public void run()
	{
		try
		{
			while(true)
			{
				if(!sc.getUserMap().keySet().isEmpty())
				{
					byteArray = new byte[1024];
					byteArray = Protocol.GET_PING.getBytes("UTF-8");
					sendPacket = new DatagramPacket(byteArray, byteArray.length, InetAddress.getByName("234.5.6.7"), 9998);
					sc.getMulticastSocket().send(sendPacket);
					sendListToClients();
				}
				sleep(1000);
			}
		}catch(InterruptedException e)
		{
			System.out.println("InterruptedException in class Ping: Unable to interrupt sleeping thread");
			interrupt();
//			e.printStackTrace();
		} catch (UnsupportedEncodingException e)
		{
			System.out.println("UnsupportedEncodingException in class Ping: Unable to convert message to byteArray!");
		} 
		catch (IOException e)
		{
			System.out.println("IOException in class Ping: Unable to send packet");
		}
	}