---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 08:53 04/07/13
Description: Ticking player

java.lang.IllegalArgumentException: Modifier name cannot be empty
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at oq.<init>(SourceFile:31)
	at tm.a(SourceFile:94)
	at xz.D(SourceFile:580)
	at oc.l_(SourceFile:1159)
	at ua.l_(SourceFile:203)
	at js.h(SourceFile:180)
	at jx.a(SourceFile:205)
	at et.a(SourceFile:136)
	at cm.b(SourceFile:64)
	at jx.d(SourceFile:59)
	at ka.b(SourceFile:37)
	at bkr.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:488)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bko.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at hf.run(SourceFile:582)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at oq.<init>(SourceFile:31)
	at tm.a(SourceFile:94)
	at xz.D(SourceFile:580)
	at oc.l_(SourceFile:1159)
	at ua.l_(SourceFile:203)

-- Player being ticked --
Details:
	Entity Type: null (js)
	Entity ID: 287
	Entity Name: Potato_Scientist
	Entity's Exact location: 96.68, 64.00, 315.54
	Entity's Block location: World: (96,64,315), Chunk: (at 0,4,11 in 6,19; contains blocks 96,0,304 to 111,255,319), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: 0.00, -0.08, 0.00
Stacktrace:
	at js.h(SourceFile:180)
	at jx.a(SourceFile:205)
	at et.a(SourceFile:136)
	at cm.b(SourceFile:64)
	at jx.d(SourceFile:59)

-- Ticking connection --
Details:
	Connection: jx@dfd02e
Stacktrace:
	at ka.b(SourceFile:37)
	at bkr.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:488)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bko.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at hf.run(SourceFile:582)

-- System Details --
Details:
	Minecraft Version: 1.6.1
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 105057976 bytes (100 MB) / 186494976 bytes (177 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 2524 (141344 bytes; 0 MB) allocated, 2524 (141344 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 542 (30352 bytes; 0 MB) allocated, 542 (30352 bytes; 0 MB) used
	Player Count: 1 / 8; [js['Potato_Scientist'/287, l='Kingdom Rush', x=96.68, y=64.00, z=315.54]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.