java.util.concurrent.ExecutionException: java.lang.NullPointerException: The validated object is null
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_111]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_111]
at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:679) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384) [lh.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.NullPointerException: The validated object is null
at org.apache.commons.lang3.Validate.notNull(Validate.java:222) ~[minecraft_server.1.11.2.jar:?]
at org.apache.commons.lang3.Validate.notNull(Validate.java:203) ~[minecraft_server.1.11.2.jar:?]
at net.minecraft.util.NonNullList.set(SourceFile:45) ~[dd.class:?]
at net.minecraft.entity.player.InventoryPlayer.func_70299_a(InventoryPlayer.java:513) ~[aax.class:?]
at mknutils.plugin.BaublesPlugin.baublesEquip(BaublesPlugin.java:70) ~[BaublesPlugin.class:?]
at mknutils.items.baubles.ItemFeatherAmulet.func_77659_a(ItemFeatherAmulet.java:68) ~[ItemFeatherAmulet.class:?]
at net.minecraft.item.ItemStack.func_77957_a(ItemStack.java:196) ~[afj.class:?]
at net.minecraft.server.management.PlayerInteractionManager.func_187250_a(PlayerInteractionManager.java:359) ~[lz.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:709) ~[mi.class:?]
at net.minecraft.network.play.client.CPacketPlayerTryUseItem.func_148833_a(SourceFile:32) ~[jn.class:?]
at net.minecraft.network.play.client.CPacketPlayerTryUseItem.func_148833_a(SourceFile:9) ~[jn.class:?]
at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[fo$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_111]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_111]
at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
... 5 more