Very likely such a thing will be pinned to a few OS threads and then interact with a virtual thread pool to farm out work. In general most Java I/O is native b

Very likely such a thing will be pinned to a few OS threads and then interact with a virtual thread pool to farm out work. In general most Java I/O is native because it's "sufficiently fast" for such things. Netty is the exception rather than the rule in this regard.