private void handleHandshakeWorkDone(Connection conn) {
        if (conn.isClosed()) {
            return;
        }
        try {
            conn.handleHandshakeWorkDone();
        } catch (IOException e) {
            conn.setLostReason(e);
            handleCloseConnection(conn);
        }
    }
A single reactor/scheduler thread inside a potentially
multi-threaded {@link Transport}.
jrt/src/com/yahoo/jrt/TransportThread.java