Network Proxy configuration for Wildfly swarm

Maven Resolver does not take the proxy configuration from the default settings.xml.
Note the version used is captured from the wildfly bom 2017.1.1.

When running this example: https://github.com/abelsromero/wildfly-swarm-poc/blob/master/src/test/java/org/abelsromero/swarm/FilesResourceTest.java, for first time you must be in an open network so that Arquillian can download some jboss/wildfly dependencies.
Once it is is done, you can go back to your "normal" corporate network behind a proxy.

There are some options like manually adding the dependencies (http://stackoverflow.com/questions/6291146/arquillian-shrinkwrap-mavendependencyresolver-behind-proxy) so that they are downloaded from maven, but this is not practical.
Also, some googling shows mentions of a method to configure the settings.xml file directly in the resolver, however this method is not available in the version used.

I open this as a "clarification" since it seems to me I am missing something being the proxy configuration something basic. However, I have tried several options and nothing works.
Note that I have several other applications running without issues, maven, gradle, shells, etc.