title: Compiler tells me he cannot resolve Singleton method
body: <p>I'm coding a app on Android Studio and the compiler tells me he cannot resolve my singleton method. I've tried using both pre-J2SE 6 singleton implementation and pos-J2SE 6 implementation using enum and in both cases the issue happens.</p>
  
  <p>Here is how I'm coding (this is a simple example, I'm doing the same thing in my 
  Singleton except he has more methods etc): </p>
  
  <pre><code>public class Singleton {
  
      private static final Singleton instance = new Singleton();
      private boolean aaa;
  
      private Singleton() {}
  
      public static Singleton getInstance() {
          return instance;
      }
  
      public void bbb(){}
  
  }
  </code></pre>
  
  <p>OR</p>
  
  <pre><code>public enum Singleton{
  
      INSTANCE {
  
          private boolean aaa;       
  
          public void bbb(){}
  
      }
  
  }
  </code></pre>
  
  <p>And in another class in the same package I'm coding</p>
  
  <pre><code>public class MapHandler implements OnMapClickListener
      Singleton abc = Singleton.getInstance();
  
      abc.bbb();
      // rest of code
  }
  </code></pre>
  
  <p>Compiler tells me cannot resolve symbol bbb()</p>
  
  <p>What I'm doing wrong? I'm asking this because this is a simple task and everyone else do this in the same way but I've searched on web about this specific case and I've found no answer for this =S</p>