code: public static Config getFixedConfig(final String ... keyValuePairs)
      {
          final ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
  
          if (keyValuePairs != null) {
              for(final Iterator<String> it = Arrays.asList(keyValuePairs).iterator(); it.hasNext();) {
                  final String key = it.next();
                  if (it.hasNext()) {
                      builder.put(key, it.next());
                  }
                  else {
                      LOG.warn("Found an odd number of arguments for key/value pairs. Ignoring key %s", key);
                      break;
                  }
              }
          }
          return getFixedConfig(new MapConfiguration(builder.build()));
      }
docs: Creates a fixed configuration for the supplied key/value pairs. The number of elements passed in must be an
  even number of elements, otherwise the last one is ignored.
  
  Config objects created from this method will not accept overrides from system properties.