[init] Running as uid=1000 gid=1000 with /data as 'drwxrwxrwx    3 1000     1000          4096 Apr 10 17:32 /data'
[init] Resolved version given 1.16.5 into 1.16.5
[init] Resolving type given FORGE
[init] **********************************************************************
[init] WARNING: The image tag itzg/minecraft-server:java8 is recommended
[init]          since some mods require Java 8
[init]          Exception traces reporting ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader
[init]          can be fixed with java8
[init] **********************************************************************
[init] Checking Forge version information.
[init] Downloading 1.16.5-31.1.10-1.16.5
[init] ...trying http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.16.5-31.1.10-1.16.5/forge-1.16.5-31.1.10-1.16.5-installer.jar
curl: (22) The requested URL returned error: 404 Not Found
[init] ...trying http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.16.5-31.1.10/forge-1.16.5-31.1.10-installer.jar
curl: (22) The requested URL returned error: 404 Not Found
[init] Unable to compute URL for 1.16.5-31.1.10-1.16.5