This project would be for Jackson data format module for reading and writing data encoded as so-called INI files; textual data format used mostly for configuration files. Such files have been popular on platforms like Windows, as well as for some scripting languages (Python), although usage has been decreasing lately due to introduction of more powerful alternatives, such as XML, JSON and YAML.
But, it has not exactly been implemented yet.
No active development at this point; just a placeholder (as of Jackson 2.7).