Issue

(Spring Legacy) Always take note of your output directory (배포 파일). For example, I had 4 ojdbc files in my output directory file so there were conflicts of multiple versions. JVM always executes the one that is the “oldest” so even though I added the correct new one, it is not updated properly. I thought I was adding it properly via Library in my Project Structure but that is not the case. You have to check your output directory, which can be found in Project Sturcutre’s artifact tab.