.ini file in .jar fails (The filename, directory name, or volume label syntax is incorrect)

Question

So i am trying to add a .ini file to my code and read it using ini4j. It works completely fine untill i try to build it into a jar, then it fails. I get the error stated above and i have no idea why. The file is in the root directory of the jar so there is no issue there.

Code where it fails:

Ini file = new Ini(new File(getClass().getResource("/Settings.ini").toExternalForm()));

Does anyone understand why this is happening and what must be done to solve it?

Thanks