Hopper: java.lang.NoClassDefFoundError: Could not initialize class ek

java.lang.NoClassDefFoundError: Could not initialize class ek
	at azd.a(SourceFile:1622)
	at bce.e(SourceFile:162)
	at bcf.a(SourceFile:214)
	at bay.a(SourceFile:186)
	at bce.a(SourceFile:187)

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

Time: 13-10-26 22:01
Description: Rendering screen

java.lang.NoClassDefFoundError: gnu/trove/map/TIntObjectMap
	at azd.a(SourceFile:1622)
	at bce.e(SourceFile:162)
	at bcf.a(SourceFile:214)
	at bay.a(SourceFile:186)
	at bce.a(SourceFile:187)
	at bll.b(SourceFile:851)
	at azd.ad(SourceFile:780)
	at azd.e(SourceFile:704)
	at net.minecraft.client.main.Main.main(SourceFile:103)
Caused by: java.lang.ClassNotFoundException: gnu.trove.map.TIntObjectMap
	at java.net.URLClassLoader$1.run(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)
	... 9 more


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

-- Head --
Stacktrace:
	at azd.a(SourceFile:1622)
	at bce.e(SourceFile:162)
	at bcf.a(SourceFile:214)
	at bay.a(SourceFile:186)
	at bce.a(SourceFile:187)

-- Screen render details --
Details:
	Screen name: btj
	Mouse location: Scaled: (189, 52). Absolute: (1181, 573)
	Screen size: Scaled: (427, 240). Absolute: (1920, 1018). Scale factor of 2
Stacktrace:
	at bll.b(SourceFile:851)
	at azd.ad(SourceFile:780)
	at azd.e(SourceFile:704)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	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, sharing), Oracle Corporation
	Memory: 116263656 bytes (110 MB) / 261234688 bytes (249 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
	LWJGL: 2.9.0
	OpenGL: GeForce 9800 GT/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
	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)