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Matt Kusnierz commented on SSHD-554: ------------------------------------ This code org.apache.sshd.common.io.nio2.Nio2Service: try { socket.setOption(option, val); } catch (IOException e) { logger.warn("Unable to set socket option " + option + " to " + val, e); } Doesn't work as expected, as the sun.nio.ch.WindowsAsynchronousServerSocketChannelImpl[unbound] throws an UnsupportedOperationException, not an IOException, so the try/catch and logged warning doesn't work as expected. So this try catch method should probably catch all Exceptions, not just IOExceptions... But the bigger question; is why is this option not supported and/or cannot be set at this time. > Cannot set SO_KEEPALIVE on SshServer > ------------------------------------ > > Key: SSHD-554 > URL: https://issues.apache.org/jira/browse/SSHD-554 > Project: MINA SSHD > Issue Type: Bug > Affects Versions: 0.14.0 > Reporter: Matt Kusnierz > > When trying to create an SshServer and configuring SO_KEEPALIVE by setting: > getProperties().put(FactoryManager.SOCKET_KEEPALIVE, "true"); > The following exception is thrown: > java.lang.UnsupportedOperationException: 'SO_KEEPALIVE' not supported > at > sun.nio.ch.AsynchronousServerSocketChannelImpl.setOption(AsynchronousServerSocketChannelImpl.java:187) > ~[na:1.8.0] > at > sun.nio.ch.AsynchronousServerSocketChannelImpl.setOption(AsynchronousServerSocketChannelImpl.java:47) > ~[na:1.8.0] > at > org.apache.sshd.common.io.nio2.Nio2Service.setOption(Nio2Service.java:94) > ~[sshd-core-0.14.0.jar:0.14.0] > at > org.apache.sshd.common.io.nio2.Nio2Acceptor.bind(Nio2Acceptor.java:60) > ~[sshd-core-0.14.0.jar:0.14.0] > at > org.apache.sshd.common.io.nio2.Nio2Acceptor.bind(Nio2Acceptor.java:74) > ~[sshd-core-0.14.0.jar:0.14.0] > at org.apache.sshd.SshServer.start(SshServer.java:294) > ~[sshd-core-0.14.0.jar:0.14.0] -- This message was sent by Atlassian JIRA (v6.3.4#6332)