Minecraft has crashed!
      ----------------------

Minecraft has stopped running because it encountered a problem; Exception ticking world

A full error report has been saved to C:\Users\user\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-12_20.33.16-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT 1fcebf6a --------
Full report at:
C:\Users\user\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-12_20.33.16-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 13/03/12 20:33

-- Head --
Stacktrace:
	at aam.a(SourceFile:106)
	at aam.a(SourceFile:90)
	at im.b(SourceFile:152)
	at im.b(SourceFile:200)
	at in.b(SourceFile:116)

-- Affected level --
Details:
	Level name: 新規ワールド
	All players: 1 total; [iq['fuyuuutuly'/133, l='新規ワールド', x=-220.20, y=71.00, z=250.87]]
	Chunk stats: ServerChunkCache: 625 Drop: 21
	Level seed: -9081427636877008229
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: World: (-220,64,252), Chunk: (at 4,4,12 in -14,15; contains blocks -224,0,240 to -209,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 478 game time, 478 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 19460 (now: false), thunder time: 59727 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.r(SourceFile:736)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)

-- System Details --
Details:
	Minecraft Version: 1.4.7
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_13, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 305209760 bytes (291 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 10668 (597408 bytes; 0 MB) allocated, 18 (1008 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1811 (101416 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['fuyuuutuly'/133, l='新規ワールド', x=-220.20, y=71.00, z=250.87]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated

java.lang.NoSuchMethodError: aan.<init>(Lxv;Lbq;)V
	at aam.a(SourceFile:106)
	at aam.a(SourceFile:90)
	at im.b(SourceFile:152)
	at im.b(SourceFile:200)
	at in.b(SourceFile:116)
	at net.minecraft.server.MinecraftServer.r(SourceFile:736)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)
--- END ERROR REPORT a323f7bb ----------