Paper to require java 11 with 1.17 release (currently shows warning)

[gerome1812]

On using java 8, paper prints this message telling you you need to install java 11 for paper to work 1.17.

[itzg]

Very interesting. For now, you can change your image to the tagged one itzg/minecraft-server:adopt11; however, it sounds like I'll need to consider making that the mainline/latest since Forge is the only remaining reason I default to Java 8.

[gerome1812]

I wasn't very clear in my first comment, but they made a post here with more details: papermc.io/java11. It actually is not an issue at all until 1.17 (probably sumer 2021), but they are just pringing this huge warning for now.

[xorinzor]

I'm actually running into the issue while setting up a server too. Where plugins actually fail to load because they've been compiled with a higher version then is used in the docker container.

Can confirm that using itzg/minecraft-server:adopt11 fixed this issue for me.

[Davie3]

The adopt11 image tag work great in the meantime. The arm images will also need to be updated to java 11: itzg/minecraft-server:armv7 and itzg/minecraft-server:arm64.

[itzg]

Yep, please use itzg/minecraft-server:adopt11 in the meantime; however, I'm very soon going to switch master/latest to Java 11 and have already introduced a java8 tag. I will also be bumping multiarch (where ARM is now supported) to Java 11.

[itzg]

As of this revision 96aa105 the master-branch/latest-tag and multiarch is now based on Java 11.