Hello again i have a question everytime when i change something at my java i must complie again and copy the files at my pack?

If it's core, java change - then yes. You have to compile it and ONLY update your l2jserver.jar

 

If it's datapack change, then you ONLY copy the modified file.

6 hours ago, SweeTs said:

If it's core, java change - then yes. You have to compile it and ONLY update your l2jserver.jar

 

If it's datapack change, then you ONLY copy the modified file.

okay, you mean that if i change something in core/gameserver i must compile and copy only l2jserver.jar
and if i change something at datapack i take only the one file that i change right?

Um, yes, it's what I just said