I’ve just found out the issue is using OpenJDK 11 that comes with Eclipse will throw this error, I’ve gone ahead and change it to Oracle JDK 11 in the eclipse.ini file, from
-vm
plugins/org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_15.0.2.v20210201-0955/jre/bin
to
-vm
C:\Program Files\Java\jdk-11.0.10\bin
Thanks a lot for the help btw, @Julien_HENRY