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())); } Regards, Violeta > > from this 2 methods I couldn't find any point that setTldCache() is been > used. So I think getInstance() is the method that is been used. > > Should I manually set the value o tldCache? > > Thanks > Regards > /Thusitha