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So I have this tiny problem I started a forge world server and well This is the Error I get because I don't know what i'm doing wrong

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)

Some Help will be appreciated

Now this is my Error so I got rid of Java 9 and now this error pops up

[20:49:54] [Server thread/INFO]: Starting minecraft server version 1.12.2
[20:49:54] [Server thread/INFO]: Loading properties
[20:49:54] [Server console handler/ERROR]: Exception handling console input
java.io.IOException: The handle is invalid
at java.io.FileInputStream.readBytes(Native Method) ~[?:?]
at java.io.FileInputStream.read(Unknown Source) ~[?:?]
at java.io.BufferedInputStream.read1(Unknown Source) ~[?:?]
at java.io.BufferedInputStream.read(Unknown Source) ~[?:?]
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) ~[?:?]
at sun.nio.cs.StreamDecoder.implRead(Unknown Source) ~[?:?]
at sun.nio.cs.StreamDecoder.read(Unknown Source) ~[?:?]
at java.io.InputStreamReader.read(Unknown Source) ~[?:?]
at java.io.BufferedReader.fill(Unknown Source) ~[?:?]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:?]
at java.io.BufferedReader.readLine(Unknown Source) ~[?:?]
at nz$2.run(SourceFile:100) [minecraft_server.1.12.2.jar:?]
[20:49:54] [Server thread/INFO]: Default game type: SURVIVAL
[20:49:54] [Server thread/INFO]: Generating keypair
[20:49:54] [Server thread/INFO]: Starting Minecraft server on 10.0.138:25566
[20:49:54] [Server thread/INFO]: Using default channel type
[20:49:55] [Server thread/INFO]: Preparing level "world"
[20:49:55] [Server thread/INFO]: Loaded 488 advancements
[20:49:55] [Server thread/INFO]: Preparing start region for level 0
[20:49:57] [Server thread/INFO]: Preparing spawn area: 11%
[20:49:58] [Server thread/INFO]: Preparing spawn area: 69%
[20:49:58] [Server thread/INFO]: Done (3.279s)! For help, type "help" or "?"
[20:50:01] [Server thread/INFO]: Stopping server
[20:50:01] [Server thread/INFO]: Saving players
[20:50:01] [Server thread/INFO]: Saving worlds
[20:50:01] [Server thread/INFO]: Saving chunks for level 'world'/overworld
[20:50:01] [Server Shutdown Thread/INFO]: Stopping server
[20:50:01] [Server Shutdown Thread/INFO]: Saving players
[20:50:01] [Server Shutdown Thread/INFO]: Saving worlds
[20:50:01] [Server Shutdown Thread/INFO]: Saving chunks for level 'world'/overworld