WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by GradleStart (file:/C:/Users/welfj/.gradle/caches/minecraft/net/minecraftforge/forge/1.12.2-14.23.4.2705/start/) to field java.lang.ClassLoader.sys_paths
WARNING: Please consider reporting this to the maintainers of GradleStart
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[21:33:04] [main/INFO] [GradleStart]: Extra: []
Exception in thread "main" java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader
	at net.minecraftforge.gradle.GradleForgeHacks.searchCoremods(GradleForgeHacks.java:85)
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:86)
	at GradleStart.main(GradleStart.java:25)