apollo-client/src/main/java/com/ctrip/framework/apollo/internals/YamlConfigFile.java/YamlConfigFile/tryTransformToProperties
class YamlConfigFile:  private boolean tryTransformToProperties() {
    try {
      transformToProperties();
      return true;
    } catch (Throwable ex) {
      Tracer.logEvent("ApolloConfigException", ExceptionUtil.getDetailMessage(ex));
      logger.warn("yaml to properties failed, reason: {}", ExceptionUtil.getDetailMessage(ex));
    }
    return false;
  }