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java.lang.NullPointerException: 	at net.doubledoordev.insidertrading.util.TradeWrapper.matches(TradeWrapper.java:25)	at net.doubledoordev.insidertrading.util.TradeManipulation.apply(TradeManipulation.java:33)	at net.doubledoordev.insidertrading.InsiderTrading.handle(InsiderTrading.java:120)	at net.doubledoordev.insidertrading.asm.Hooks.manipulate(Hooks.java:23)	at net.minecraft.entity.passive.EntityVillager.func_70950_c(EntityVillager.java:543)	at net.minecraft.entity.passive.EntityVillager.func_70934_b(EntityVillager.java:401)	at net.minecraft.entity.player.EntityPlayerMP.func_71030_a(EntityPlayerMP.java:716)	at net.minecraft.entity.passive.EntityVillager.func_70085_c(EntityVillager.java:188)	at net.minecraft.entity.EntityLiving.func_130002_c(EntityLiving.java:1032)	at net.minecraft.entity.player.EntityPlayer.func_70998_m(EntityPlayer.java:1126)	at net.minecraft.network.NetHandlerPlayServer.func_147340_a(NetHandlerPlayServer.java:810)	at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:55)	at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:10)	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:396)	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)