Strange Quake Injector Quirk

Hi all. I have been playing Quake for the first time recently and after completing it I wanted to check out custom maps so I grabbed Quake Injector. Have the relevant JDK installed so everything runs alright with one odd quirk.

If I load up Quake Injector directly through Power Shell command (java -jar quakeinjector.jar) everything runs flawlessly, but if I open it directly using JDK it consistently gives me failures to parse database so it downloads nothing. Was curious if I’ve missed something here?

Sounds like some firewall or something. Are you sure the same Java executable being used?