The code:

    if (true)
    {
      System.out.println("1");
    }
    else // A comment
     if (true)
      {
        System.out.println("2");
      }

when formatted (Source->Format, Alt+Shift+F) will jump to 

    if (true)
    {
      System.out.println("1");
    }
    else // A comment
    {
      if (true)
      {
        System.out.println("2");
      }
    }

and back forever! The jump is determined by the presence of the comment after else ("// A comment").