i am trying to set up a server for me and a friend to be able to play but when i try to launch the forge.jar all i get is 
 
	 
 
	 
	D:\Thaumcraft server>java -Xmx8G -Xms1G -jar forge.jar nogui 
	A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException 
	        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
	        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
	        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
	        at java.base/java.lang.reflect.Method.invoke(Unknown Source) 
	        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:62) 
	        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31) 
	Caused by: java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader 
	        at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) 
	        at net.minecraft.launchwrapper.Launch.main(Launch.java:28) 
	        ... 6 more
 
	D:\Thaumcraft server>pause 
	Press any key to continue . . .