How to write back properties?

[jonas-pietzsch]

I want to persist user input in the properties for a command line tool. I didn't found any information how to write back/overwrite properties to file.
Is there a mechanism that I overlook or do I have to write something on my own?

[tohagan]

This API is currently read-only but it would not be very hard make it writeable.
Basically you'd just serialize your config to JSON and write it to the app's config file.

However, keep in mind that the config you get from this API is merged from many places - some of which you might prefer to not include in the saved JSON file.