Repeated annotation which is not marked as '@Repeatable'

Reports the repeated use of a non-@Repeatable annotation on property accessors.

As a result of using non-@Repeatable annotation multiple times, both annotation usages will appear in the bytecode leading to an ambiguity in reflection calls.

Since Kotlin 1.4 it's mandatory to either mark annotation as @Repeatable or not repeat the annotation, otherwise it will lead to compilation error.

Example:

  annotation class Foo(val x: Int)

  @get:Foo(10)
  val a: String
      @Foo(20) get() = "foo" // annotation repeated twice but not marked as @Repeatable

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.

ProhibitRepeatedUseSiteTargetAnnotationsMigration

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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 | Kotlin | Migration

This inspection only reports if the Kotlin language level of the project or module is 1.4 or higher.

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Kotlin, 242.22892-IJ

Last modified: 11 September 2024