code: public ResultsWrapper<User> getUsers(Map<String, String> parameters) throws RedmineException {
          return DirectObjectsSearcher.getObjectsListNoPaging(transport, parameters, User.class);
      }
docs: <p>This method does NOT handle paging for you. You need to provide "offset" and "limit" parameters
  if you want to control paging.
  <p>Sample usage:
  <pre>
  final Map<String, String> params = new HashMap<String, String>();
  params.put("name", name);
  final List<User> users = userManager.getUsers(params);
  </pre>
  
  @param parameters http parameters: key/value pairs to append to the rest api request
  @return resultsWrapper with raw response from Redmine REST API
  @throws RedmineAuthenticationException invalid or no API access key is used with the server, which
  requires authorization. Check the constructor arguments.
  @throws RedmineException