Does SocketChannel.close() close the socket also?

Question

I have a server program that needs to close any connections that remain when the server is shutting down. I know I need to call SocketChannel.close(). My question is if I also need to close the Socket associated with the SocketChannel or if SocketChannel.close() does that automatically.

user207421 · Answer 1 · 2013-05-21T07:03:08.423

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Of course it closes the socket. What else would it be for? The only exception is when the channel is registered with a Selector, when the actual close is deferred to the next select operation.

edited May 21 '13 at 07:03

answered May 21 '13 at 00:01

user207421

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xagyg · Accepted Answer · 2013-05-21T02:52:29.920

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SocketChannel.close() should close the Socket. However, there have been some bugs around this issue (should have been solved a long time ago). http://bugs.sun.com/view_bug.do?bug_id=4960962. Another situation that can cause problems: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6179351

edited May 21 '13 at 02:52

answered May 20 '13 at 23:45

xagyg

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The bug you now cite shows 'Resolved date: 2005-04-16'. If you've been having difficulties in this area, it is almost certainly because of the delayed close referred to in my answer. – user207421 May 21 '13 at 02:12

Does SocketChannel.close() close the socket also?

2 Answers2