Arrays comparison via '==' and '!='

Reports usages of == or != operator for arrays that should be replaced with contentEquals().

The == and !=operators compare array references instead of their content.

Examples:

  fun test() {
      val a = arrayOf(1, 2, 3)
      val b = arrayOf(1, 2, 3)
      println(a == b) // references comparison
  }

After the quick-fix is applied:

  fun test() {
      val a = arrayOf(1, 2, 3)
      val b = arrayOf(1, 2, 3)
      println(a.contentEquals(b))
  }

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.

ReplaceArrayEqualityOpWithArraysEquals

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 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Kotlin, 242.22892-IJ

Last modified: 11 September 2024