Hopper: java.lang.ExceptionInInitializerError

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-465677/

Crash:

java.lang.ExceptionInInitializerError
	at azd.Z(SourceFile:417)

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

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 26/10/13 9:35 AM
Description: Initializing game

java.lang.ExceptionInInitializerError
	at azd.Z(SourceFile:417)
	at azd.e(SourceFile:689)
	at net.minecraft.client.main.Main.main(SourceFile:103)
Caused by: java.lang.SecurityException: SHA1 digest error for bic.class
	at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
	at java.util.jar.JarVerifier.processEntry(Unknown Source)
	at java.util.jar.JarVerifier.update(Unknown Source)
	at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
	at sun.misc.Resource.getBytes(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(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 bim.<init>(SourceFile:20)
	at bir.a(SourceFile:84)
	at bia.<init>(SourceFile:16)
	at bon.<init>(SourceFile:15)
	at bmx.<init>(SourceFile:11)
	at bnf.<init>(SourceFile:54)
	at bnf.<clinit>(SourceFile:37)
	... 3 more


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

-- Head --
Stacktrace:
	at azd.Z(SourceFile:417)

-- Initialization --
Details:
Stacktrace:
	at azd.e(SourceFile:689)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows Vista (x86) version 6.0
	Java Version: 1.6.0_38, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Sun Microsystems Inc.
	Memory: 40886256 bytes (38 MB) / 69758976 bytes (66 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.7.2 opti
	LWJGL: 2.9.0
	OpenGL: Intel Cantiga GL version 1.5.0 - Build 7.15.10.1518, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
	Anisotropic Filtering: Off (1)

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-465677/21778740/