code>final</code> allows the JVM to optimize access for improved performance.</p>

<p><b>Example:</b></p>
<pre><code>
  class Main {
    private volatile int id;
    private AtomicIntegerFieldUpdater&lt;Main&gt; idFieldUpdater = AtomicIntegerFieldUpdater.newUpdater(Main.class, "id");
  }
</code></pre>
<p>After the quick-fix is applied:</p>
<pre><code>
  class Main {
    private volatile int id;
    private static final AtomicIntegerFieldUpdater&lt;Main&gt; idFieldUpdater = AtomicIntegerFieldUpdater.newUpdat