java.lang.IllegalArgumentException

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    • java.lang.IllegalArgumentException: Can not set final com.mojang.authlib.GameProfile field net.minecraft.server.v1_8_R3.EntityHuman.bH to java.lang.Class at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.set(Unknown Source) at java.lang.reflect.Field.set(Unknown Source) at yt.Kaelinator.commands.Rename.disguisePlayer(Rename.java:117) at yt.Kaelinator.commands.Rename.onCommand(Rename.java:70) at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140) at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:620) at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1106) at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:966) at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(SourceFile:37) at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(SourceFile:9) at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:673) at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335) at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:629) at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:537)

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