http.nonProxyHosts (default: localhost|127.*|[::1])
The above 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 host in the foo.com domain and the localhost should be accessed directly even if a proxy server is specified.
The default value excludes all common variations of the loopback address.
See also:
Using ProxySelector to take control of what proxies to use and when