[20:54:44 ERROR]: [ProtocolLib] INTERNAL ERROR: Cannot compile structure. Disa bing compiler.
If this problem hasn't already been reported, please open a ticket
at https://github.com/dmulloy2/ProtocolLib/issues with the following data:
Stack Trace:
java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,in t) throws java.lang.ClassFormatError accessible: module java.base does not "open s java.lang" to unnamed module @421782e
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Ac cessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Ac cessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java: 199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at com.comphenix.protocol.reflect.compiler.StructureCompiler.generateCla ss(StructureCompiler.java:299)
at com.comphenix.protocol.reflect.compiler.StructureCompiler.compile(Str uctureCompiler.java:213)
at com.comphenix.protocol.reflect.compiler.BackgroundCompiler$2.call(Bac kgroundCompiler.java:204)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoo lExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPo olExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:831)
Dump:
Parameters:
com.comphenix.protocol.reflect.StructureModifier@2ca1d10e[
targetType=class net.minecraft.server.v1_16_R3.NBTTagCompound
target=
converter=
fieldType=interface java.util.Map
data=[public final java.util.Map net.minecraft.server.v1_16_R3.NBTTagCompo und.map]
defaultFields={}
subtypeCache={}
customConvertHandling=false
useStructureCompiler=true
]
manager:
com.comphenix.protocol.injector.PacketFilterManager@4bb4903b[
unhookTask=com.comphenix.protocol.injector.DelayedSingleTask@40b29910
packetListeners=[PacketAdapter[plugin=LibsDisguises, sending=ListeningWh itelist[priority=NORMAL, packets=[NAMED_SOUND_EFFECT[class=PacketPlayOutNamedSou ndEffect, id=81], ENTITY_STATUS[class=PacketPlayOutEntityStatus, id=26]], gameph ase=PLAYING, options=[]], receiving=EMPTY_WHITELIST], PacketAdapter[plugin=LibsD isguises, sending=ListeningWhitelist[priority=HIGH, packets=[WINDOW_ITEMS[class= PacketPlayOutWindowItems, id=19], SET_SLOT[class=PacketPlayOutSetSlot, id=21], S ET_CREATIVE_SLOT[class=PacketPlayInSetCreativeSlot, id=40], WINDOW_CLICK[class=P acketPlayInWindowClick, id=9], HELD_ITEM_SLOT[class=PacketPlayInHeldItemSlot, id =37]], gamephase=PLAYING, options=[]], receiving=ListeningWhitelist[priority=HIG H, packets=[WINDOW_ITEMS[class=PacketPlayOutWindowItems, id=19], SET_SLOT[class= PacketPlayOutSetSlot, id=21], SET_CREATIVE_SLOT[class=PacketPlayInSetCreativeSlo t, id=40], WINDOW_CLICK[class=PacketPlayInWindowClick, id=9], HELD_ITEM_SLOT[cla ss=PacketPlayInHeldItemSlot, id=37]], gamephase=PLAYING, options=[]]], PacketAda pter[plugin=LibsDisguises, sending=ListeningWhitelist[priority=HIGH, packets=[NA MED_ENTITY_SPAWN[class=PacketPlayOutNamedEntitySpawn, id=4], ENTITY_METADATA[cla ss=PacketPlayOutEntityMetadata, id=68], REL_ENTITY_MOVE_LOOK[class=PacketPlayOut RelEntityMoveLook, id=40], REL_ENTITY_MOVE[class=PacketPlayOutRelEntityMove, id= 39], ENTITY_EQUIPMENT[class=PacketPlayOutEntityEquipment, id=71], ENTITY_VELOCIT Y[class=PacketPlayOutEntityVelocity, id=70], ATTACH_ENTITY[class=PacketPlayOutAt tachEntity, id=69], ANIMATION[class=PacketPlayOutAnimation, id=5], ENTITY_HEAD_R OTATION[class=PacketPlayOutEntityHeadRotation, id=58], ENTITY_STATUS[class=Packe tPlayOutEntityStatus, id=26], ENTITY_EFFECT[class=PacketPlayOutEntityEffect, id= 89], UPDATE_ATTRIBUTES[class=PacketPlayOutUpdateAttributes, id=88], ENTITY_TELEP ORT[class=PacketPlayOutEntityTeleport, id=86], ENTITY_LOOK[class=PacketPlayOutEn tityLook, id=41]], gamephase=PLAYING, options=[]], receiving=EMPTY_WHITELIST]]
packetInjector=com.comphenix.protocol.injector.netty.ProtocolInjector$5@ 62b919a9
playerInjection=com.comphenix.protocol.injector.netty.ProtocolInjector$4 @585cd83f
inputBufferedPackets=[]
recievedListeners=com.comphenix.protocol.injector.SortedPacketListenerLi st@3706be47
sendingListeners=com.comphenix.protocol.injector.SortedPacketListenerLis t@63a8cbae
hasClosed=false
classLoader=PluginClassLoader{plugin=ProtocolLib v4.6.0, pluginEnabled=t rue, url=plugins/ProtocolLib4.6.0.jar}
reporter=com.comphenix.protocol.ProtocolLib$1@4976e223
server=CraftServer{serverName=Paper,serverVersion=git-Paper-744,minecraf tVersion=1.16.5}
library=ProtocolLib v4.6.0
asyncFilterManager=com.comphenix.protocol.async.AsyncFilterManager@75a32 a29
knowsServerPackets=true
knowsClientPackets=true
phaseLoginCount=0
phasePlayingCount=4
packetCreation=false
nettyInjector=com.comphenix.protocol.injector.netty.ProtocolInjector@1f4 c5567
pluginVerifier=com.comphenix.protocol.injector.PluginVerifier@54a05b2c
hasRecycleDistance=true
minecraftVersion=(MC: 1.16.5)
debug=false
]
Sender:
com.comphenix.protocol.reflect.compiler.BackgroundCompiler@2d59c4e2[
listeners={com.comphenix.protocol.reflect.compiler.StructureCompiler$Struc tureKey@afcc04db=[com.comphenix.protocol.reflect.compiler.BackgroundCompiler$1@4 8342264], com.comphenix.protocol.reflect.compiler.StructureCompiler$StructureKey @ad7bd490=[com.comphenix.protocol.reflect.compiler.BackgroundCompiler$1@35aea168 ]}
listenerLock=java.lang.Object@6301e5ca
compiler=com.comphenix.protocol.reflect.compiler.StructureCompiler@1c539c
enabled=false
shuttingDown=false
executor=java.util.concurrent.Executors$FinalizableDelegatedExecutorServic e@69d266f9
reporter=com.comphenix.protocol.ProtocolLib$1@4976e223
unknownPermGenBean=java.lang.Object@29372f4a
permGenBean=
disablePermGenFraction=0.65
]
Version:
ProtocolLib v4.6.0
Java Version:
16.0.1
Server:
git-Paper-744 (MC: 1.16.5)

Duplicate of #1162

This issue was resolved in build 499+.