public String getInstantiatorClassName() {
      return instantiatorName;
    }
Lazily creates a new {@code Instantiator} with the given class and id.

This method is only called when server connection and CacheClientUpdaterThread

@throws IllegalArgumentException The instantiator cannot be created
@throws IllegalStateException The instantiator cannot be registered
geode-core/src/main/java/org/apache/geode/internal/InternalInstantiator.java