LazyConstant should be used only in final fields

Reports fields of type java.lang.LazyConstant that are not final.

Per JEP 526: Lazy Constants, lazy constants must be stored in a final field to enable constant-folding optimizations by the JVM.

Correct usage:

  private final LazyConstant<Logger> logger = LazyConstant.of(() -> Logger.create(OrderController.class));

Incorrect usage (will be reported):

private LazyConstant<String> x = LazyConstant.of(() -> "expensive string");

Locating this inspection

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IncorrectLazyConstantUsage

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This inspection depends on the Java feature 'Lazy constants', which is available since Java 26-preview.

Inspection ID: IncorrectLazyConstantUsage

New in 2026.1

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 IncorrectLazyConstantUsage

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

IntelliJ IDEA 2026.1

Inspection Details
By default bundled with:	IntelliJ IDEA 2026.1, Qodana for JVM 2026.1,

Last modified: 31 March 2026