proxySelectEnd
Invoked after proxy selection.
Note that the list of proxies is never null, but it may be a list containing only Proxy.NO_PROXY. This comes up in several situations:
If neither a proxy nor proxy selector is configured.
If the proxy is configured explicitly as Proxy.NO_PROXY.
If the proxy selector returns only Proxy.NO_PROXY.
If the proxy selector returns an empty list or null.
Otherwise it lists the proxies in the order they will be attempted.
Parameters
url
a URL with only the scheme, hostname, and port specified.