Hi @greatjava,
Don't worry about it, it happens..
Yes, unfortunately, the auto generator is not perfect, it actually does a rather decent job for some languages, like PHP but less so for Java.
You are most welcome to help us improve it though, you can start looking here:
https://github.com/kaltura/server/tree/Kajam-11.7.0/api_v3/web/testme
and here:
https://github.com/kaltura/server/tree/Kajam-11.7.0/generator
We actually have developer.kaltura.org which is meant to help with that by providing real life working examples. It currently supports NodeJS, JS, PHP and Ruby but we do intend to add additional languages, including Java.