question: public void testDirectSockets_exceptionIfPortNotOpen ( ) throws IOException { final InetSocketAddress serverAddr1 = new InetSocketAddress ( getPort ( 0 ) ) ; final InetSocketAddress serverAddr2 = new InetSocketAddress ( getPort ( 0 ) ) ; final ServerSocket ss1 = new ServerSocket ( ) ; try { ss1 . bind ( serverAddr1 ) ; assertTrue ( ss1 . getChannel ( ) == null ) ; try { accept ( ss1 ) ; fail ( "Expected timeout failure" ) ; } catch ( AssertionFailedError afe ) { } final SocketChannel cs1 = SocketChannel . open ( ) ; try { final boolean immediate1 = cs1 . connect ( serverAddr1 ) ; if ( ! immediate1 ) { if ( ! cs1 . finishConnect ( ) ) { fail ( "Did not connect." ) ; } } } finally { cs1 . close ( ) ; } final SocketChannel cs2 = SocketChannel . open ( ) ; try { cs1 . connect ( serverAddr2 ) ; fail ( "Expecting " + IOException . class ) ; } catch ( IOException ex ) { if ( log . isInfoEnabled ( ) ) log . info ( "Ignoring expected exception: " + ex ) ; } finally { cs2 . close ( ) ; } try { accept ( ss1 ) ; fail ( "Expected timeout failure" ) ; } catch ( AssertionFailedError afe ) { } } finally { ss1 . close ( ) ; } }
target:  Simple test of connecting to a server socket and the failure to connect to a port not associated with a server socket.