I\'ve got a Maven settings.xml file in my ~/.m2 directory; it looks like this:
settings.xml
~/.m2
I haven't tried it, but as per this maven wiki page, you should be able to refer to properties in settings.xml using settings. prefix. So ${settings.servers.server.username} should ideally return the username in settings.xml.
settings.
${settings.servers.server.username}
username