text: An empty method in an abstract class should be abstract instead, as developer may rely on this empty implementation rather than code the appropriate one.
  <pre>
  public abstract class ShouldBeAbstract
  {
    public Object couldBeAbstract()
    {
    // Should be abstract method ?
      return null;
    }
  
    public void couldBeAbstract()
    {
    }
  }
  </pre>
  