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  3. Style issues
  4. Object literal can be converted to lambda

Object literal can be converted to lambda

Last modified: 03 December 2024

Reports anonymous object literals implementing a Java interface with a single abstract method that can be converted into a call with a lambda expression.

Example:

class SomeService {
  val threadPool = Executors.newCachedThreadPool()

  fun foo() {
    threadPool.submit(object : Runnable {
      override fun run() {
        println("hello")
      }
    })
  }
}

After the quick-fix is applied:

fun foo() {
  threadPool.submit { println("hello") }
}

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.

ObjectLiteralToLambda
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 | Style issues

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Kotlin, 243.23126-IJ