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Class extends annotation interface

Reports classes declared as an implementation or extension of an annotation interface.

While it is legal to extend an annotation interface, it is often done by accident, and the result can't be used as an annotation.

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.

ClassExplicitlyAnnotation
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 | Inheritance issues

This inspection depends on the Java feature 'Annotations', which is available since Java 5.

Inspection ID: ExtendsAnnotation

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 ClassExplicitlyAnnotation

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

Inspection Details

By default bundled with:

IntelliJ IDEA 2025.3, Qodana for JVM 2025.3,

Last modified: 03 December 2025