Downloading vanilla jar offline

[weironz]

Enhancement Type

A completely new feature

Describe the enhancement

when i run a paper server ,it need lots of time Downloading vanilla jar to cache dir

[init] Running as uid=1000 gid=1000 with /data as 'drwxrwxr-x 4 1000 1000 4096 Dec 16 14:41 /data'
[init] Resolved version given 1.17.1 into 1.17.1
[init] Resolving type given PAPER
[init] Removing old PaperMC versions ...
[init] Downloading PaperMC 1.17.1 (build 381) ...
[init] Copying plugins over...
[init] server.properties already created, skipping
[init] Updating ops
[init] Checking for JSON files.
[init] Setting initial memory to 1G and max to 1G
[init] Starting the Minecraft server...
Downloading vanilla jar...

why can not i use a offline vanilla jar file?

[itzg]

Yes that is annoying but probably a better question for the PaperMC people.