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Unused assignment

Reports the cases where a variable is redundant as its value is never used after its assignment.

If the variable is unused, we recommend removing it to shorten the code and to avoid redundant allocations.

The following cases are reported:

  • the variable never gets read after assignment

  • the value is always overwritten with another assignment before the next variable read

  • the variable initializer is redundant (for one of the above two reasons)

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 | Groovy | Data flow

For more info see the same inspection in Java.


By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Groovy, 241.18072

Last modified: 18 June 2024