anchor.diff:  
   				_addToCache(user);
   				return user;
  -			} catch (_) {
  -				Log.warning('User <email=$email> not found');
  +			} catch (e) {
  +				Log.warning('User <email=$email> not found', e);
   				return new User();
   			} finally {
   				dbManager.closeConnection(dbConn);
  
positive.code: 
  				_addToCache(user);
  				return user;
  			} catch (_) {
  				Log.warning('User <username=$username> not found');
  				return new User();
  			} finally {
  				dbManager.closeConnection(dbConn);
  
negative.code: 
  				_addToCache(user);
  				return user;
  			} catch (e) {
  				Log.warning('User <id=$id> not found', e);
  				return new User();
  			} finally {
  				dbManager.closeConnection(dbConn);
  