What to put in

[kloppie74]

ConfigUpdater.update(this, "Settings.yml", configFile, Arrays.asList(....));

What to place on the .... ?

[tchristofferson]

That is where ignored config sections go. Sometimes a user can add their own keys to the config and you don't want them to disappear. For example, if you have a default section like this:

items:
    item1:
        ...
    item2:
       ...

and a user changes it to this:

items:
    item1:
        ...
    item2:
       ...
    item3:
        ...

By default config updater will overwrite the second config back to the first. If you add "items" to the list of ignored sections the items section will not be overwritten back to default.