web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>MyUW Root</display-name>
  <error-page>
    <error-code>403</error-code>
    <location>/403.html</location>
  </error-page>
  
  <error-page>
    <error-code>500</error-code>
    <location>/500.html</location>
  </error-page>

  <error-page>
    <error-code>404</error-code>
    <location>/404.html</location>
  </error-page>
</web-app>