Plugin.xml extension registration

Reports problems with extension registration in plugin.xml.

The following problems are reported:

Missing language declaration. If the extension does not target a specific language, use quick fix to create an explicit declaration for "any language".
Inspections: missing attributes
Services: redundant serviceInterface declaration
com.intellij.stubElementTypeHolder without externalIdPrefix, see Stub Indexes
com.intellij.statusBarWidgetFactory without id
com.intellij.applicationConfigurable|projectConfigurable without displayName/key

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.

PluginXmlExtensionRegistration

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 | Plugin DevKit | Plugin descriptor

New in 2022.3

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection PluginXmlExtensionRegistration

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025