Hi Violeta,
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
Thanks for the quick response. Could you please tell me how can I do so?
Thanks
Best Regards
/Thusitha
On Mon, Mar 16, 2015 at 7:22 PM, Violeta Georgieva <miles...@gmail.com>
wrote:
> 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
> >
> >
>
--
Thusitha Dayaratne
Software Engineer
WSO2 Inc. - lean . enterprise . middleware | wso2.com
Mobile +94712756809
Blog alokayasoya.blogspot.com
About http://about.me/thusithathilina
