apollo-client/src/main/java/com/ctrip/framework/apollo/build/ApolloInjector.java/ApolloInjector/getInstance
class ApolloInjector:  public static <T> T getInstance(Class<T> clazz) {
    try {
      return getInjector().getInstance(clazz);
    } catch (Throwable ex) {
      Tracer.logError(ex);
      throw new ApolloConfigException(String.format("Unable to load instance for type %s!", clazz.getName()), ex);
    }
  }