[suggestion] Add support for folia

[cgw2023]

What steps will reproduce the issue?

1. put plugin into plugins folder

What was supposed to happen?

plugin to be load

What happened instead?

fail to load plugin

What version of TimeIsMoney are you using?

v1.9.6.22

What Spigot version are you using? Paste the output of /version below.

git-Folia-"23b6f9e" (MC: 1.20)

What plugins do you have installed? Paste the output of /plugins below.

[17:03:36 INFO]: Server Plugins (4): [17:03:36 INFO]: Bukkit Plugins: [17:03:36 INFO]: - AnnouncerPlus, Essentials, TimeIsMoney, Vault

Are any errors related to TimeIsMoney in your console or logs? If so, paste below.

[17:01:34 ERROR]: Error occurred while enabling TimeIsMoney v1.9.6.22 (Is it up to date?)
java.lang.UnsupportedOperationException: null
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.handle(CraftScheduler.java:533) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:233) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:209) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at de.Linus122.TimeIsMoney.Main.startPlaytimeWatcher(Main.java:168) ~[TimeIsMoney-1.9.6.22.jar:?]
        at de.Linus122.TimeIsMoney.Main.onEnable(Main.java:138) ~[TimeIsMoney-1.9.6.22.jar:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:281) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:189) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServer.java:638) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServer.java:549) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:679) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:463) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:308) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1188) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:346) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]
[17:01:34 INFO]: [TimeIsMoney] Disabling TimeIsMoney v1.9.6.22
[17:01:34 ERROR]: Error occurred (in the plugin loader) while disabling TimeIsMoney v1.9.6.22 (Is it up to date?)
java.lang.NullPointerException: Cannot invoke "org.bukkit.scheduler.BukkitTask.cancel()" because "this.playtimeWatcherTask" is null
        at de.Linus122.TimeIsMoney.Main.onDisable(Main.java:194) ~[TimeIsMoney-1.9.6.22.jar:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:283) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.disablePlugin(PaperPluginInstanceManager.java:224) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.disablePlugin(PaperPluginManagerImpl.java:109) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:537) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:193) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServer.java:638) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServer.java:549) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:679) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:463) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:308) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1188) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:346) ~[folia-1.20.1.jar:git-Folia-"fa018cc"]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]

Any additional information that you would like to provide that may be relevant to the issue?

[mastercake10]

I have no idea how Folia works, seems to be a bit tricky to make the plugin work on Folia, Paper and Spigot at the same time. I don't understand why a simple scheduler wouldn't work on Folia since its just a global scheduler. Using their new Bukkit#getAsyncScheduler thingy (found it on their discord) requires the spigot api to be replaced with folia's api causing more conflicts in the rest of the code base.

I'll leave this open in case someone is familiar with Folia and is willing to solve this.

[mastercake10]

fixed in #113