private HttpConnection getArgument(Object[] args) {
        return ArrayArgumentUtils.getArgument(args, 0, HttpConnection.class);
    }
@author Taejin Koo
@author jaehong.kim
<p>
jetty-8.0
agent-module/plugins/jetty/src/main/java/com/navercorp/pinpoint/plugin/jetty/javax/interceptor/Jetty80ServerHandleInterceptor.java