code: public Config parse(File file, Config... overrides) throws IOException {
      if (file == null || file.getPath().trim().length() == 0) {
        throw new MorphlineCompilationException("Missing morphlineFile parameter", null);
      }
      if (!file.exists()) {
        throw new FileNotFoundException("File not found: " + file);
      }
      if (!file.canRead()) {
        throw new IOException("Insufficient permissions to read file: " + file);
      }
      Config config = ConfigFactory.parseFile(file);
      for (Config override : overrides) {
        config = override.withFallback(config);
      }
      
      synchronized (LOCK) {
        ConfigFactory.invalidateCaches();
        config = ConfigFactory.load(config);
        config.checkValid(ConfigFactory.defaultReference()); // eagerly validate aspects of tree config
      }
      return config;
    }
docs: Loads the given config file from the local file system