java: package javafx.application does not exist

[PerryCameron]

One thing I have found strange with this setup is the inability to use a run configuration from the IDE. I am sure I am missing something, but I am able to use "mvn javafx:run" in the terminal of intellij and the program will launch. If however, I try to set up a run configuration and run it directly from the IDE I get a bunch of "java: package javafx.application does not exist" style errors. I find this strange since I am using 19.fx-zulu where the packages are included. It is acting like it is looking for modules. Do you have any clues to what may be going on here?

[wiverson]

Yup.

To fix, you will need to turn off download shared indexes in IntelliJ and invalidate caches.

Preferences -> Tools -> Public Shared Indexes -> JDKs -> Don't Download
File -> Invalidate Caches or File -> Repair IDE

tl;dr - the shared index IntelliJ downloads does not include JavaFX.

FWIW Once that's all done you should be able to run & debug just by launching the main() method, e.g. BaseApplication.main. You can click the run button in the gutter the first time and then run/debug after that.

[PerryCameron]

No, I haven't set that. Not even sure where it is. I set it to 19.fx-librca and getting the same problem.

[PerryCameron]

Well, It launches for eclipse without any issue

[wiverson]

Huh. Not sure what going on. I would assume that it's something to do with your IntelliJ config but not sure what. :/

FWIW I left this branch up as the last version that broke apart the JDK from the JavaFX jmods. You will have to be careful to match JavaFX versions w/ the JDK you are using, but it did seem to play nicer w/IntelliJ.

[PerryCameron]

I went ahead and put in the question to Intellij. We shall see what they come up with.

https://intellij-support.jetbrains.com/hc/en-us/community/posts/7945591296274-javafx-application-does-not-exist

[PerryCameron]

Well I moved it to Java 17 and now it works.