1. All Inspections
  2. Groovy
  3. Potentially confusing code constructs
  4. Implicit null argument

Implicit null argument

Last modified: 03 December 2024

Reports calls with no arguments to method that has exactly one parameter. This is equivalent to call with null, and that behavior is often confusing and unintended.

Example:

def foo(String s){}
foo() // this call is actually 'foo(null)' call

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.

GroovyImplicitNullArgumentCall
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 | Potentially confusing code constructs

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Groovy, 243.23126