Test Moji concurrency behavior

MogileOperator.java

import fm.last.moji.MojiFile;

/**
 * Created by developer on 4/30/15.
 */
class MogileOperator implements Runnable {

    @Override
    public void run() {
        MojiFile rickRoll = TestMojiConcurrency.moji.getFile("rick-astley");
        while(true) {
            try {
                rickRoll.exists();
                System.out.println(Thread.currentThread().getId());
                Thread.sleep(0);
            } catch (Exception e) {
                e.printStackTrace();
                System.exit(-1);
            }
        }
    }
}

TestMojiConcurrency.java

import fm.last.moji.spring.SpringMojiBean;

/**
 * Created by developer on 4/30/15.
 */
public class TestMojiConcurrency {
    static SpringMojiBean moji;
    public static void main(String[] args) {

        moji = new SpringMojiBean("tracker01:7001, 10.144.129.203:7001", "dom1");
        moji.setTestOnBorrow(true);

        int count = 1;
        if (args.length !=0) {
            count = Integer.parseInt(args[0]);
        }
        for (int i=0; i < count; i++) {
            Thread t = new Thread(new MogileOperator());
            t.start();
        }

    }
}