你能不能告诉我是否应该在等待条件之前释放锁？
try {
lock.lock();
while (isNotEmpty()) {
condition.await();
}
} finally {
lock.unlock();
}
要么
try {
lock.lock();
while (isNotEmpty()) {
lock.unlock();
condition.await();
}
} finally {
lock.unlock();
}
