Java Files set posix attribute

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.PosixFilePermission;

public class Main {

   public static void main(String[] args) {
      Path path = Paths.get("home/docs/users.txt");
      try {//from   w  w  w. j  ava2 s . co m
         Files.setAttribute(path, "posix:permission", PosixFilePermission.OTHERS_WRITE);
      } catch (IOException ex) {
         ex.printStackTrace();
      }

   }

}