public Connection attach()

in src/main/java/com/jetbrains/jdi/SocketTransportService.java [256:295]
31 lines of code
9 McCabe index (conditional complexity)

    public Connection attach(String address, long attachTimeout, long handshakeTimeout)
        throws IOException {

        if (address == null) {
            throw new NullPointerException("address is null");
        }
        if (attachTimeout < 0 || handshakeTimeout < 0) {
            throw new IllegalArgumentException("timeout is negative");
        }

        HostPort hostPort = HostPort.parse(address);

        // open TCP connection to VM
        // formally "*" is not correct hostname to attach
        // but lets connect to localhost
        InetSocketAddress sa = new InetSocketAddress(hostPort.host == null
                                                     ? InetAddress.getLoopbackAddress().getHostAddress()
                                                     : hostPort.host, hostPort.port);
        Socket s = new Socket();
        try {
            s.connect(sa, (int)attachTimeout);
        } catch (SocketTimeoutException exc) {
            try {
                s.close();
            } catch (IOException x) { }
            throw new TransportTimeoutException("timed out trying to establish connection");
        }

        // handshake with the target VM
        try {
            handshake(s, handshakeTimeout);
        } catch (IOException exc) {
            try {
                s.close();
            } catch (IOException x) { }
            throw exc;
        }

        return new SocketConnection(s);
    }