code: private Configuration buildToolkitConfig() {
  
          // The toolkit configuration file.
          try {
              File configFile = ResourceUtil
                      .getFileForResource("jersey2-toolkit.properties");
              return new PropertiesConfiguration(configFile);
          } catch (ConfigurationException ce) {
              logger.error("jersey2-toolkit.properties not readable,"
                      + " some features may be misconfigured.");
  
              // Return a new, empty map configuration so we don't error out.
              return new MapConfiguration(new HashMap<String, String>());
          }
      }
docs: Builds the configuration object for our toolkit config.
  
  @return A Configuration object.