method

private StatusLine readStatusLine(WebSocketInputStream input) throws WebSocketException
    {
        String line;

        try
        {
            // Read the status line.
            line = input.readLine();
        }
        catch (IOException e)
        {
            // Failed to read an opening handshake response from the server.
            throw new WebSocketException(
                WebSocketError.OPENING_HANDSHAKE_RESPONSE_FAILURE,
                "Failed to read an opening handshake response from the server: " + e.getMessage(), e);
        }

        if (line == null || line.length() == 0)
        {
            // The status line of the opening handshake response is empty.
            throw new WebSocketException(
                WebSocketError.STATUS_LINE_EMPTY,
                "The status line of the opening handshake response is empty.");
        }

        try
        {
            // Parse the status line.
            return new StatusLine(line);
        }
        catch (Exception e)
        {
            // The status line of the opening handshake response is badly formatted.
            throw new WebSocketException(
                WebSocketError.STATUS_LINE_BAD_FORMAT,
                "The status line of the opening handshake response is badly formatted. The status line is: " + line);
        }
    }