老师，这是正常的情况吗？暂停后到输出剩余吨数的时候还在放水

package com.ethan.test;

import java.util.concurrent.*;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;

public class Test3_13 extends ThreadPoolExecutor {

    private final ReentrantLock lock =  new ReentrantLock();
    private final Condition unpause = lock.newCondition();
    private boolean isPaused;


    public Test3_13(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
    }

    public Test3_13(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
    }

    public Test3_13(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, handler);
    }

    public Test3_13(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler handler) {
        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
    }

    @Override
    protected void beforeExecute(Thread t, Runnable r) {
        super.beforeExecute(t, r);
        lock.lock();
        try{
            while(isPaused){
                unpause.await();
            }
        }catch (InterruptedException e) {
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }

    public void pause(){
        lock.lock();
        try{
            isPaused = true;
        }finally {
            lock.unlock();
        }

    }

    public void resume(){
        lock.lock();
        try{
            isPaused = false;
            unpause.signalAll();
        }finally {
            lock.unlock();
        }


    }

    public static void main(String[] args) {
        Test3_13 test3_13 = new Test3_13(10,20,10l,TimeUnit.SECONDS,new LinkedBlockingQueue<>());
        System.out.println("上班啦，水池放入1000吨水");
        for (int i = 0; i < 10000; i++) {
            test3_13.execute(new RunTest());
        }
        try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        test3_13.pause();
        System.out.println("暂停放水中。。。。。。。。");
        System.out.println("中午啦，回家吃饭啦，水池被暂停了。还剩吨"+test3_13.getQueue().size()+"吨水");


    }
}

class RunTest implements Runnable{
    @Override
    public void run() {
        System.out.println("正在放水");
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            System.out.println("================interrupt===========");
        }
    }
}