Override Java DNS Name Server

CustomDns.sh

#!/usr/bin/bash
NAME=CustomDns
cat > $NAME.java <<EOF
import java.net.*;
import java.io.*;

class $NAME {
  public static void main(String[] args) throws Exception {
    System.setProperty("sun.net.spi.nameservice.nameservers", "127.0.0.1,114.114.114.114");
    //System.setProperty("sun.net.spi.nameservice.provider.1", "dns,sun");
    String hostname = "example.org";
    if(args.length > 0) {
      hostname = args[0];
    }
    InetAddress addr = InetAddress.getByName(hostname);
    System.out.println(addr.toString());
  }
}
EOF
javac $NAME.java
java $NAME $@
rm $NAME.java $NAME.class