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java.lang.NullPointerException: 	at net.minecraft.item.ItemBlock.func_180614_a(ItemBlock.java:49)	at mcjty.lib.compat.CompatItemBlock.clOnItemUse(CompatItemBlock.java:39)	at mcjty.lib.compat.CompatItemBlock.func_180614_a(CompatItemBlock.java:35)	at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:780)	at net.minecraft.item.ItemStack.func_179546_a(ItemStack.java:144)	at li.cil.oc.server.agent.Player.li$cil$oc$server$agent$Player$$tryPlaceBlockWhileHandlingFunnySpecialCases(Player.scala:475)	at li.cil.oc.server.agent.Player$$anonfun$placeBlock$1.apply(Player.scala:292)	at li.cil.oc.server.agent.Player$$anonfun$placeBlock$1.apply(Player.scala:287)	at li.cil.oc.server.agent.Player.callUsingItemInSlot(Player.scala:438)	at li.cil.oc.server.agent.Player.placeBlock(Player.scala:287)	at li.cil.oc.server.component.Agent$$anonfun$place$1.apply(Agent.scala:258)	at li.cil.oc.server.component.Agent$$anonfun$place$1.apply(Agent.scala:252)	at scala.collection.immutable.List.foreach(List.scala:383)	at li.cil.oc.server.component.Agent$class.place(Agent.scala:252)	at li.cil.oc.server.component.Drone.place(Drone.scala:27)	at generated.li.cil.oc.CallWrapper_li_cil_oc_server_component_Drone_place.call(Unknown Source)	at li.cil.oc.server.machine.Callbacks$ComponentCallback.apply(Callbacks.scala:123)	at li.cil.oc.server.network.Component$class.invoke(Component.scala:112)	at li.cil.oc.server.network.Network$ComponentConnectorBuilder$$anon$1.invoke(Network.scala:623)	at li.cil.oc.server.machine.Machine.invoke(Machine.scala:358)	at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)	at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5$$anonfun$apply$6.apply(ComponentAPI.scala:78)	at li.cil.oc.server.machine.luac.NativeLuaArchitecture.invoke(NativeLuaArchitecture.scala:55)	at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:78)	at li.cil.oc.server.machine.luac.ComponentAPI$$anonfun$initialize$5.apply(ComponentAPI.scala:74)	at li.cil.oc.util.ExtendedLuaState$ExtendedLuaState$$anon$1.invoke(ExtendedLuaState.scala:24)	at li.cil.repack.com.naef.jnlua.LuaState.lua_pcall(Native Method)	at li.cil.repack.com.naef.jnlua.LuaState.call(LuaState.java:677)	at li.cil.oc.server.machine.luac.NativeLuaArchitecture.runSynchronized(NativeLuaArchitecture.scala:177)	at li.cil.oc.server.machine.Machine.update(Machine.scala:562)	at li.cil.oc.common.entity.Drone.func_70071_h_(Drone.scala:357)	at net.minecraft.world.World.func_72866_a(World.java:1964)	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:839)	at net.minecraft.world.World.func_72870_g(World.java:1934)	at net.minecraft.world.World.func_72939_s(World.java:1750)	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:620)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)	at java.lang.Thread.run(Thread.java:745)