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Trying to make a server for me and my friends, get this error

Spoog Cook
in Support & Bug Reports

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Posted

D:\Games\Minecraft\Servers\Forge 1.15.2 Server for PC Challenge>java -Xmx4092M -Xms4092M -jar forge.jar nogui
2021-09-24 23:31:10,297 main WARN Advanced terminal features are not available in this environment
←[32m[23:31:10] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 31.2.0, --fml.mcpVersion, 20200515.085601, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, nogui]
←[m←[32m[23:31:10] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 5.1.0+69+master.79f13f7 starting: java version 16.0.1 by Oracle Corporation
←[mjava.lang.NoSuchFieldException: ucp
        at java.base/java.lang.Class.getDeclaredField(Class.java:2549)
        at cpw.mods.gross.Java9ClassLoaderUtil.getSystemClassPathURLs(Java9ClassLoaderUtil.java:28)
        at cpw.mods.modlauncher.TransformationServicesHandler.discoverServices(TransformationServicesHandler.java:139)
        at cpw.mods.modlauncher.Launcher.run(Launcher.java:74)
        at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
        at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63)
        at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60)
        at net.minecraftforge.server.ServerMain.main(ServerMain.java:57)
Exception in thread "main" java.lang.NullPointerException: Cannot read the array length because "urls" is null
        at java.base/jdk.internal.loader.URLClassPath.<init>(URLClassPath.java:153)
        at java.base/jdk.internal.loader.URLClassPath.<init>(URLClassPath.java:174)
        at java.base/java.net.URLClassLoader.<init>(URLClassLoader.java:149)
        at cpw.mods.modlauncher.TransformationServicesHandler$TransformerClassLoader.<init>(TransformationServicesHandler.java:159)
        at cpw.mods.modlauncher.TransformationServicesHandler.discoverServices(TransformationServicesHandler.java:139)
        at cpw.mods.modlauncher.Launcher.run(Launcher.java:74)
        at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
        at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63)
        at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60)
        at net.minecraftforge.server.ServerMain.main(ServerMain.java:57)

D:\Games\Minecraft\Servers\Forge 1.15.2 Server for PC Challenge>PAUSE
Press any key to continue . . .

1.15 is no longer supported on this forum.
Please update to a newer version of Minecraft to receive support (1.16 or 1.17).
 

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