title: System properties: user.region or user.country
body: <p>I searched after which are the system properties for the default locale. I found many places something like that: <code>user.language</code> (it worked) and <code>user.region</code> (wont work). After a deeper search I found a <code>user.country</code> (which kinda worked - returned with the result what supposed to be returned by the <code>user.region</code>).</p>
  
  <p>So how is that? Those reference are all wrong or did I miss something?</p>