Disable automatic class deserialization for YAML configs

I'm currently in the process of rewriting a plugin and decided to change the config format. Now I saved it with Bukkit's automatic class serialization via

Code:

ConfigurationSerialization.registerClass(SomeClazz.class);

I wanted to manually deserialize it, but Bukkit always gives me errors that SomeClazz doesn't exist - which is true - but can I disable automatic deserialization?

Thanks in advance,
Philipp15b