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Editorial Team
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Asked: 2026-06-14T19:17:43+00:00

<?xml version=1.0 encoding=UTF-8?> <web-app version=2.5 xmlns=http://java.sun.com/xml/ns/j2ee xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd> Referenced file contains errors (http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd).

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<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd">

Referenced file contains errors (http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd). For more information, right click on the message in the Problems View and select “Show Details…”

The errors below were detected when validating the file “web-app_2_5.xsd” via the file “web.xml”. In most cases these errors can be detected by validating “web-app_2_5.xsd” directly. However it is possible that errors will only occur when web-app_2_5.xsd is validated in the context of web.xml.

In details, I see a bunch of these:

s4s-elt-character: Non-whitespace characters are not allowed in schema elements other than xs:appinfo and xs:documentation. Saw ‘var _U=”undefined”;’

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1 Answer

  1. Editorial Team

    If you replace j2ee by javaee, it will work fine.

    EDIT :

    <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_2_5.xsd">

    Edit:

    To know anything further related to this error. Please follow the Link. Here you will find schemas for Java EE deployment descriptors (web.xml).

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