Java callbacks and 'this'

public class Entity {
    // ...
    public boolean move(int xDifference, int yDifference) {
        // ...
        this.game.animateEntity(this, this.x, this.y, newX, newY, new OnActionCompleted() {
            @Override
            public void completed(Action action) {
                // How do I access the Entity from here?
                System.out.println("Action completed!");
            }
        });
    }
}