title: Java System Properties reset http.proxyHost and ProxyPort
body: <p>Simple question, how do I reset the http.proxyHost and http.Proxy properties back to the default?</p>
  
  <p>The reason I ask is I have an application that the end user specifiy's proxy and goes to the next screen.  There may be an event where they go back and decide not to use a proxy.  </p>
  
  <p>So I guess the question is how do i set both properties back to the default so no proxy is being used?</p>