Web.xml errors

Reports the following problems in descriptors that are used to deploy your Web Module to a server:

References to non-instantiable classes
References to classes that do not extend required class
References to classes with inappropriate scope
Empty tag and attribute values
Tag and attribute values that do not match required pattern (for example, Java Identifiers)
Tags that do not include required children tags or attributes
Tags that define objects with duplicate names

Example:

<web-app>
  <filter-mapping>
    <filter-name>CustomFilter</filter-name> // Error: either servlet-name or url-pattern child tag should be defined
  </filter-mapping>
  <servlet-mapping>
    <servlet-name>CustomServletName</servlet-name>
    <url-pattern>/ baseUrl</url-pattern> // Error: URI-pattern must not contain white spaces
  </servlet-mapping>
</web-app>

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

WebProperties

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Java EE

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Jakarta EE: Web/Servlets, 243.23126

Last modified: 03 December 2024