Error page configuration in web.xml not working

Question

I have the following configuration in my web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">

    <display-name>tycoon-sa</display-name>

    <context-param>
        <param-name>br.com.caelum.vraptor.encoding</param-name>
        <param-value>UTF-8</param-value>
    </context-param>

    <error-page>
        <location>/</location>
    </error-page>

    <filter>
        <filter-name>vraptor</filter-name>
        <filter-class>br.com.caelum.vraptor.VRaptor</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>vraptor</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>FORWARD</dispatcher>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>ERROR</dispatcher>
    </filter-mapping>
</web-app>

My goal is to redirect the user to the main page in case of exceptions or error codes (404, 500, etc). But it's not working. I've tried to access an invalid URL and I was not redirected. The application throws a NullPointerException. Here's the stack trace:

SEVERE: Servlet.service() for servlet default threw exception  
java.lang.NullPointerException  
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:321)  
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)  
    at br.com.caelum.vraptor.resource.DefaultResourceNotFoundHandler.couldntFind(DefaultResourceNotFoundHandler.java:41)  
    at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:71)  
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)  
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)  
    at br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)  
    at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:91)  
    at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)  
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:88)  
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)  
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)  
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)  
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)  
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)  
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)  
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:456)  
    at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:327)  
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:193)  
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)  
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)  
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)  
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)  
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)  
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)  
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)  
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
    at java.lang.Thread.run(Unknown Source)  

Abr 02, 2013 11:04:32 AM org.apache.catalina.core.StandardHostValve custom  
SEVERE: Exception Processing ErrorPage[errorCode=0, location=/]  
java.lang.NullPointerException  
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:321)  
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)  
    at br.com.caelum.vraptor.resource.DefaultResourceNotFoundHandler.couldntFind(DefaultResourceNotFoundHandler.java:41)  
    at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:71)  
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)  
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)  
    at br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)  
    at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:91)  
    at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)  
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:88)  
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)  
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)  
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)  
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)  
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)  
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)  
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:456)  
    at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:327)  
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:193)  
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)  
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)  
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)  
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)  
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)  
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)  
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)  
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
    at java.lang.Thread.run(Unknown Source)

Any clues?

One more info: I need to call a servlet because my error page has a pre processment. — Guto Marrara Marzagao, Apr 01 '13 at 20:10

score 1 · Answer 1 · answered Apr 01 '13 at 06:49

1

this is the way to configure a default error page for all the errors

<error-page>
<location>/whateverpage.html</location>
</error-page>

Remember this will only work if you are using Servlet 3.0. if you are still using Servlet 2.5 then you will have to specify each and every error code.

<error-page>
<error-code>404</error-code>
<location>/notfound.html</location>
</error-page>
<error-page>
<error-code>403</error-code>
<location>/general-error.html</location>
</error-page>

answered Apr 01 '13 at 06:49

Shurmajee

1,027
3
12
35

So I can't define a route inside "location" tag to be treated by a Servlet? – Guto Marrara Marzagao Apr 01 '13 at 06:55
i think you should be able to call a servlet using location – Shurmajee Apr 01 '13 at 07:29
give your complete web.xml – Shurmajee Apr 02 '13 at 04:01
where is the servlet you want to redirect to? – Shurmajee Apr 02 '13 at 08:01
Oh, I'm sorry. I forgot to say that I'm using a framework that handles this. You just simply configure a method annotation and it makes the servlet mapping. The framework is VRaptor. It's pretty simple to use :) – Guto Marrara Marzagao Apr 02 '13 at 14:03
The browser shows a 404 report and the application throws a NullPointerException. I added the stack trace to the question. – Guto Marrara Marzagao Apr 02 '13 at 17:42

score 0 · Answer 2 · answered Apr 01 '13 at 06:27

0

error-page can not rediect invalid url .If you want to do that you can use apache server and write following

RewriteEngine on    
Redirect /--xyz-75/ http://www.domain.com.au/

answered Apr 01 '13 at 06:27

Biswajit

2,434
2
28
35

I'm sorry. I don't understand why it's an invalid url. – Guto Marrara Marzagao Apr 01 '13 at 06:50

score 0 · Answer 3 · answered Apr 01 '13 at 06:34

0

Specify the error code in your error page tag 404 /ErrorPage.jsp

answered Apr 01 '13 at 06:34

Vasu

149
7

I'm not using error code tag. You don't need this tag on Servlet 3.0 if you want to catch any error code: http://stackoverflow.com/questions/7066192/specify-the-default-error-page-in-web-xml-in-servlet – Guto Marrara Marzagao Apr 01 '13 at 06:47

Error page configuration in web.xml not working

3 Answers3