Create custom annotation for Lombok
<p>I have used Lombok in my code to automatically generate getter and setter code. I want to add other personal annotations and use it.</p>
<p>For example, I want to add an <code>@Exist</code> method which verifies the existence of a key in a list:</p>
<pre><code>@Getter    @Setter
public class User {

    private String name;
    private List&lt;Integer&gt; keys;

    public boolean existKeys(Integer key) {
        boolean exist = keys.contains(key);
        return exist;
    }
}
</code></pre>
<p>After creating the annotation, I would do something like:</p>
<pre><code>@Getter    @Setter
public class User {

    private String name;
    @Exist
    private List&lt;Integer&gt; keys;
} 
</code></pre>