title: Forge returning error when ran on ubuntu w/ java 17
body: <p>Today i tried to install forge on Ubuntu 20.10 with the command <code>java -jar forge-1.8.9-11.15.1.2318-1.8.9-universal.jar</code> previously i have ran <code>sudo apt update</code> so most of my packages utd well here is the error</p>
  <pre class="lang-java prettyprint-override"><code>We appear to be missing one or more essential library files.
  You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
      at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
      at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
      at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
      at java.base/java.lang.Class.forName0(Native Method)
      at java.base/java.lang.Class.forName(Class.java:398)
      at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25)
      at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
  </code></pre>
  <p>could some one tell me what the problem is i want to use some mods</p>