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

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.

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.

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

Inspection ID: SequencedCollectionMethodCanBeUsed

New in 2023.3

Inspection options

Here you can find the description of settings available for the SequencedCollection method can be used inspection, and the reference of their default values.

Ignore named constants used as arguments

Option ID:

m_ignoreExpressionsContainingConstants

Default value:

Selected

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection SequencedCollectionMethodCanBeUsed

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.3

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.3, Qodana for JVM 2025.3,

Last modified: 03 December 2025