Hello I'm having a problem where an error pops up when trying to run a bat file for my Minecraft server.

 

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:70)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)
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
Press any key to continue . . .

 

here the bat

@echo off
C:\Program Files\Java\jdk1.8.0_251\bin\java.exe -Xmx8192M -Xms8192M -jar Server.jar nogui
PAUSE

 

I've also just found a post from 2018 on how to fix it but do not understand what I'm spouse to do and tried to mimic but failed.
here's the original post

ps the server is forge 1.12.2

Edited December 1, 20205 yr by MrJoeyscaerce

1.12 is no longer supported on this forum.

Please update to a modern version of Minecraft to receive support.