title: Post Request With HttpUrlConnection Though a Proxy
body: <p>i want to create a Post Request With <code>HttpUrlConnection</code> Though a Proxy. but I can't fine any way to do that!!</p>
  
  <p><code>URL.openConnection(Proxy proxy)</code> is a GET only method!
  also <code>UrlConnection</code> does not have any method to set Proxy!</p>
  
  <p>Bye the way I don't want to use any http-clients as they are not working for me.</p>
  
  <p>thanks</p>