flowererror

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 2/18/13 7:05 AM
Description: Exception while updating neighbours

java.lang.StackOverflowError
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at net.minecraft.server.v1_4_R1.World.m(World.java:485)
	at net.minecraft.server.v1_4_R1.World.applyPhysics(World.java:456)
	at net.minecraft.server.v1_4_R1.World.update(World.java:422)
	at net.minecraft.server.v1_4_R1.World.setTypeId(World.java:399)
	at net.minecraft.server.v1_4_R1.BlockFlower.c(SourceFile:47)
	at net.minecraft.server.v1_4_R1.BlockFlower.doPhysics(SourceFile:36)
	at net.minecraft.server.v1_4_R1.World.m(World.java:483)
	at net.minecraft.server.v1_4_R1.World.applyPhysics(World.java:456)
	at net.minecraft.server.v1_4_R1.World.update(World.java:422)
	at net.minecraft.server.v1_4_R1.World.setTypeId(World.java:399)
	at net.minecraft.server.v1_4_R1.BlockFlower.c(SourceFile:47)
	at net.minecraft.server.v1_4_R1.BlockFlower.doPhysics(SourceFile:36)
	at net.minecraft.server.v1_4_R1.World.m(World.java:483)
	at net.minecraft.server.v1_4_R1.World.applyPhysics(World.java:456)
	at net.minecraft.server.v1_4_R1.World.update(World.java:422)
	at net.minecraft.server.v1_4_R1.World.setTypeId(World.java:399)
	at net.minecraft.server.v1_4_R1.BlockFlower.c(SourceFile:47)
	at net.minecraft.server.v1_4_R1.BlockFlower.doPhysics(SourceFile:36)