Java Files write byte array to a file to append

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;

public class Main {

   public static void main(String[] args) {
      Path path = Paths.get("Main.java");

      try {/*from   w  ww.  j  a v a 2s  .c om*/
         byte[] contents = "demo2s.com".getBytes();

         Files.write(path, contents, StandardOpenOption.APPEND);
      } catch (IOException e) {
         e.printStackTrace();
      }

   }
}