2012-02-12 18:15:23 [SEVERE] Could not pass event org.bukkit.event.player.PlayerInteractEvent to ChainBrewing
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1026)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:57)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:453)
	at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:187)
	at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:157)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:570)
	at net.minecraft.server.Packet15Place.handle(SourceFile:39)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:100)
	at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:537)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:435)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1024)
	... 12 more
Caused by: java.lang.NullPointerException
	at fr.tobast.bukkit.chainbrewing.PlacementListener.onPlayerInteractEvent(PlacementListener.java:30)
	... 16 more