Looking up FilterController returns null

[seinecle]

FilterController filterController = Lookup.getDefault().lookup(FilterController.class);

Here, filterController is null after the statement. Not sure what's going on.

To reproduce: launch the TopicDetectionFunction main class (replace the gexf by one you've got) in this repo:

https://github.com/seinecle/topics-detection-function

[seinecle]

Make sure to import the gephi-toolkit dependency, not individual dependencies for each module.