Hopper: java.lang.IllegalArgumentException: MALFORMED

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-148549/

Crash:

java.lang.IllegalArgumentException: MALFORMED
	at java.util.zip.ZipCoder.toString(Unknown Source)
	at java.util.zip.ZipFile.getZipEntry(Unknown Source)
	at java.util.zip.ZipFile.access$900(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at bmj.c(SourceFile:69)
	at bmy.a(SourceFile:30)
	at bmy.a(SourceFile:84)
	at awo.b(SourceFile:422)
	at bdc.a(SourceFile:146)
	at azi.a(SourceFile:169)
	at bdc.a(SourceFile:153)
	at azi.d(SourceFile:237)
	at azi.m(SourceFile:208)

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 13/09/13 21:33
Description: Updating screen events

java.lang.IllegalArgumentException: MALFORMED
	at java.util.zip.ZipCoder.toString(Unknown Source)
	at java.util.zip.ZipFile.getZipEntry(Unknown Source)
	at java.util.zip.ZipFile.access$900(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at bmj.c(SourceFile:69)
	at bmy.a(SourceFile:30)
	at bmy.a(SourceFile:84)
	at awo.b(SourceFile:422)
	at bdc.a(SourceFile:146)
	at azi.a(SourceFile:169)
	at bdc.a(SourceFile:153)
	at azi.d(SourceFile:237)
	at azi.m(SourceFile:208)
	at awo.m(SourceFile:1210)
	at awo.V(SourceFile:690)
	at awo.e(SourceFile:646)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at java.util.zip.ZipCoder.toString(Unknown Source)
	at java.util.zip.ZipFile.getZipEntry(Unknown Source)
	at java.util.zip.ZipFile.access$900(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at java.util.zip.ZipFile$1.nextElement(Unknown Source)
	at bmj.c(SourceFile:69)
	at bmy.a(SourceFile:30)
	at bmy.a(SourceFile:84)
	at awo.b(SourceFile:422)
	at bdc.a(SourceFile:146)
	at azi.a(SourceFile:169)
	at bdc.a(SourceFile:153)
	at azi.d(SourceFile:237)
	at azi.m(SourceFile:208)

-- Affected screen --
Details:
	Screen name: bdc

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bfz['ASTEVEMAN2K3'/22624, l='MpServer', x=-20.93, y=81.62, z=110.57]]
	Chunk stats: MultiplayerChunkCache: 255, 255
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-9,64,82), Chunk: (at 7,4,2 in -1,5; contains blocks -16,0,80 to -1,255,95), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 10810 game time, 10810 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: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 18 total; [ta['Squid'/22578, l='MpServer', x=-58.50, y=58.34, z=148.81], ta['Squid'/22579, l='MpServer', x=-58.69, y=58.38, z=153.94], ta['Squid'/22576, l='MpServer', x=-69.66, y=56.00, z=142.34], ta['Squid'/22577, l='MpServer', x=-65.94, y=58.34, z=144.94], sm['Bat'/26010, l='MpServer', x=18.34, y=32.00, z=170.97], sm['Bat'/22585, l='MpServer', x=-30.06, y=17.57, z=86.88], sm['Bat'/26630, l='MpServer', x=-63.88, y=47.00, z=105.94], bfz['ASTEVEMAN2K3'/22624, l='MpServer', x=-20.93, y=81.62, z=110.57], sm['Bat'/26625, l='MpServer', x=-69.47, y=26.81, z=171.63], sm['Bat'/22575, l='MpServer', x=-69.38, y=23.85, z=183.47], ta['Squid'/22574, l='MpServer', x=-65.06, y=59.38, z=153.13], sm['Bat'/22573, l='MpServer', x=-66.69, y=22.82, z=164.09], sm['Bat'/22571, l='MpServer', x=-67.22, y=24.10, z=161.94], sm['Bat'/22568, l='MpServer', x=-93.25, y=22.10, z=139.75], sm['Bat'/26583, l='MpServer', x=-68.53, y=35.00, z=123.34], sm['Bat'/26517, l='MpServer', x=-2.06, y=45.00, z=167.50], sm['Bat'/26507, l='MpServer', x=7.53, y=39.68, z=46.38], sm['Bat'/26506, l='MpServer', x=5.66, y=39.80, z=47.38]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bfu.a(SourceFile:285)
	at awo.b(SourceFile:1821)
	at awo.e(SourceFile:655)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w37b
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_17, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 200558184 bytes (191 MB) / 498860032 bytes (475 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 234 (13104 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 13w37b
	LWJGL: 2.9.0
	OpenGL: ATI Radeon HD 5400 Series GL version 4.2.12002 Compatibility Profile Context 9.12.0.0, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [Bilal Custom resource pack.zip]
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1552 (86912 bytes; 0 MB) allocated, 15 (840 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-148549/10559235/