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[Bug] OptiForge transformation behaviors does not work for OpenJ9 JRE14

reo-ar opened this issue ยท 1 comments

commented

Description

OpenJ9 JRE14 works on latest Forge versions fine except for when OptiForge is installed. Where it will throw transformation behavior errors.

How to reproduce

Run Minecraft Forge with OptiForge and Optifine previews in 1.15.2.

Logs

https://paste.ee/p/12xHK

Note: I do understand that OpenJ9 JRE 14 isn't supported officially by Forge, but it does run perfectly fine on the transformation behaviors except for when Optiforge is installed.

commented

Forge itself does NOT support OpenJ9 JVM.
AdoptOpenJDK 14 with OpenJ9 JVM just happened to modify the value of the java.vendor property from Eclipse OpenJ9 to AdoptOpenJDK so that modlauncher couldn't detect it.

See McModLauncher/modlauncher@1f9473a