Bottle o'Enchanting makes the server turn off

Every time you use a bottle o'enchanting, the server gets laggy and eventually turns off.
Log:

Code:

01.03 18:05:08 [Server] INFO    at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:447)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:540)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.World.tickEntities(World.java:1149)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.World.playerJoinedWorld(World.java:1242)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:106)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.World.entityJoinedWorld(World.java:1260)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.EntityProjectile.G_(EntityProjectile.java:159)
01.03 18:05:08 [Server] INFO    at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1209)
01.03 18:05:08 [Server] INFO    at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:137)
01.03 18:05:08 [Server] INFO java.lang.IllegalArgumentException: Unknown entity
01.03 18:05:08 [Server] SEVERE Unexpected exception
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:447)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:540)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.World.tickEntities(World.java:1149)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.World.playerJoinedWorld(World.java:1242)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:106)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.World.entityJoinedWorld(World.java:1260)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.EntityProjectile.G_(EntityProjectile.java:159)
01.03 18:05:08 [Server] SEVERE    at net.minecraft.server.Entity.getBukkitEntity(Entity.java:1209)
01.03 18:05:08 [Server] SEVERE    at org.bukkit.craftbukkit.entity.CraftEntity.getEntity(CraftEntity.java:137)
01.03 18:05:08 [Server] SEVERE java.lang.IllegalArgumentException: Unknown entity

 

Unknown entity, apparently.

I'm guessing the server doesn't recognize it.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I'm getting this same error.

 

Per craftbukket twitter this is a known bug.

EvilSeph ‏ EvilSeph

We're aware of the potion issues with @CraftBukkit 1.2.2 dev build and are working on it, thanks!