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java.util.ConcurrentModificationException: 	at java.util.HashMap$HashIterator.nextNode(Unknown Source)	at java.util.HashMap$ValueIterator.next(Unknown Source)	at cn.lambdalib.util.datapart.EntityData.tick(EntityData.java:209)	at cn.lambdalib.util.datapart.EntityData.access$000(EntityData.java:34)	at cn.lambdalib.util.datapart.EntityData$EventListener.onLivingUpdate(EntityData.java:223)	at cpw.mods.fml.common.eventhandler.ASMEventHandler_132_EventListener_onLivingUpdate_LivingUpdateEvent.invoke(.dynamic)	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)	at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:287)	at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1560)	at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:288)	at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:295)	at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:303)	at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137)	at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:8)	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)