Is there a sessioning facility in NIO?

Hello there ;)
I was currious are there no any methods in NIO framework which do identify client's packets on server's side? Something like sessioning system. Or is up to user to develop this part? I got no clue, but I rather ask before I do this myself.
Thank You ppl

I don't understand the question. A SocketChannel is a unique connection between this server and a client. In other words it is already a session. You don't have to 'identify client packets' - if they came in over SocketChannel X they are for session X.
If you're looking for somewhere to store your own per-session data, that's what SelectionKey attachments are for.

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