title: Authorization for java web app using Azure AD roles
body: <p>i am looking at the ADAL for java project.
  I understand the auth portion ok.</p>
  
  <p>But i cannot find how to authorize the user against the ROLES in the AD.</p>
  
  <p>what have i missed?</p>
  
  <p>thanks</p>
  
  <p>-lp</p>