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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

Availability

By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Groovy, 241.18072

Last modified: 18 June 2024