Referenced file contains errors (http://java.sun.com/xml/ns/javaee/web-app.xsd)

Question

I faced this error in Eclipse:

Referenced file contains errors (http://java.sun.com/xml/ns/javaee/web-app.xsd). For more information, right click on the message in the Problems View and select "Show Details..."

Can anyone help me? What is problem? Thanks in advance. My code is:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee;http://java.sun.com/xml/ns/javaee/web-app.xsd">

    <!-- The definition of the Root Spring Container shared by all Servlets             and Filters -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/root-context.xml</param-value>
    </context-param>

    <!-- Creates the Spring Container shared by all Servlets and Filters -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Processes application requests -->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/spring/dispatcherServlet/servlet-context.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

You should add the error messages to your question.

try-catch-finally
– try-catch-finally

2015-11-19 07:05:01 +00:00
Commented Nov 19, 2015 at 7:05 — try-catch-finally
– try-catch-finally, Commented Nov 19, 2015 at 7:05

chb · Accepted Answer · 2018-02-19 18:19:04Z

6

Try using this URL for the schema definition:

http://oracle.com/webfolder/technetwork/jsc/xml/ns/javaee/web-app_3_0.xsd

As mentioned above by @Renardo, the following URL...

http://java.sun.com/xml/ns/javaee;http://java.sun.com/xml/ns/javaee/web-app.xsd

...redirects to an HTML page that causes an error within Eclipse.

edited Feb 19, 2018 at 18:19

chb

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answered Feb 19, 2018 at 17:29

Rohit

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Comments

zb226 · Accepted Answer · 2019-04-30 07:12:42Z

4

I had the same problem although my schemaLocation points to web-app_3_0.xml. With 2_4 the problem did not appear. Now I have found that, used as an http address,

java.sun.com/xml/ns/j2ee/web-app_2_4.xsd

is redirected to

www.oracle.com/webfolder/technetwork/jsc/xml/ns/j2ee/web-app_2_4.xsd

which is a valid XSD file. However, the same URL with "3_0" instead of "2_4" is redirected to …/technetwork/java/index.html, which is an HTML file and contains exactly the texts Eclipse complains of.

I am at a loss as to whether

Oracle should provide an XSD under that URL, or
Eclipse should try to get that XSD from elsewhere, or
I should change my namespace declaration.

My Eclipse errors went away when I changed the namespace from "…/xml/ns/j2ee" to "…/xml/ns/javaee" and used a URL from Oracle's website that points to a correct XSD. Sorry I cannot post the URL, my low reputation does not allow it.

edited Apr 30, 2019 at 7:12

zb226

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answered Oct 19, 2016 at 14:27

Renardo

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1 Comment

Marco Schoolenberg Over a year ago

"my low reputation does not allow it." lol

Heena · Accepted Answer · 2015-11-19 06:34:14Z

1

<?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">

It looks like the problem was with the Java EE JARs that ship with MyEclipse… i would never encourage you to copy around plugins from one release to another (just for future reference, it could lead to squirrely problems). so try above one

answered Nov 19, 2015 at 6:34

Heena

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1 Comment

Maayan Hope Over a year ago

must add the version property

Samuel · Accepted Answer · 2020-08-19 20:53:21Z

1

Every time that I get this error I do this

Project -> Properties -> Project Facets In the right panel looking for Dynamic Web Module and get this version.

For example in my project I'm using Dynamic Web Module 3.1

With this I need to use http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd

<?xml version="1.0" encoding="UTF-8"?>
<weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd">
</weblogic-web-app>

answered Aug 19, 2020 at 20:53

Samuel

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