Use OpenOlat endpoint to fetch user information

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java

@@ -332,14 +332,14 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
     }
 
     private ExamineeAccountDetails getExamineeById(final RestTemplate restTemplate, final String id) {
-        final String url = String.format("/restapi/users/%s/name_username", id);
+        final String url = String.format("/restapi/users/%s", id);
         final UserData u = this.apiGet(restTemplate, url, UserData.class);
         final Map<String, String> attrs = new HashMap<>();
         return new ExamineeAccountDetails(
                 String.valueOf(u.key),
                 u.lastName + ", " + u.firstName,
-                u.username,
-                "OLAT API does not provide email addresses",
+                u.login,
+                u.email,
                 attrs);
     }
 

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsData.java

@@ -48,13 +48,15 @@ public final class OlatLmsData {
          * "firstName": "OpenOLAT",
          * "key": 360448,
          * "lastName": "Administrator",
-         * "username": "administrator"
+         * "login": "administrator",
+         * "email": "admin@example.org"
          * }
          */
         public long key;
         public String firstName;
         public String lastName;
-        public String username;
+        public String login;
+        public String email;
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)