在eclipse中实现的秒表，秒表线程不调用sleep时有错误。

[后中争先]

try {
				Thread.sleep(1);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}

当不添加上述代码时，线程没有进入run函数中，也就是不会更新秒表的各个数据，但是调试过程中可以看到countState已经变化了。求大神解答，或者赐教怎么在eclipse中对线程进行调试的方法。

秒表实现如下：

//为什么不加睡眠的时候有错误呢？
//try {
//	Thread.sleep(100);
//} catch (InterruptedException e) {
//	e.printStackTrace();
//}
package time;
//计时的类，有开始计时，暂停计时，停止计时等功能
//停止计时之后，计时线程将消亡
public class Time implements Runnable{
	
	private int minute;//分钟数
	private int second;//秒数
	private long startMillis;//开始的豪秒数
	private long newMillis;//新的毫秒数
	private long totalMillis;//总的毫秒数秒数
	private long pauseMillis;//暂停毫秒数
	private Thread clockThread;//走时线程
	private int countState = 2;//计数状态，1是正常计数，2是暂停，3是停止，初始设置为暂停状态
	
	public Time(){
		resetTime();//设置初始值0
		clockThread = new Thread(this);//创建线程
		clockThread.start();//使线程进入就绪状态
	}
	
	@Override
	public void run() {
		
		while(countState != 3){//还没停止，进入循环状态
			if(countState == 1){//正常计数状态
				//定时更新时间
				newMillis = System.currentTimeMillis();//现在的时间
				totalMillis = newMillis - startMillis;//总的毫秒数
				System.out.println(totalMillis);
				second = (int) (totalMillis / 1000) % 60;
				minute = (int) (totalMillis / 1000 / 60);
			}
			try {
				Thread.sleep(1);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		//一旦进入停止状态，线程结束
	}
	
	public void pauseCount(){
		countState = 2;//暂停计数
		pauseMillis = totalMillis;//记录暂停时的总的毫秒数
	}
	
	public void startCount(){
		countState = 1;//开始计数
		startMillis = System.currentTimeMillis() - pauseMillis;//读取虚拟的开始时刻
	}
	
	public void stopCount(){
		countState = 3;//停止计数，此时线程即将死亡
	}
	
	public void resetTime(){
		minute = 0;
		second = 0;
		startMillis = 0;
		pauseMillis = 0;
		totalMillis = 0;
		newMillis = 0;
	}
	
	public int getMinute(){
		return minute;
	}
	
	public int getSecond(){
		return second;
	}
	
	public long getTotal(){
		return totalMillis;
	}

}

主类：

package test;
//还是有问题，我想实现停止计时之后还是使用同个Time对象
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

import time.Time;

public class TimeTest extends JFrame{

	private JLabel timeText,totalText;
	private JButton startButton;
	private JButton pauseButton;
	private JButton endButton;
	private JButton totalButton;
	private Time time  = new Time();
	
	public TimeTest(){
		super("秒表功能演示");
		Container container = getContentPane();
		container.setLayout(new FlowLayout());//设置布局
		timeText = new JLabel("时间：00M:00S");
		totalText = new JLabel("总的毫秒数是：0" );
		container.add(timeText);
		container.add(totalText);
		startButton = new JButton("开始计时");
		pauseButton = new JButton("暂停计时");
		endButton = new JButton("停止计时");
		totalButton = new JButton("总的毫秒数");
		container.add(startButton);
		container.add(pauseButton);
		container.add(endButton);
		container.add(totalButton);
		Listener listener = new Listener();
		startButton.addActionListener(listener);
		pauseButton.addActionListener(listener);
		endButton.addActionListener(listener);
		totalButton.addActionListener(listener);
		setSize(250, 150);
		setVisible(true);
	}
	
	public static void main(String[] args) {
		TimeTest test = new TimeTest();
	}
	
	private class Listener implements ActionListener {

		@Override
		public void actionPerformed(ActionEvent e) {
			if(e.getSource() == startButton){
				time.startCount();
				System.out.println("startcount");
			}
			if(e.getSource() == pauseButton){
				time.pauseCount();
			}
			if(e.getSource() == endButton){
				timeText.setText("时间：" + time.getMinute() + "M:" + time.getSecond() + "S");
				time.stopCount();
				time = null;
				time = new Time();
			}
			if(e.getSource() == totalButton){
				totalText.setText("总的毫秒数是：" + time.getTotal());
			}
		}
		
	} 

}