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javax.ejb.EJBException: java.lang.NullPointerException
java.lang.NullPointerException: 	at net.minecraft.server.v1_8_R3.ContainerEnchantTable.a(ContainerEnchantTable.java:111)	at net.minecraft.server.v1_8_R3.ContainerEnchantTable$1.update(ContainerEnchantTable.java:27)	at net.minecraft.server.v1_8_R3.InventorySubcontainer.setItem(InventorySubcontainer.java:152)	at net.minecraft.server.v1_8_R3.Slot.set(Slot.java:55)	at net.minecraft.server.v1_8_R3.ContainerEnchantTable.b(ContainerEnchantTable.java:342)	at net.minecraft.server.v1_8_R3.Container.clickItem(Container.java:253)	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1697)	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:31)	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:9)	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:10)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44)	at net.minecraft.server.v1_8_R3.MinecraftServer.processNetworkQueue(MinecraftServer.java:117)	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:795)	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:381)	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:730)	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:633)	at java.lang.Thread.run(Thread.java:745)