Blank page when handling server errors?

Question

Java

There is REST in: Java, Maven, TomCat, MySql, Hibernate. Now I'm doing server error handling 404, 400, etc. In web.xml file added:

<error-page>
        <error-code>400</error-code>
        <location>/400error.html</location>
    </error-page>
    <error-page>
        <error-code>404</error-code>
        <location>/404error.html</location>
    </error-page>

But when these errors occur, a blank page appears in my browser. I work in NetBeans, and if I force open a file (/400error.html) like this file:///D:/path to the application /src/main/webapp/400error.html then it is displayed normally if I execute it via http ://localhost:8080/ project name/400error.html , I get a blank page. How to solve this problem

Answer 1

Try to specify the full path to the file on the server, for example: /WEB-INF/views/404.html (or wherever you have it there)
Also, look, you are not mapping the application to the root, but in /application_name you can also try /project name/ 404error.html

Answer 2

Do you have server logs? What the browser console shows (what code returns the request to the page). What version of servlets are you using (2.5 or 3.x)?