TechnicallyCoded
FoliaLib can't detect Folia
Hi, after i followed all the istructions and started the server, it still can't detect Folia, showing PAPER instead. I also shaded the library as shown in the Readme file.
Can you explain what you mean by "showing paper instead"? What print are you using for this?
i used foliaLib.getImplType() and foliaLib.isFolia()
and in the console i saw PAPER and FALSE
Please provide the exact folia commit hash (version) you are working with
This server is running Folia version 1.21.4-DEV-ver/1.21.5@8af1aef (2025-06-19T18:15:22Z) (Implementing API version 1.21.4-R0.1-SNAPSHOT)
Cannot reproduce on the latest release & same commit hash
i'm still having the same issue even with the new jar downloaded from paper
https://papermc.io/downloads/folia 1.21.8 build 5 (06a99a637b3bfc1a2ea1b6788869bb130704daf43215c8a69cf70bf1361f4b21)
but what i still don't get is that you use a check with the RegionizedServer class to get if it is folia, and this class is not present in the folia javadoc, in fact if i add somthing like
public static boolean isFolia() { try { Class.forName("io.papermc.paper.threadedregions.RegionizedServer"); return true; } catch (ClassNotFoundException e) { return false; } }
it returns false.
https://jd.papermc.io/folia/1.21/io/papermc/paper/threadedregions/package-summary.html
This class check was recommended by one of the Paper Team developers back in 1.19. It has worked reliably for me since then on multiple Folia servers that I worked on first-hand, including forked versions. I have very recent accounts from other developers saying that Folia is detected without issues including on 1.21.8. And you are the only case, that I know of, who has this issue so far. Idk when to say, but when I tested the exact commit hash, the lib successfully ran. There must be something difference about your execution environment? JVM distribution? Operating system? I have no idea.
If possible, could you send me a full copy of a dev server for which this check fails. I would upload it as-is within a generic Dockerized container. A zip file with everything from folia jar, config, plugins, and libraries would be best.
If possible, could you send me a full copy of a dev server for which this check fails. I would upload it as-is within a generic Dockerized container. A zip file with everything from folia jar, config, plugins, and libraries would be best.
To check i have just downloaded the latest folia build from papermc and used that lines of code. if you do the same does it work for you? or does it returns false?