How to use HttpsURLConnection through proxy by setProperty?

Question

Network environment:

Https Client<=============>Proxy Server<==============>Https Server
       

Answer 1

Your URL connection is https whereas you are only setting the http proxy.

Try setting the https proxy.

//System.setProperty("https.proxySet", "true"); 
 System.setProperty("https.proxyHost",10.100.21.11);
 System.setProperty("https.proxyPort","443");

EDIT @EJP is correct. There is no https.proxySet .. I copied your original question and included in the answer.