ensure >> > >that org.apache.jasper.servlet.JasperInitializer.onStartup is invoked >> > >during web app startup >> > >> > Could someone tell me how can I make sure that this method get call >> during >> > the web app startup? >> >> You didn't tell us whether you are embedding Tomcat or not. >> If you are embedding it which jar files from Tomcat distribution you are >> using etc. >> You can start debugging >> with org.apache.catalina.startup.ContextConfig.webConfig() >> >> - processServletContainerInitializers(sContext); >> >> Regards, >> Violeta >> >> > >> > Best Regards >> > Thusitha >> > >> > > > > -- > Thusitha Dayaratne > Software Engineer > WSO2 Inc. - lean . enterprise . middleware | wso2.com > > Mobile +94712756809 > Blog alokayasoya.blogspot.com > About http://about.me/thusithathilina > > -- Thusitha Dayaratne Software Engineer WSO2 Inc. - lean . enterprise . middleware | wso2.com Mobile +94712756809 Blog alokayasoya.blogspot.com About http://about.me/thusithathilina
