@Override
    public void doInBeforeTrace(SpanEventRecorder recorder, Object target, Object[] args) throws Exception {
    }
@author minwoo.jung
@author jaehong.kim
agent-module/plugins/httpclient4/src/main/java/com/navercorp/pinpoint/plugin/httpclient4/interceptor/DefaultClientExchangeHandlerImplStartMethodInterceptor.java