Forge 1.12.2 Server not booting up

[wedgevic]

every time I boot up the server it gives this error:

 

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
 

But I know that I have to change the path to Java 8, instead of 9, or 10, I just dont know how to do it.

 

Thanks for the help,

Daniel

[Husky]

This looks like what my server did when I upgraded to Debian 10 and my OpenJDK 8 was replaced with OpenJDK 11.

 

Is this server running on Windows or Linux? We need to make sure that it is using Java 8.

[wedgevic]

1 hour ago, Husky said:

This looks like what my server did when I upgraded to Debian 10 and my OpenJDK 8 was replaced with OpenJDK 11.

 

Is this server running on Windows or Linux? We need to make sure that it is using Java 8.

thanks, I figured it out, all I had to do was get he java 8 path, and I am on windows. Nice workstation btw.