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);
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.
FunctionalExpressionCanBeFolded- 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.
This inspection reports only if the language level of the project or module is 8 or higher.
Availability
- By default bundled with
- Can be installed with plugin
Java, 241.18072
Last modified: 18 June 2024