Addressing reflections & deprecations for modern Java

[Xemorr]

Bug report for FastAsyncWorldEdit 1.15.2

[REQUIRED] FastAsyncWorldEdit Configuration Files:

Config.yml = https://hasteb.in/muqahavu.yaml
Latest log =

[15:33:02] [Server thread/INFO]: Starting minecraft server version 1.15.2
[15:33:02] [Server thread/INFO]: Loading properties
[15:33:02] [Server thread/INFO]: This server is running Paper version git-Paper-162 (MC: 1.15.2) (Implementing API version 1.15.2-R0.1-SNAPSHOT)
[15:33:03] [Server thread/INFO]: Debug logging is disabled
[15:33:03] [Server thread/INFO]: Server Ping Player Sample Count: 12
[15:33:03] [Server thread/INFO]: Using 4 threads for Netty based IO
[15:33:03] [Server thread/INFO]: Default game type: SURVIVAL
[15:33:03] [Server thread/INFO]: Generating keypair
[15:33:03] [Server thread/INFO]: Starting Minecraft server on *:25565
[15:33:03] [Server thread/INFO]: Using default channel type
[15:33:11] [Server thread/INFO]: Got request to register class com.sk89q.worldedit.bukkit.BukkitServerInterface with WorldEdit [com.sk89q.worldedit.extension.platform.PlatformManager@364beb72]
[15:33:11] [Server thread/INFO]: WEPIF: Using the Bukkit Permissions API.
[15:33:11] [Server thread/INFO]: Using com.sk89q.worldedit.bukkit.adapter.impl.FAWE_Spigot_v1_15_R2 as the Bukkit adapter
[15:33:12] [Server thread/INFO]: Ignoring invalid block minecraft:sign
[15:33:12] [Server thread/INFO]: Ignoring invalid block minecraft:wall_sign
[15:33:15] [Server thread/INFO]: [WorldEdit] Loading WorldEdit v1.15-164;5cc7a09
[15:33:15] [Server thread/INFO]: [FastAsyncWorldEdit] Loading FastAsyncWorldEdit v1.15.2
[15:33:15] [Server thread/INFO]: [ViaVersion] Loading ViaVersion v3.0.0-SNAPSHOT
[15:33:15] [Server thread/INFO]: [ViaVersion] ViaVersion 3.0.0-SNAPSHOT is now loaded, injecting!
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.12.2 -> 1.13 block mapping...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.12.2 -> 1.13 item mapping...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading new 1.13 tags...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.12.2 -> 1.13 enchantment mapping...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.12.2 -> 1.13 sound mapping...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.12.2 -> 1.13 plugin channel mappings...
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading translation mappping
[15:33:16] [Server thread/INFO]: [ViaVersion] Loading 1.13.2 -> 1.14 blockstate mapping...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.13.2 -> 1.14 block mapping...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.13.2 -> 1.14 item mapping...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.13.2 -> 1.14 sound mapping...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.14 blockstates...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.14 heightmap data...
[15:33:17] [Server thread/INFO]: [ViaVersion] Loading 1.14.4 -> 1.15 blockstate mapping...
[15:33:18] [Server thread/INFO]: [ViaVersion] Loading 1.14.4 -> 1.15 block mapping...
[15:33:18] [Server thread/INFO]: [ViaVersion] Loading 1.14.4 -> 1.15 item mapping...
[15:33:18] [Server thread/INFO]: [ViaVersion] Loading 1.14.4 -> 1.15 sound mapping...
[15:33:18] [Server thread/INFO]: [ViaVersion] Loading 1.15 -> 1.16 blockstate mapping...
[15:33:25] [Server thread/INFO]: [ViaVersion] Loading 1.15 -> 1.16 block mapping...
[15:33:25] [Server thread/INFO]: [ViaVersion] Loading 1.15 -> 1.16 item mapping...
[15:33:25] [Server thread/INFO]: [ViaVersion] Loading 1.15 -> 1.16 sound mapping...
[15:33:25] [Server thread/INFO]: [Essentials] Loading Essentials v2.17.2.43
[15:33:25] [Server thread/INFO]: [EssentialsProtect] Loading EssentialsProtect v2.17.2.43
[15:33:25] [Server thread/INFO]: [ESCombat2] Loading ESCombat2 v1.0-SNAPSHOT
[15:33:25] [Server thread/INFO]: [EssentialsSpawn] Loading EssentialsSpawn v2.17.2.43
[15:33:25] [Server thread/INFO]: [ViaBackwards] Loading ViaBackwards v3.0.0-SNAPSHOT
[15:33:25] [Server thread/INFO]: [EssentialsGeoIP] Loading EssentialsGeoIP v2.17.2.43
[15:33:25] [Server thread/INFO]: [WorldGuard] Loading WorldGuard v7.0.2-SNAPSHOT;bf2593e
[15:33:25] [Server thread/INFO]: [ViaRewind] Loading ViaRewind v1.5.0-SNAPSHOT
[15:33:25] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it
[15:33:25] [Server thread/INFO]: [ViaBackwards] Enabling ViaBackwards v3.0.0-SNAPSHOT
[15:33:25] [Server thread/INFO]: [ViaBackwards] Loading translations...
[15:33:25] [Server thread/INFO]: [ViaBackwards] Registering protocols...
[15:33:26] [Server thread/INFO]: [ViaBackwards] Loading 1.13 -> 1.12.2 mappings...
[15:33:27] [Server thread/INFO]: [ViaBackwards] Loading 1.14 -> 1.13.2 mappings...
[15:33:31] [Server thread/INFO]: [ViaBackwards] Loading 1.15 -> 1.14.4 mappings...
[15:33:37] [Server thread/INFO]: [ViaBackwards] Loading 1.16 -> 1.15.2 mappings...
[15:33:50] [Server thread/INFO]: [ViaRewind] Enabling ViaRewind v1.5.0-SNAPSHOT
[15:33:51] [Server thread/INFO]: Preparing level "world"
[15:33:51] [Server thread/INFO]: Reloading ResourceManager: Default, bukkit
[15:33:53] [Server thread/INFO]: Loaded 6 recipes
[15:33:54] [Server thread/INFO]: -------- World Settings For [world] --------
[15:33:54] [Server thread/INFO]: View Distance: 10
[15:33:54] [Server thread/INFO]: Allow Zombie Pigmen to spawn from portal blocks: true
[15:33:54] [Server thread/INFO]: Item Merge Radius: 2.5
[15:33:54] [Server thread/INFO]: Item Despawn Rate: 6000
[15:33:54] [Server thread/INFO]: Arrow Despawn Rate: 1200 Trident Respawn Rate:1200
[15:33:54] [Server thread/INFO]: Zombie Aggressive Towards Villager: true
[15:33:54] [Server thread/INFO]: Nerfing mobs spawned from spawners: false
[15:33:54] [Server thread/INFO]: Cactus Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Cane Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Melon Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Mushroom Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Pumpkin Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Sapling Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Beetroot Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Carrot Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Potato Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Wheat Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: NetherWart Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Vine Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Cocoa Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Bamboo Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: SweetBerry Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Kelp Growth Modifier: 100%
[15:33:54] [Server thread/INFO]: Mob Spawn Range: 8
[15:33:54] [Server thread/INFO]: Experience Merge Radius: 3.0
[15:33:54] [Server thread/INFO]: Custom Map Seeds:  Village: 10387312 Desert: 14357617 Igloo: 14357618 Jungle: 14357619 Swamp: 14357620 Monument: 10387313 Ocean: 14357621 Shipwreck: 165745295 Slime: 987234911
[15:33:54] [Server thread/INFO]: Tile Max Tick Time: 50ms Entity max Tick Time: 50ms
[15:33:54] [Server thread/INFO]: Hopper Transfer: 8 Hopper Check: 1 Hopper Amount: 1
[15:33:54] [Server thread/INFO]: Entity Activation Range: An 32 / Mo 32 / Ra 48 / Mi 16 / Tiv true
[15:33:54] [Server thread/INFO]: Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Other 64
[15:33:54] [Server thread/INFO]: Max TNT Explosions: 100
[15:33:54] [Server thread/INFO]: Registering commands with com.sk89q.worldedit.bukkit.BukkitServerInterface
[15:33:54] [Server thread/INFO]: Preparing start region for dimension 'world'/minecraft:overworld
[15:33:55] [Server thread/INFO]: Preparing spawn area: 0%
[15:33:55] [Server thread/INFO]: Preparing spawn area: 0%
[15:33:55] [Server thread/INFO]: Preparing spawn area: 0%
[15:33:56] [Server thread/INFO]: Preparing spawn area: 3%
[15:33:56] [Server thread/INFO]: Preparing spawn area: 4%
[15:33:56] [Server thread/INFO]: Preparing spawn area: 23%
[15:33:57] [Server thread/INFO]: Preparing spawn area: 59%
[15:33:58] [Server thread/INFO]: Preparing spawn area: 62%
[15:33:58] [Server thread/INFO]: Preparing spawn area: 97%
[15:33:58] [Server thread/INFO]: Preparing spawn area: 100%
[15:33:59] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:00] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:00] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:00] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:01] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:01] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:02] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server-Worker-1/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:06] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:07] [Server-Worker-1/INFO]: Preparing spawn area: 100%
[15:34:08] [Server-Worker-1/INFO]: Preparing spawn area: 100%
[15:34:08] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:08] [Server thread/INFO]: Preparing spawn area: 100%
[15:34:09] [Server thread/INFO]: Loaded 441 spawn chunks for world world
[15:34:09] [Server thread/INFO]: Time elapsed: 14569 ms
[15:34:09] [Server thread/INFO]: [FastAsyncWorldEdit] Enabling FastAsyncWorldEdit v1.15.2
[15:34:09] [Server thread/INFO]: [ViaVersion] Enabling ViaVersion v3.0.0-SNAPSHOT
[15:34:09] [Server thread/INFO]: [Essentials] Enabling Essentials v2.17.2.43
[15:34:09] [Server thread/INFO]: [Essentials] Attempting to convert old kits in config.yml to new kits.yml
[15:34:09] [Server thread/INFO]: [Essentials] No kits found to migrate.
[15:34:09] [Server thread/INFO]: [Essentials] Using 1.8.3+ BlockStateMeta provider as mob spawner provider.
[15:34:09] [Server thread/INFO]: [Essentials] Using 1.13+ flat spawn egg provider as spawn egg provider.
[15:34:09] [Server thread/INFO]: [Essentials] Using 1.9+ BasePotionData provider as potion meta provider.
[15:34:09] [Server thread/INFO]: [Essentials] Loaded 21019 items from items.json.
[15:34:09] [Server thread/INFO]: [Essentials] Using locale en_GB
[15:34:10] [Server thread/INFO]: [Essentials] ServerListPingEvent: Spigot iterator API
[15:34:10] [Server thread/INFO]: [Essentials] Starting Metrics. Opt-out using the global bStats config.
[15:34:10] [Server thread/INFO]: [Essentials] Using superperms-based permissions.
[15:34:10] [Server thread/INFO]: [EssentialsProtect] Enabling EssentialsProtect v2.17.2.43
[15:34:10] [Server thread/INFO]: [EssentialsProtect] Continuing to enable Protect.
[15:34:10] [Server thread/INFO]: [ESCombat2] Enabling ESCombat2 v1.0-SNAPSHOT
[15:34:10] [Server thread/WARN]: [ESCombat2] "ESCombat2 v1.0-SNAPSHOT" has registered a listener for org.bukkit.event.entity.EntityCreatePortalEvent on method "public void me.xemor.escombat2.me.xemor.escombat2.random.EndPortalBlock.blockEndPortalCreation(org.bukkit.event.entity.EntityCreatePortalEvent)", but the event is Deprecated. "Server performance will be affected"; please notify the authors [Xemor_].
[15:34:10] [Server thread/INFO]: [EssentialsSpawn] Enabling EssentialsSpawn v2.17.2.43
[15:34:10] [Server thread/INFO]: [EssentialsGeoIP] Enabling EssentialsGeoIP v2.17.2.43
[15:34:10] [Server thread/ERROR]: [EssentialsGeoIP] No license key found! Please visit https://essentialsx.cf/geoip for first time setup instructions.
[15:34:10] [Server thread/ERROR]: [EssentialsGeoIP] Failed to read GeoIP database!
java.io.FileNotFoundException: plugins\EssentialsGeoIP\GeoIP2-Country.mmdb (The system cannot find the file specified)
	at java.io.RandomAccessFile.open0(Native Method) ~[?:?]
	at java.io.RandomAccessFile.open(RandomAccessFile.java:345) ~[?:?]
	at java.io.RandomAccessFile.<init>(RandomAccessFile.java:259) ~[?:?]
	at java.io.RandomAccessFile.<init>(RandomAccessFile.java:214) ~[?:?]
	at com.maxmind.db.BufferHolder.<init>(BufferHolder.java:19) ~[?:?]
	at com.maxmind.db.Reader.<init>(Reader.java:116) ~[?:?]
	at com.maxmind.geoip2.DatabaseReader.<init>(DatabaseReader.java:66) ~[?:?]
	at com.maxmind.geoip2.DatabaseReader.<init>(DatabaseReader.java:54) ~[?:?]
	at com.maxmind.geoip2.DatabaseReader$Builder.build(DatabaseReader.java:160) ~[?:?]
	at com.earth2me.essentials.geoip.EssentialsGeoIPPlayerListener.reloadConfig(EssentialsGeoIPPlayerListener.java:162) ~[?:?]
	at com.earth2me.essentials.geoip.EssentialsGeoIPPlayerListener.<init>(EssentialsGeoIPPlayerListener.java:43) ~[?:?]
	at com.earth2me.essentials.geoip.EssentialsGeoIP.onEnable(EssentialsGeoIP.java:31) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugin(CraftServer.java:470) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugins(CraftServer.java:384) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:482) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:885) ~[patched_1.15.2.jar:git-Paper-162]
	at java.lang.Thread.run(Thread.java:834) [?:?]
[15:34:10] [Server thread/INFO]: [EssentialsGeoIP] This product includes GeoLite2 data created by MaxMind, available from http://www.maxmind.com/.
[15:34:10] [Server thread/INFO]: [WorldGuard] Enabling WorldGuard v7.0.2-SNAPSHOT;bf2593e
[15:34:11] [Server thread/INFO]: [WorldGuard] (world) TNT ignition is PERMITTED.
[15:34:11] [Server thread/INFO]: [WorldGuard] (world) Lighters are PERMITTED.
[15:34:11] [Server thread/INFO]: [WorldGuard] (world) Lava fire is PERMITTED.
[15:34:11] [Server thread/INFO]: [WorldGuard] (world) Fire spread is UNRESTRICTED.
[15:34:11] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'world'
[15:34:11] [Server thread/INFO]: [WorldGuard] Loading region data...
[15:34:13] [Server thread/INFO]: Done (22.560s)! For help, type "help"
[15:34:13] [Server thread/INFO]: Timings Reset
[15:34:13] [Server thread/WARN]: [WorldEdit] Loaded class com.sk89q.worldguard.bukkit.WorldGuardPlugin from WorldGuard v7.0.2-SNAPSHOT;bf2593e which is not a depend, softdepend or loadbefore of this plugin.
[15:34:13] [Server thread/INFO]: [ViaVersion] ViaVersion detected server version: 1.15.2(578)
[15:34:15] [Server thread/WARN]: [ViaVersion] You are running a development version, please report any bugs to GitHub.
[15:34:18] [User Authenticator #1/INFO]: UUID of player Xemor_ is bdea3203-c062-4616-93c0-e18028129ee9
[15:34:20] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to ESCombat2 v1.0-SNAPSHOT
org.apache.commons.lang.NotImplementedException: Per-Player View Distance APIs need further understanding to properly implement
	at org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer.setViewDistance(CraftPlayer.java:2005) ~[patched_1.15.2.jar:git-Paper-162]
	at me.xemor.escombat2.me.xemor.escombat2.commands.setRenderDistance.onPlayerJoin(setRenderDistance.java:30) ~[?:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor70.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.15.2.jar:git-Paper-162]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.15.2.jar:git-Paper-162]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.PlayerList.a(PlayerList.java:192) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.LoginListener.c(LoginListener.java:174) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.LoginListener.tick(LoginListener.java:65) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.NetworkManager.a(NetworkManager.java:256) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.ServerConnection.c(ServerConnection.java:139) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1269) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:430) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1112) ~[patched_1.15.2.jar:git-Paper-162]
	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:934) ~[patched_1.15.2.jar:git-Paper-162]
	at java.lang.Thread.run(Thread.java:834) [?:?]
[15:34:20] [Server thread/INFO]: Xemor_[/127.0.0.1:52030] logged in with entity id 163 at ([world]-2296.2427332117563, 102.0515307100176, 2227.9129754806067)
[15:34:29] [Server thread/INFO]: Xemor_ issued server command: /fawe version
[15:34:35] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 5266ms or 105 ticks behind
[15:35:02] [Server thread/INFO]: Xemor_ issued server command: /version
[15:36:22] [Server thread/INFO]: Xemor_ issued server command: /plugins
[15:36:32] [Server thread/INFO]: Plugins (11): ESCombat2, Essentials, EssentialsGeoIP, EssentialsProtect, EssentialsSpawn, FastAsyncWorldEdit, ViaBackwards, ViaRewind, ViaVersion, WorldEdit, WorldGuard
[15:37:59] [Server thread/INFO]: Xemor_ issued server command: /fawe debugpaste

Legacy YML = https://hasteb.in/onuturiy.yaml
[REQUIRED] FastAsyncWorldEdit Version Number:

Bukkit-Official(1.15-164;5cc7a09)
[REQUIRED] Spigot/Paper Version Number:

This server is running Paper version git-Paper-162 (MC: 1.15.2) (Implementing API version 1.15.2-R0.1-SNAPSHOT)

[REQUIRED] Description of the problem:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.boydti.fawe.util.ReflectionUtils (file:/C:/Users/samue/Desktop/Minecraft%201.15/plugins/FastAsyncWorldEdit-1.15-164(2).jar) to field java.lang.Enum.ordinal
WARNING: Please consider reporting this to the maintainers of com.boydti.fawe.util.ReflectionUtils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

This appears in console

How to replicate:

Use JRE 11

Plugins being used on the server:

[15:36:32 INFO]: Plugins (11): ESCombat2, Essentials, EssentialsGeoIP, EssentialsProtect, EssentialsSpawn, FastAsyncWorldEdit, ViaBackwards, ViaRewind, ViaVersion, WorldEdit, WorldGuard
Checklist:

• [] I included all information required in the sections above
• [] I made sure there are no duplicates of this report (Use Search)
• [] I made sure I am using an up-to-date version of FastAsyncWorldEdit for 1.15.2
• [] I made sure the bug/error is not caused by any other plugin

[CCCoderDE]

I can confirm this occurs in Java Version 14 as well. (Version Bukkit-Official 1.16-306)

[aurorasmiles]

Can't replicate anymore, assuming it is fixed

It still continues on PowerNukkit v1.3.2.0-PN-ALPHA.1 which I assume is the same as nukkit (I remember nukkit having the error too), with FastAsyncWorldEdit v19.11.13-5505943-1282-22.3.5 and DbLib v0.2.2

It still continues on spigot (This server is running CraftBukkit version git-Spigot-57bbdd8-dea4138 (MC: 1.16.3) (Implementing API version 1.16.3-R0.1-SNAPSHOT)) with FastAsyncWorldEdit v1.16-369;aed6807 and VoxelSniper v1.0.3-backward
with this error:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by protocolsupport.utils.ReflectionUtils (file:/home/pi/1.16.3%20new%20Creative/plugins/ProtocolSupport.jar) to field java.lang.invoke.MethodHandles$Lookup.IMPL_LOOKUP
WARNING: Please consider reporting this to the maintainers of protocolsupport.utils.ReflectionUtils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

The plugins are:
BukkitOpFix
FastAsyncWorldEdit-1.16-369.jar
FastAsyncVoxelSniper-flattened-1.0.3-backward
ProtocolSupportLegacyChest-1.16.2.jar
ProtocolSupport

[dordsor21]

That's not FAWE?

[Xemorr]

Sorry, what? You leave me waiting for 3/4 of a year, just to falsely conclude that it's not FAWE.

[SirYwell]

@aurorasmiles marked this issue as can't replicate almost 4 months ago. If you still encounter that issue with the latest version, feel free to provide logs. That's how it works.

[Xemorr]

I understand perfectly well how it works, and someone was able to replicate it.

[SirYwell]

This isn't ProtocolSupport, as already mentioned. If you can replicate with FAWE causing that message, we'll reopen this issue.

[Kruemmelspalter]

I also get this. Server: Purpur version git-Purpur-965 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
Logs:

System Info: Java 11 (OpenJDK 64-Bit Server VM 11.0.10+8) Host: Linux 5.10.7-3-MANJARO (amd64)
Loading libraries, please wait...
[14:59:44 INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
[14:59:44 INFO]: Reloading ResourceManager: Default, bukkit
[14:59:45 INFO]: Loaded 7 recipes
[14:59:46 INFO]: Starting minecraft server version 1.16.5
[14:59:46 INFO]: Loading properties
[14:59:46 INFO]: This server is running Purpur version git-Purpur-965 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
[14:59:46 INFO]: Debug logging is disabled
[14:59:46 INFO]: Server Ping Player Sample Count: 12
[14:59:46 INFO]: Using 4 threads for Netty based IO
[14:59:46 INFO]: Default game type: SURVIVAL
[14:59:46 INFO]: Generating keypair
[14:59:46 INFO]: Starting Minecraft server on *:25565
[14:59:46 INFO]: Using epoll channel type
[14:59:46 INFO]: Tuinity: Using libdeflate (Linux x86_64) compression from Velocity.
[14:59:46 INFO]: Tuinity: Using OpenSSL 1.1.x (Linux x86_64) cipher from Velocity.
[14:59:46 INFO]: [FastAsyncWorldEdit] Loading FastAsyncWorldEdit v1.16-581;dd65cff
[14:59:47 INFO]: Got request to register class com.sk89q.worldedit.bukkit.BukkitServerInterface with WorldEdit [com.sk89q.worldedit.extension.platform.PlatformManager@528db519]
[14:59:47 INFO]: Server permissions file permissions.yml is empty, ignoring it
[14:59:47 INFO]: [FastAsyncWorldEdit] Enabling FastAsyncWorldEdit v1.16-581;dd65cff
[14:59:47 INFO]: WEPIF: Using the Bukkit Permissions API.
[14:59:47 INFO]: Using com.sk89q.worldedit.bukkit.adapter.impl.FAWE_Spigot_v1_16_R3 as the Bukkit adapter
> WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.boydti.fawe.util.ReflectionUtils (file:/projects/MC/Server/1.16.5/Purpur/plugins/FastAsyncWorldEdit-1.16-581.jar) to field java.lang.Enum.ordinal
WARNING: Please consider reporting this to the maintainers of com.boydti.fawe.util.ReflectionUtils
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[14:59:47 INFO]: Ignoring invalid block minecraft:sign
[14:59:47 INFO]: Ignoring invalid block minecraft:wall_sign
[14:59:48 INFO]: Preparing level "world"
[14:59:48 INFO]: Registering commands with com.sk89q.worldedit.bukkit.BukkitServerInterface
[14:59:48 INFO]: Preparing start region for dimension minecraft:overworld
[14:59:48 INFO]: Loaded 0 spawn chunks for world world
[14:59:48 INFO]: Preparing spawn area: 0%
[14:59:48 INFO]: Preparing spawn area: 3%
[14:59:49 INFO]: Time elapsed: 615 ms
[14:59:49 INFO]: Preparing start region for dimension minecraft:the_nether
[14:59:49 INFO]: Loaded 0 spawn chunks for world world_nether
[14:59:49 INFO]: Preparing spawn area: 0%
[14:59:49 INFO]: Time elapsed: 122 ms
[14:59:49 INFO]: Preparing start region for dimension minecraft:the_end
[14:59:49 INFO]: Loaded 0 spawn chunks for world world_the_end
[14:59:49 INFO]: Preparing spawn area: 0%
[14:59:49 INFO]: Time elapsed: 442 ms
[14:59:49 INFO]: Running delayed init tasks
[14:59:49 INFO]: Done (3.584s)! For help, type "help"
[14:59:49 INFO]: Timings Reset

[SirYwell]

As a note: To resolve this, we need to rework the PropertyKey enum.