Invalid method reference used for 'Comparator'
Reports method references mapped to the Comparator interface that don't fulfill its contract.
Some method references, like Integer::max, can be mapped to the Comparator interface. However, using them as Comparator is meaningless and the result might be unpredictable.
Example:
ArrayList<Integer> ints = foo();
ints.sort(Math::min);
After the quick-fix is applied:
ArrayList<Integer> ints = foo();
ints.sort(Comparator.reverseOrder());
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.
InvalidComparatorMethodReference- 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.
Availability
- By default bundled with
- Can be installed with plugin
Java, 241.18072
Last modified: 18 June 2024