chore: Fix the type definition of additionalJVMConfig

[heitorrbarros]

Please squash both commits. You could also use a more descriptive commit message, maybe something like:

Fix default value for additionalJVMConfig 

`additionalJVMConfig` expects a list, so the default value should not be an empty object.

Ok, done 950e33837c38cdc31f4ef6eca411c8d91ec3b041

Thanks @nineinchnick