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Constructor parameter is never used as a property

Reports primary constructor parameters that can have val or var removed.

Class properties declared in the constructor increase memory consumption. If the parameter value is only used in the constructor, you can omit them.

Note that the referenced object might be garbage-collected earlier.


class Task(val name: String) { init { print("Task created: $name") } }

The quick-fix removes the extra val or var keyword:

class Task(name: String) { init { print("Task created: $name") } }

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

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


By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Kotlin, 241.18072-IJ

Last modified: 18 June 2024