Java AsyncPrinter

import java.util.*;

public class AsyncPrinter extends Thread
{
    private Queue<String> queue;

    public AsyncPrinter()
    {
        this.queue=new LinkedList<>();
        this.setDaemon(true);
        this.start();
    }

    public void run()
    {
        String name;
        while(true)
        {
            while((name=this.queue.poll())!=null)
            {
                System.out.print("Hello, ");
                System.out.println(name);
            }
            try
            {
                this.wait();
            }
            catch(Exception ex)
            {
            }
        }
    }

    public boolean add(String name)
    {
        boolean ret=queue.offer(name);
        try
        {
            this.notifyAll();
        }
        catch(IllegalMonitorStateException ex)
        {
        }
        return ret;
    }

    public static void main(String... args)
    {
        AsyncPrinter printer=new AsyncPrinter();
        printer.add("test");
    }
}