Cann't intercept HttpUrlConnection in sample004

[1923982924]

run main with agent,it hasn't print intercepting message

----this is an bytebuddy sample ----- ++++++++ class name = sun.net.www.protocol.http.HttpURLConnection ====1=GET ====2={Accept-Ranges=[bytes], null=[HTTP/1.1 200 OK], Server=[bfe/1.0.8.18], Etag=["588604c8-94d"], Cache-Control=[private, no-cache, no-store, proxy-revalidate, no-transform], Connection=[Keep-Alive], Set-Cookie=[BDORZ=27315; max-age=86400; domain=.baidu.com; path=/], Pragma=[no-cache], Last-Modified=[Mon, 23 Jan 2017 13:27:36 GMT], Content-Length=[2381], Date=[Wed, 03 Apr 2019 07:11:39 GMT], Content-Type=[text/html]}