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Functional expression can be folded

Reports method references or lambda expressions that point to a method of their own functional interface type and hence can be replaced with their qualifiers removing unnecessary object allocation.

Example:

SwingUtilities.invokeLater(r::run); SwingUtilities.invokeAndWait(() -> r.run());

After the quick-fix is applied:

SwingUtilities.invokeLater(r); SwingUtilities.invokeAndWait(r);

This inspection reports only if the language level of the project or module is 8 or higher.

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3

Plugin:

Java, 233.SNAPSHOT

Last modified: 13 July 2023