Virtual Thread vs NIO

[kronos72it]

Hi, I am reading https://openjdk.org/jeps/425 with very interest and ,
perhaps I am at beginning ,I have a question.
In "Improving scalability with the asynchronous style" section it mean that
the news of Virtual Thread is Asynch mechanism related to dead times of IO
.But I ask, doesn't this the same concept already present in NIO api ?

thanks
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