Quote: "was this problem fixed ?"
i dont think the problem in this instance was identified, but:
doesn't sound right (i think that's runtime environment and not
the required Java Development Kit
it's been ~a year since JDK became required and JDK 17 was current at the time. i haven't had to revisit/think about setting up since then (and i've been exporting APK/AAB fine since including with later/current versions of Studio/Classic) but this was the go-to "guide" https://forum.thegamecreators.com/thread/227903#msg2666789
that most of us followed successfully.
i recall 1 on the forum or discord server having an issue with JDK 18 when it was released who reverted to 17 successfully and another who advised that OpenJDK did
provide successful export but i haven't tested myself (again, i havent had the need).
and, i know there was some provision for JDK pathing issues re: "\bin" on non
-WIN systems that weren't auto-detecting the path that involved a text file containing the path that was saved somewhere where studio could read it in but i don't readily see the post/advice; that would be worth a search if the steps outlined in the "guide" didn't get you up and running.
hopefully the "guide" and the above helps whomever needs it but i can assure you that some of us were and are exporting without issue (once we dialed in the set-up).
this was the thread and dialogue for the initial studio release which brought JDK into the picture: https://forum.thegamecreators.com/thread/227848
that may be worth your time.
there were subsequent updates re: JDK with orvillion's release announcements since
along with a number of random threads created by users at the time (most of which i moved to the android board
there may be more info about resolving any related issues some folks were experiencing scattered about, so... if you have the time, "good hunting" to you