Hi,
2015-03-16 15:33 GMT+02:00 Thusitha Thilina Dayaratne <thusit...@wso2.com>:
>
> 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.
Regards,
Violeta
> Thanks
> Regards
> Thusitha
>
>
