For HTTP Traffic:

http.proxyHost (default: <none>)

The host name, or address, of the proxy server

http.proxyPort (default: 80) The port number of the proxy server.

http.nonProxyHosts (default: localhost|127.*|[::1])

Indicates the hosts that should be accessed without going through the proxy. Typically this defines internal hosts. The value of this property is a list of hosts, separated by the '|' character. In addition the wildcard character '*' can be used for pattern matching. For example -Dhttp.nonProxyHosts=”*.foo.com|localhost” will indicate that every hosts in the foo.com domain and the localhost should be accessed directly even if a proxy server is specified.

For HTTPS Traffic:

https.proxyHost(default: <none>)

The host name, or address, of the proxy server

https.proxyPort (default: 443)

The port number of the proxy server.

Note: The HTTPS protocol handler will use the same nonProxyHosts property as the HTTP protocol.