Bukkit

Please give us a description of the problem:
problems with mcpc+ ro.4 1.7.2

What steps will reproduce the problem (What steps cause the problem)?
1.  server error but plugin working
2.
3.

What version of NPCWarehouse are you using (If it is from the Jenkins server, please include the Build Number)?
1.1.2

What version of Bukkit are you using?
Mcpc+ro.4 1.7.2

Do you have an error log of what happened?
[11:29:50 INFO]: [NPCWarehouse] Enabling NPCWarehouse v1.1.2
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[11:29:50 INFO]: NPCWarehouse v1.1.2 by jeremytrains
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[11:29:50 INFO]: [NPCWarehouse] Loading Config File...
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[11:29:50 INFO]: [NPCWarehouse] Checking for updates...
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[11:29:51 INFO]: [NPCWarehouse] Plugin is up to date
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[11:29:51 INFO]: [NPCWarehouse] Initiating NPC Handlers...
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[11:29:52 WARN]: java.lang.NoSuchFieldException: c
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[11:29:52 WARN]:        at java.lang.Class.getDeclaredField(Class.java:1948)
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[11:29:52 WARN]:        at net.npcwarehouse.util.ReflectUtil.getField(ReflectUtil.java:12)
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[11:29:52 WARN]:        at net.npcwarehouse.managers.NPCManager.registerEntityClass(NPCManager.java:147)
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[11:29:52 WARN]:        at net.npcwarehouse.managers.HorseNPCManager.<init>(HorseNPCManager.java:22)
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[11:29:52 WARN]:        at net.npcwarehouse.NPCWarehouse.onEnable(NPCWarehouse.java:157)
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[11:29:52 WARN]:        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250)
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[11:29:52 WARN]:        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:360)
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[11:29:52 WARN]:        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:390)
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[11:29:52 WARN]:        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:387)
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[11:29:52 WARN]:        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:323)
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[11:29:52 WARN]:        at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:500)
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[11:29:52 WARN]:        at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:476)
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[11:29:52 WARN]:        at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:419)
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[11:29:52 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:306)
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[11:29:52 WARN]:        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:601)
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[11:29:52 WARN]:        at java.lang.Thread.run(Thread.java:744)
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[11:29:52 ERROR]: Error occurred while enabling NPCWarehouse v1.1.2 (Is it up to date?)
java.lang.NullPointerException
        at net.npcwarehouse.managers.NPCManager.registerEntityClass(NPCManager.java:147) ~[?:?]
        at net.npcwarehouse.managers.HorseNPCManager.<init>(HorseNPCManager.java:22) ~[?:?]
        at net.npcwarehouse.NPCWarehouse.onEnable(NPCWarehouse.java:157) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[JavaPlugin.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.53]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:360) [JavaPluginLoader.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.53]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:390) [SimplePluginManager.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.53]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:387) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.53]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:323) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.53]
        at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:500) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:476) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:419) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:306) [lj.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:601) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:744) [?:1.7.0_55]

Please provide any additional information below.