java.lang.IllegalArgumentException: Modifier name cannot be empty
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at os.<init>(SourceFile:31)
	at to.a(SourceFile:94)
	at yd.D(SourceFile:580)
	at yd.a(SourceFile:471)
	at awv.a(SourceFile:188)
	at awv.a(SourceFile:168)

---- Minecraft Crash Report ----
// I feel sad now :(

Time: 10/21/13 2:21 PM
Description: Rendering screen

java.lang.IllegalArgumentException: Modifier name cannot be empty
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at os.<init>(SourceFile:31)
	at to.a(SourceFile:94)
	at yd.D(SourceFile:580)
	at yd.a(SourceFile:471)
	at awv.a(SourceFile:188)
	at awv.a(SourceFile:168)
	at bfb.b(SourceFile:718)
	at ats.S(SourceFile:686)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


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 os.<init>(SourceFile:31)
	at to.a(SourceFile:94)
	at yd.D(SourceFile:580)
	at yd.a(SourceFile:471)
	at awv.a(SourceFile:188)
	at awv.a(SourceFile:168)

-- Screen render details --
Details:
	Screen name: axg
	Mouse location: Scaled: (264, 89). Absolute: (529, 496)
	Screen size: Scaled: (683, 338). Absolute: (1366, 675). Scale factor of 2

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdf['speedster4006'/425, l='MpServer', x=62.21, y=66.62, z=-204.95]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (70,83,-198), Chunk: (at 6,5,10 in 4,-13; contains blocks 64,0,-208 to 79,255,-193), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 235422 game time, 289038 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 220 total; [ok['Painting'/284, l='MpServer', x=86.50, y=61.50, z=-117.94], ok['Painting'/270, l='MpServer', x=87.00, y=58.50, z=-126.06], ok['Painting'/286, l='MpServer', x=86.94, y=62.50, z=-114.50], ok['Painting'/285, l='MpServer', x=86.00, y=62.50, z=-117.94], ok['Painting'/280, l='MpServer', x=82.50, y=61.50, z=-113.06], ok['Painting'/287, l='MpServer', x=86.94, y=62.50, z=-116.00], ok['Painting'/282, l='MpServer', x=80.50, y=61.50, z=-113.06], ok['Painting'/281, l='MpServer', x=81.50, y=61.50, z=-113.06], ok['Painting'/201, l='MpServer', x=79.50, y=58.50, z=-126.06], ok['Painting'/200, l='MpServer', x=76.06, y=62.50, z=-114.50], ok['Painting'/207, l='MpServer', x=77.50, y=62.50, z=-114.06], ok['Painting'/206, l='MpServer', x=79.50, y=62.50, z=-120.94], ok['Painting'/205, l='MpServer', x=78.00, y=62.50, z=-122.06], ok['Painting'/204, l='MpServer', x=77.50, y=62.50, z=-120.94], ok['Painting'/271, l='MpServer', x=85.00, y=62.00, z=-119.06], ok['Painting'/269, l='MpServer', x=83.00, y=58.50, z=-126.06], ok['Painting'/209, l='MpServer', x=79.00, y=62.00, z=-117.94], ok['Painting'/208, l='MpServer', x=78.50, y=62.50, z=-114.06], ok['Painting'/198, l='MpServer', x=76.06, y=62.50, z=-116.50], ok['Painting'/199, l='MpServer', x=76.06, y=62.50, z=-115.50], ok['Painting'/197, l='MpServer', x=76.50, y=62.50, z=-117.94], ok['Painting'/202, l='MpServer', x=79.00, y=62.50, z=-123.94], ok['Painting'/203, l='MpServer', x=78.00, y=62.00, z=-119.06], ok['Painting'/264, l='MpServer', x=83.06, y=62.50, z=-131.00], ok['Painting'/265, l='MpServer', x=84.50, y=62.00, z=-131.94], ok['Painting'/186, l='MpServer', x=76.50, y=62.50, z=-134.06], ok['Painting'/260, l='MpServer', x=84.00, y=58.50, z=-133.94], ok['Painting'/261, l='MpServer', x=80.00, y=58.50, z=-133.94], ok['Painting'/266, l='MpServer', x=87.50, y=58.50, z=-133.94], ok['Painting'/188, l='MpServer', x=78.00, y=62.00, z=-140.94], ok['Painting'/189, l='MpServer', x=78.00, y=62.50, z=-134.06], ok['Painting'/193, l='MpServer', x=79.94, y=62.50, z=-131.50], ok['Painting'/187, l='MpServer', x=78.06, y=57.50, z=-142.00], ok['Painting'/185, l='MpServer', x=76.50, y=58.50, z=-133.94], ok['Painting'/190, l='MpServer', x=77.50, y=61.50, z=-134.06], ok['Painting'/191, l='MpServer', x=78.00, y=62.50, z=-128.06], ok['Painting'/275, l='MpServer', x=81.50, y=62.50, z=-114.06], ok['Painting'/192, l='MpServer', x=79.94, y=62.50, z=-129.50], ok['Painting'/194, l='MpServer', x=79.00, y=62.50, z=-132.94], ok['Painting'/277, l='MpServer', x=82.50, y=62.50, z=-114.06], ok['Painting'/278, l='MpServer', x=84.00, y=62.50, z=-114.06], ok['Painting'/283, l='MpServer', x=82.00, y=62.50, z=-117.94], ok['Painting'/276, l='MpServer', x=80.00, y=62.50, z=-114.06], ok['Painting'/273, l='MpServer', x=86.50, y=62.00, z=-122.94], ok['Painting'/274, l='MpServer', x=84.00, y=62.00, z=-117.94], ok['Painting'/279, l='MpServer', x=85.50, y=62.50, z=-114.06], ok['Painting'/272, l='MpServer', x=84.50, y=62.50, z=-122.94], ry['Sheep'/118, l='MpServer', x=-9.47, y=74.00, z=-268.38], rq['Cow'/117, l='MpServer', x=-2.50, y=75.00, z=-267.50], tq['Skeleton'/127, l='MpServer', x=24.50, y=74.00, z=-164.50], tq['Skeleton'/126, l='MpServer', x=21.50, y=74.00, z=-165.50], tq['Skeleton'/125, l='MpServer', x=31.31, y=74.00, z=-239.31], tq['Skeleton'/121, l='MpServer', x=-7.63, y=74.00, z=-128.22], tq['Skeleton'/120, l='MpServer', x=-6.69, y=74.00, z=-127.84], ok['Painting'/141, l='MpServer', x=59.94, y=92.00, z=-196.00], ok['Painting'/143, l='MpServer', x=61.50, y=66.50, z=-174.94], ok['Painting'/142, l='MpServer', x=59.50, y=66.50, z=-174.94], tv['Zombie'/128, l='MpServer', x=21.50, y=74.00, z=-160.50], te['Creeper'/133, l='MpServer', x=35.50, y=74.00, z=-238.50], tq['Skeleton'/132, l='MpServer', x=36.44, y=74.00, z=-243.09], tq['Skeleton'/135, l='MpServer', x=35.50, y=74.00, z=-237.50], tq['Skeleton'/134, l='MpServer', x=27.88, y=75.00, z=-242.50], tv['Zombie'/158, l='MpServer', x=73.50, y=67.00, z=-269.50], ry['Sheep'/159, l='MpServer', x=64.53, y=84.00, z=-257.38], ok['Painting'/144, l='MpServer', x=63.50, y=66.50, z=-174.94], rn['Bat'/171, l='MpServer', x=73.75, y=49.10, z=-229.41], rn['Bat'/170, l='MpServer', x=72.75, y=50.10, z=-229.50], rn['Bat'/169, l='MpServer', x=76.75, y=52.10, z=-225.44], ok['Painting'/168, l='MpServer', x=72.06, y=54.50, z=-227.50], rn['Bat'/175, l='MpServer', x=74.75, y=62.10, z=-223.31], ok['Painting'/174, l='MpServer', x=72.06, y=54.50, z=-223.00], te['Creeper'/173, l='MpServer', x=73.50, y=52.00, z=-233.50], tv['Zombie'/172, l='MpServer', x=71.50, y=61.00, z=-226.91], tv['Zombie'/163, l='MpServer', x=72.50, y=64.00, z=-252.50], te['Creeper'/162, l='MpServer', x=76.50, y=50.00, z=-242.50], te['Creeper'/161, l='MpServer', x=73.50, y=52.00, z=-240.50], te['Creeper'/160, l='MpServer', x=73.50, y=48.00, z=-246.06], ok['Painting'/167, l='MpServer', x=72.06, y=54.50, z=-231.50], tq['Skeleton'/166, l='MpServer', x=72.50, y=65.00, z=-247.88], tq['Skeleton'/165, l='MpServer', x=77.47, y=64.00, z=-249.84], te['Creeper'/164, l='MpServer', x=71.72, y=64.00, z=-250.38], ok['Painting'/186, l='MpServer', x=76.50, y=62.50, z=-134.06], ok['Painting'/187, l='MpServer', x=78.06, y=57.50, z=-142.00], tv['Zombie'/184, l='MpServer', x=71.50, y=61.00, z=-172.97], ok['Painting'/185, l='MpServer', x=76.50, y=58.50, z=-133.94], ok['Painting'/190, l='MpServer', x=77.50, y=61.50, z=-134.06], ok['Painting'/191, l='MpServer', x=78.00, y=62.50, z=-128.06], ok['Painting'/188, l='MpServer', x=78.00, y=62.00, z=-140.94], ok['Painting'/189, l='MpServer', x=78.00, y=62.50, z=-134.06], sr['item.item.netherStar'/178, l='MpServer', x=71.41, y=65.13, z=-204.03], rn['Bat'/179, l='MpServer', x=76.31, y=50.10, z=-177.53], rn['Bat'/176, l='MpServer', x=75.94, y=53.10, z=-223.25], te['Creeper'/177, l='MpServer', x=70.88, y=48.00, z=-204.13], ok['Painting'/182, l='MpServer', x=78.94, y=54.00, z=-169.00], ok['Painting'/183, l='MpServer', x=78.94, y=54.50, z=-164.00], tq['Skeleton'/180, l='MpServer', x=71.56, y=61.00, z=-182.69], ok['Painting'/181, l='MpServer', x=75.00, y=54.50, z=-163.06], ok['Painting'/205, l='MpServer', x=78.00, y=62.50, z=-122.06], ok['Painting'/204, l='MpServer', x=77.50, y=62.50, z=-120.94], ok['Painting'/207, l='MpServer', x=77.50, y=62.50, z=-114.06], ok['Painting'/206, l='MpServer', x=79.50, y=62.50, z=-120.94], ok['Painting'/201, l='MpServer', x=79.50, y=58.50, z=-126.06], ok['Painting'/200, l='MpServer', x=76.06, y=62.50, z=-114.50], ok['Painting'/203, l='MpServer', x=78.00, y=62.00, z=-119.06], ok['Painting'/202, l='MpServer', x=79.00, y=62.50, z=-123.94], ok['Painting'/197, l='MpServer', x=76.50, y=62.50, z=-117.94], ok['Painting'/199, l='MpServer', x=76.06, y=62.50, z=-115.50], ok['Painting'/198, l='MpServer', x=76.06, y=62.50, z=-116.50], ok['Painting'/193, l='MpServer', x=79.94, y=62.50, z=-131.50], ok['Painting'/192, l='MpServer', x=79.94, y=62.50, z=-129.50], ok['Painting'/194, l='MpServer', x=79.00, y=62.50, z=-132.94], tv['Zombie'/220, l='MpServer', x=81.31, y=56.00, z=-243.19], ok['Painting'/221, l='MpServer', x=90.94, y=54.50, z=-229.50], te['Creeper'/222, l='MpServer', x=85.50, y=61.00, z=-237.97], tv['Zombie'/223, l='MpServer', x=84.50, y=53.00, z=-239.50], tv['Zombie'/219, l='MpServer', x=82.28, y=56.00, z=-242.31], ok['Painting'/208, l='MpServer', x=78.50, y=62.50, z=-114.06], ok['Painting'/209, l='MpServer', x=79.00, y=62.00, z=-117.94], rn['Bat'/239, l='MpServer', x=82.43, y=54.02, z=-187.82], te['Creeper'/238, l='MpServer', x=91.28, y=48.00, z=-179.88], tq['Skeleton'/237, l='MpServer', x=91.69, y=48.00, z=-180.94], te['Creeper'/236, l='MpServer', x=91.34, y=48.00, z=-191.06], te['Creeper'/235, l='MpServer', x=91.56, y=48.00, z=-186.03], te['Creeper'/234, l='MpServer', x=91.22, y=48.00, z=-186.84], tv['Zombie'/233, l='MpServer', x=86.56, y=56.00, z=-193.56], tq['Skeleton'/232, l='MpServer', x=91.34, y=59.00, z=-185.75], tq['Skeleton'/231, l='MpServer', x=91.50, y=59.00, z=-192.21], rn['Bat'/230, l='MpServer', x=89.25, y=54.10, z=-211.25], rn['Bat'/229, l='MpServer', x=80.28, y=58.10, z=-223.94], ok['Painting'/228, l='MpServer', x=90.94, y=54.50, z=-214.00], ok['Painting'/227, l='MpServer', x=90.94, y=54.50, z=-217.50], ok['Painting'/226, l='MpServer', x=90.94, y=54.50, z=-220.00], ok['Painting'/225, l='MpServer', x=88.06, y=54.50, z=-223.50], te['Creeper'/224, l='MpServer', x=86.50, y=49.50, z=-235.94], ok['Painting'/254, l='MpServer', x=85.00, y=62.00, z=-140.94], ok['Painting'/255, l='MpServer', x=83.06, y=62.50, z=-140.00], tv['Zombie'/252, l='MpServer', x=90.50, y=48.00, z=-169.97], ok['Painting'/253, l='MpServer', x=81.00, y=92.00, z=-174.94], tv['Zombie'/250, l='MpServer', x=90.56, y=48.00, z=-173.44], tv['Zombie'/251, l='MpServer', x=90.41, y=48.00, z=-165.25], tv['Zombie'/248, l='MpServer', x=82.50, y=52.00, z=-161.50], tv['Zombie'/249, l='MpServer', x=81.50, y=52.00, z=-161.50], ok['Painting'/246, l='MpServer', x=84.06, y=54.00, z=-165.00], ok['Painting'/247, l='MpServer', x=86.00, y=54.50, z=-163.06], ok['Painting'/244, l='MpServer', x=86.00, y=54.50, z=-172.94], ok['Painting'/245, l='MpServer', x=84.06, y=54.50, z=-170.00], ok['Painting'/242, l='MpServer', x=84.94, y=66.50, z=-183.50], ok['Painting'/243, l='MpServer', x=84.94, y=66.50, z=-181.50], ok['Painting'/240, l='MpServer', x=84.94, y=66.50, z=-187.50], ok['Painting'/241, l='MpServer', x=84.94, y=66.50, z=-185.50], ok['Painting'/275, l='MpServer', x=81.50, y=62.50, z=-114.06], ok['Painting'/274, l='MpServer', x=84.00, y=62.00, z=-117.94], ok['Painting'/273, l='MpServer', x=86.50, y=62.00, z=-122.94], ok['Painting'/272, l='MpServer', x=84.50, y=62.50, z=-122.94], ok['Painting'/279, l='MpServer', x=85.50, y=62.50, z=-114.06], ok['Painting'/278, l='MpServer', x=84.00, y=62.50, z=-114.06], ok['Painting'/277, l='MpServer', x=82.50, y=62.50, z=-114.06], ok['Painting'/276, l='MpServer', x=80.00, y=62.50, z=-114.06], ok['Painting'/283, l='MpServer', x=82.00, y=62.50, z=-117.94], ok['Painting'/282, l='MpServer', x=80.50, y=61.50, z=-113.06], ok['Painting'/281, l='MpServer', x=81.50, y=61.50, z=-113.06], ok['Painting'/280, l='MpServer', x=82.50, y=61.50, z=-113.06], ok['Painting'/287, l='MpServer', x=86.94, y=62.50, z=-116.00], ok['Painting'/286, l='MpServer', x=86.94, y=62.50, z=-114.50], ok['Painting'/285, l='MpServer', x=86.00, y=62.50, z=-117.94], ok['Painting'/284, l='MpServer', x=86.50, y=61.50, z=-117.94], ok['Painting'/258, l='MpServer', x=84.00, y=62.50, z=-137.06], ok['Painting'/259, l='MpServer', x=85.50, y=62.50, z=-138.06], ok['Painting'/256, l='MpServer', x=85.50, y=62.50, z=-136.94], ok['Painting'/257, l='MpServer', x=84.50, y=62.50, z=-135.94], ok['Painting'/262, l='MpServer', x=85.00, y=62.00, z=-133.06], ok['Painting'/263, l='MpServer', x=85.50, y=62.50, z=-129.06], ok['Painting'/260, l='MpServer', x=84.00, y=58.50, z=-133.94], ok['Painting'/261, l='MpServer', x=80.00, y=58.50, z=-133.94], ok['Painting'/266, l='MpServer', x=87.50, y=58.50, z=-133.94], rn['Bat'/267, l='MpServer', x=87.50, y=61.10, z=-140.69], ok['Painting'/264, l='MpServer', x=83.06, y=62.50, z=-131.00], ok['Painting'/265, l='MpServer', x=84.50, y=62.00, z=-131.94], ok['Painting'/270, l='MpServer', x=87.00, y=58.50, z=-126.06], ok['Painting'/271, l='MpServer', x=85.00, y=62.00, z=-119.06], rn['Bat'/268, l='MpServer', x=83.22, y=60.02, z=-140.78], ok['Painting'/269, l='MpServer', x=83.00, y=58.50, z=-126.06], rx['Pig'/307, l='MpServer', x=106.66, y=88.00, z=-212.78], ts['Spider'/306, l='MpServer', x=105.00, y=64.00, z=-243.19], tq['Skeleton'/308, l='MpServer', x=103.41, y=64.00, z=-147.13], te['Creeper'/313, l='MpServer', x=122.50, y=65.00, z=-149.50], ry['Sheep'/312, l='MpServer', x=114.13, y=82.00, z=-246.06], ok['Painting'/225, l='MpServer', x=88.06, y=54.50, z=-223.50], ok['Painting'/174, l='MpServer', x=72.06, y=54.50, z=-223.00], ok['Painting'/228, l='MpServer', x=90.94, y=54.50, z=-214.00], ok['Painting'/227, l='MpServer', x=90.94, y=54.50, z=-217.50], ok['Painting'/226, l='MpServer', x=90.94, y=54.50, z=-220.00], ok['Painting'/141, l='MpServer', x=59.94, y=92.00, z=-196.00], bdf['speedster4006'/425, l='MpServer', x=62.21, y=66.62, z=-204.95], ok['Painting'/144, l='MpServer', x=63.50, y=66.50, z=-174.94], ok['Painting'/143, l='MpServer', x=61.50, y=66.50, z=-174.94], ok['Painting'/142, l='MpServer', x=59.50, y=66.50, z=-174.94], ok['Painting'/183, l='MpServer', x=78.94, y=54.50, z=-164.00], ok['Painting'/181, l='MpServer', x=75.00, y=54.50, z=-163.06], ok['Painting'/182, l='MpServer', x=78.94, y=54.00, z=-169.00], ok['Painting'/245, l='MpServer', x=84.06, y=54.50, z=-170.00], ok['Painting'/244, l='MpServer', x=86.00, y=54.50, z=-172.94], ok['Painting'/247, l='MpServer', x=86.00, y=54.50, z=-163.06], ok['Painting'/246, l='MpServer', x=84.06, y=54.00, z=-165.00], ok['Painting'/253, l='MpServer', x=81.00, y=92.00, z=-174.94], ok['Painting'/241, l='MpServer', x=84.94, y=66.50, z=-185.50], ok['Painting'/240, l='MpServer', x=84.94, y=66.50, z=-187.50], ok['Painting'/243, l='MpServer', x=84.94, y=66.50, z=-181.50], ok['Painting'/242, l='MpServer', x=84.94, y=66.50, z=-183.50], ok['Painting'/256, l='MpServer', x=85.50, y=62.50, z=-136.94], ok['Painting'/257, l='MpServer', x=84.50, y=62.50, z=-135.94], ok['Painting'/262, l='MpServer', x=85.00, y=62.00, z=-133.06], ok['Painting'/263, l='MpServer', x=85.50, y=62.50, z=-129.06], ok['Painting'/254, l='MpServer', x=85.00, y=62.00, z=-140.94], ok['Painting'/255, l='MpServer', x=83.06, y=62.50, z=-140.00], ok['Painting'/258, l='MpServer', x=84.00, y=62.50, z=-137.06], ok['Painting'/259, l='MpServer', x=85.50, y=62.50, z=-138.06], ok['Painting'/221, l='MpServer', x=90.94, y=54.50, z=-229.50], ok['Painting'/167, l='MpServer', x=72.06, y=54.50, z=-231.50], ok['Painting'/168, l='MpServer', x=72.06, y=54.50, z=-227.50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bda.a(SourceFile:284)
	at ats.b(SourceFile:1761)
	at ats.d(SourceFile:628)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Mac OS X (x86_64) version 10.8.5
	Java Version: 1.6.0_65, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 74038056 bytes (70 MB) / 230354944 bytes (219 MB) up to 1065025536 bytes (1015 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 21768 (1219008 bytes; 1 MB) allocated, 969 (54264 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: Intel HD Graphics 4000 OpenGL Engine GL version 2.1 INTEL-8.16.74, Intel Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1292 (72352 bytes; 0 MB) allocated, 161 (9016 bytes; 0 MB) used