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  2. Java
  3. Verbose or redundant code constructs
  4. Comparator method can be simplified

Comparator method can be simplified

Last modified: 03 December 2024

Reports Comparator combinator constructs that can be simplified.

Example:

c.thenComparing(Comparator.comparing(function));

Comparator.comparing(Map.Entry::getKey);

Collections.max(list, Comparator.reverseOrder());

After the quick-fixes are applied:

c.thenComparing(function)

Map.Entry.comparingByKey()

Collections.min(list, Comparator.naturalOrder());

Locating this inspection

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Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

RedundantComparatorComparing
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 | Java | Verbose or redundant code constructs

New in 2018.1

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Java, 243.23126