Java线程，消费者不想结束

Question

为什么我的Thread（Runnable）一旦到达块的末尾就不会离开run（）方法？

这是代码：

    app.run(['$rootScope', '$state', function($rootScope, $state) {
    $rootScope.$on('$stateChangeStart', function(evt, to, params) {
      if (to.redirectToChild) {
        evt.preventDefault();
        $state.go(to.redirectToChild.state, params)
      }
    });
}]);

 app.config([ '$stateProvider', '$urlRouterProvider', function($stateProvider, $urlRouterProvider) {
    $urlRouterProvider.otherwise("/404");
    .state('customers', {
        url: '/customers',
        templateUrl: 'app/customer/parent.html',
        redirectToChild: {
                state: 'customers.list'
            },
    })
    .state('customers.list', {
        parent: 'customers',
        url: '',
        controller: 'customerCtrl as customer',
        templateUrl: 'app/customer/index.html'
    })

    .state('customers.birthday', {
        parent: 'customers',
        url: '/birthday',
        templateUrl: 'app/customer/birthday.html',
    })
}]);

理想情况下，它应该正常结束，然后我的main（）方法会启动其他东西：

//1 Entry point for thread with run method
public void run() {
    System.out.println("Hashmaker():/run(). " + threadName + " Running "  );
    try {
        String original = in;
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(original.getBytes());
        byte[] digest = md.digest();
        StringBuffer sb = new StringBuffer();
        for (byte b : digest) {
            sb.append(String.format("%02x", b & 0xff));
            System.out.println("Hashmaker:/run(). original: " + original);
            System.out.println("Hashmaker:/run(). digested(hex):" + sb.toString());
            //src http://www.avajava.com/tutorials/lessons/how-do-i-generate-an-md5-digest-for-a-string.html
        }
            // Let the thread sleep for a while.
            //Thread.sleep(7);
            System.out.println("Hashmaker:/run(). Thread: " + threadName + " recieved a clear password = " + in);
            //Save the hash
            hash=sb.toString();
    }
    /*catch (InterruptedException e) {
        System.out.println("Hashmaker:/run(). Thread " +  threadName + " interrupted.");
    } */
    catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    System.out.println("Hashmaker:/run(). Thread " +  threadName + " exiting.");
}

正常情景对我来说，是：创建并启动一个线程来生成摘要MD5哈希，获取哈希，用它来提供消费者线程并强制它直到一个暴力哈希给出一个＆＃34; compareTo＆＃34;秘密哈希== 1.