Inspectopedia 2025.2 Help

Non-extending permitted subclasses

Reports permitted classes that do not extend the sealed base class.

Groovy does not require that all permitted classes should be available in compile-time and compiled along with base class. Compiler will not warn the user on dealing with non-extending permitted subclass, but it contradicts the nature of sealed classes.

Example:

class A permits B {} // reports B class B {}

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.

GrPermitsClause
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 | Groovy | Probable bugs

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 GrPermitsClause

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 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025