Unnecessary 'def'

Last modified: 03 December 2024

Reports unnecessary def modifiers when used with explicit type declaration.

Example:

def boolean foo() {} // modifier is unnecessary
def Object bar // modifier is unnecessary

// modifier is required and therefore not highlighted
def (int a, String 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.

GrUnnecessaryDefModifier
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 | Style

Inspection options

Here you can find the description of settings available for the Unnecessary 'def' inspection, and the reference of their default values.

Only report in explicitly typed declarations

Default: Selected

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Groovy, 243.23126