public class CrazyCodeCompletion {
   public void method(Object[] args) {
   }

   public void method(Double d) {
   }

   public void anotherMethod() {
      method(new D);
   }
}

Hitting code completion right after new D will bring Object[] as a suggestion. Replacing Object[] with any array, such as Integer[], will produce the same result. Replacing D with any other letter will keep the array class in the suggestions list. However, Double isn't shown for any other letter but D, so this is an inconsistency.