Condition of 'if' expression is constant

Reports if expressions that have true or false constant literal condition and can be simplified.

While occasionally intended, this construction is confusing and often the result of a typo or previous refactoring.

Example:

  fun example() {
      if (true) {
          throw IllegalStateException("Unexpected state")
      }
  }

The quick-fix removes the if condition:

  fun example() {
      throw IllegalStateException("Unexpected state")
  }

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.

ConstantConditionIf

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 | Redundant constructs

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Kotlin, 243.23126-IJ

Last modified: 03 December 2024