Reports fields of types: 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:

  class Main {
    private volatile int id;
    private AtomicIntegerFieldUpdater<Main> idFieldUpdater = AtomicIntegerFieldUpdater.newUpdater(Main.class, "id");
  }

After the quick-fix is applied:

  class Main {
    private volatile int id;
    private static final AtomicIntegerFieldUpdater<Main> idFieldUpdater = AtomicIntegerFieldUpdater.newUpdater(Main.class, "id");
  }