code: private static List<String> getDependencies(Config config) {
      return config.hasPath(ConfigurationKeys.JOB_DEPENDENCIES) ? Arrays
          .asList(config.getString(ConfigurationKeys.JOB_DEPENDENCIES).split(",")) : new ArrayList<>();
    }
docs: Get job dependencies of a given job from its config.
  @param config of a job.
  @return a list of dependencies of the job.