URI wsUri = server.getWsUri();
Future<Session> future = client.connect(wsocket,wsUri);
ServerConnection connection = server.accept();
List<String> requestLines = connection.readRequestLines();
String key = connection.parseWebSocketKey(requestLines);
// Send Switching Protocols 101, but invalid 'Connection' header
StringBuilder resp = new StringBuilder();
resp.append("HTTP/1.1 101 Switching Protocols\r\n");