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SequencedCollection method can be used

Reports collection API method calls that can be simplified using SequencedCollection methods.

The following conversions are supported:

  • list.add(0, element)list.addFirst(element);

  • list.get(0)list.getFirst();

  • list.get(list.size() - 1)list.getLast();

  • list.remove(0)list.removeFirst();

  • list.remove(list.size() - 1)list.removeLast();

  • collection.iterator().next()collection.getFirst();

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.

SequencedCollectionMethodCanBeUsed
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 | Java language level migration aids | Java 21

This inspection depends on the Java feature 'Sequenced Collections', which is available since Java 21.

New in 2023.3

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