Proxy settings ignored

[demonti]

The library you are using sets the "NO_PROXY" proxy by default, causing any default settings, including the http(s).proxyHost and proxyPort system properties, to be ignored. I was able to fix by adding the following statement to the ACMECommand constructor:

session.setProxy(ProxySelector.getDefault().
  select(URI.create(this.parameters.getAcmeServerUrl())).get(0));

This should also work for environments that do not need proxies, if I understand the Java documentation correctly (the select returns always at least one entry). But I haven't tested it.