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Explicit argument can be lambda

Reports method calls that accept a non-trivial expression and can be replaced with an equivalent method call which accepts a lambda instead.

Converting an expression to a lambda ensures that the expression won't be evaluated if it's not used inside the method. For example, optional.orElse(createDefaultValue()) can be converted to optional.orElseGet(this::createDefaultValue).

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ExplicitArgumentCanBeLambda
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Settings or Preferences | Editor | Inspections | Java | Performance

This inspection depends on the Java feature 'Lambda expressions', which is available since Java 8.

New in 2018.1

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,

Can be installed with plugin:

Java, 242.22892

Last modified: 11 September 2024