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    Thrown to indicate that a method has been passed an illegal or inappropriate argument. Make sure your getter and setter methods have the same return/parameter types (that is, String for String, Integer for Integer).

Solutions on the web

via Stack Overflow by Kaelinator
, 1 year ago
Can not set final com.mojang.authlib.GameProfile field net.minecraft.server.v1_8_R3.EntityHuman.bH to java.lang.Class
via Stack Overflow by Scott Barnes
, 2 years ago
Can not set java.util.Map field RenderManager.entityRenderMap to java.util.HashMap
via Stack Overflow by Lena Bru
, 2 years ago
Can not set int field com.database.User.userID to java.lang.String
via Stack Overflow by elect
, 11 months ago
Can not set final int field uno.caps.Caps$Version.MINOR_VERSION to java.lang.reflect.Field
via blogspot.com by Unknown author, 2 years ago
Can not set java.lang.Long field com.test.myproject.domain.entity.RoleEntity.id to java.lang.Long
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)