public boolean sendOnSharedLine(Stringmessage)
throws InterruptedException{
lock.lockInterruptibly(); //如果当前线程未被中断，则获取锁定。
try{
return cancellableSendOnSharedLine(message);
}finally{
lock.unlock();
}
}
private boolean cancellableSendOnSharedLine(String message)
throwsInterruptedException{...}
}