Implicit 'Nothing?' type

Last modified: 03 December 2024

Reports variables and functions with the implicit Nothing? type.

Example:

fun foo() = null

The quick fix specifies the return type explicitly:

fun foo(): Nothing? = null

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.

ImplicitNullableNothingType
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 | Kotlin | Probable bugs

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Kotlin, 243.23126-IJ