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2024.3

'AtomicFieldUpdater' field not declared 'static final'

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Last modified: 03 December 2024

Reports fields of types:

  • java.util.concurrent.atomic.AtomicLongFieldUpdater

  • java.util.concurrent.atomic.AtomicIntegerFieldUpdater

  • java.util.concurrent.atomic.AtomicReferenceFieldUpdater

that are not static final. Because only one atomic field updater is needed for updating a volatile field in all instances of a class, it can almost always be static.

Making the updater final allows the JVM to optimize access for improved performance.

Example:

After the quick-fix is applied: