Inspectopedia 2024.3 Help

Extension class is a Kotlin object

Reports extensions which are instantiated by the IntelliJ Platform, but are declared as Kotlin objects.

Extensions lifecycle is managed by the IntelliJ Platform. Using Kotlin objects for extension registration may cause creation of unnecessary extension instances and make plugin unloading impossible.

Extension registration:

<annotator language="myLang" implementationClass="com.example.MyAnnotator"/>

Extension implementation:

// bad: object MyAnnotator : Annotator { ... } // good: class MyAnnotator : Annotator { ... }

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.

KotlinObjectExtensionRegistration
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 2023.1

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Plugin DevKit, 243.23126

Last modified: 03 December 2024