java.lang.NoClassDefFoundError

[uneven aspen]

I am trying to make a minecraft plugin but for some reason i am getting the error: java.lang.NoClassDefFoundError, but i cant find any reason for java to not be able to find the class.

when i go look in the main jar file it is actually in the main jar file at the location the import leads to

Main class: https://pastebin.com/BR99dhg0
PlayerLeave class: https://pastebin.com/YbbUNitX
Full stack trace: https://pastebin.com/YerCkssf

[onyx horizon]

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[brave fractal]

what's the hirachy in the target folder ?

[brave fractal]

i need the hierarchy of the .class files and the pom

[uneven aspen]

do you mean when it is packaged into the jar?

[brave fractal]

yeah that and the hierarchy of the classes folder

[uneven aspen]

here is the hierarchy of the classes folder

[brave fractal]

wait why is it not capitalised

[uneven aspen]

because i changed it at a later point to see if that fixed it

but here is the hierarchy of the jar file

[uneven aspen]

but do you have any idea on how to fix it?

[brave fractal]

not really, the only thing I can think of is adding the folder explicitly to the classpath.

[uneven aspen]

wdym?

[brave fractal]

share your pom

[uneven aspen]

https://pastebin.com/Dx70a9sF

[uneven aspen]

do you have any idea?

[brave fractal]

configuring the classpath how I wanted to doesn't work as intended or I'm doing it wrong. You could try using a different plugin like the maven assembly plugin instead

[uneven aspen]

it just gives me a new error
https://pastebin.com/n213k9Hz

[brave fractal]

what is the hierachy of the newly created jar ?

[uneven aspen]

when i try using the plugin in paper instead of purpur i get this error: https://pastebin.com/igGzf3TW

[uneven aspen]

after some testing i have figured out that it isnt the case that it cant find the class, but that the class is locked, i have narrowed it down to the createTable function in this file: https://hastebin.skyra.pw/monuzumuhu.java do you maybe have any idea what is causing the file to be locked?

but im going to sleep now, i hope i will be able to find the error tommorow

[uneven aspen]

actually nevermind, i have found the problem and managed to fix it, so far i know the problem is that the CreateTable function was trying get the connection to the database but for some reason when i checked if there was a connection using a function that also needed the connection to check if there is a connection but for some reason the function didnt let go of the connection or smth like that causing the CreateTable function to not being able to get the connection and in turn causing a deadlock.