code: private static List<AccessControlEntry> readACLPermisions(List<String> exoPermissions)
     {
        List<AccessControlEntry> naPermissions = new ArrayList<AccessControlEntry>();
  
        for (String perm : exoPermissions)
        {
           naPermissions.add(AccessControlEntry.parse(perm));
        }
  
        return naPermissions;
     }
docs: Return permission values or throw an exception. We assume the node is
  mix:privilegeable.