Lambdas in Java Preview — part I

I'm a bit tired, but it seems to me like the fileFilter method would look nicer like this:

  public static File[] fileFilter(File dir, #boolean(File) matcher) {
      return dir.listFiles(new FileFilter() {
          public boolean accept(File file) {
              return matcher.(f);
          }
      });
  }

Or am I way off? I realize that it's moot, with the SAM types support that he's mentioning. Seems pretty nice.

On the whole it looks kind of verbose to me, and way uglier than in C#, but Java seems to me to at least be improving.