Cant start forge 1.12.2 server through bat or cmd

[RJVB09]

When i try to boot up my forge 1.12.2 14.23.5.2859 server through bat or cmd i keep getting an error. However it boots up fine when i just click the .jar file (with the main concerning disadvantage being that i don't know how to specify RAM in that way. It just defaults to 1Gb resulting in shitty performance)
 

D:\MinecraftServer\ModpackServer>java -Xmx4096M -Xms4096M -jar forge-1.12.2-14.23.5.2859.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(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)
Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
        at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
        ... 6 more

D:\MinecraftServer\ModpackServer>PAUSE
Press any key to continue . . .

^ this was with a bat file containing

java -Xmx4096M -Xms4096M -jar forge-1.12.2-14.23.5.2859.jar nogui
PAUSE

 

and yes, the jar file name is correct i've checked it multiple times

 

This is what is in my Java folder, if that is of any help

 

Thanks in advance