Fucking Random.nextInt(), how does it work?

Mods loaded: 12
ModLoader 1.2.4
mod_AdanacEnt Minecraft 1.2.4
mod_Blood Minecraft 1.2.4
mod_DimensionTest whatever
mod_DreamDimension 0.0.1 yeah
mod_EvilEnder Minecraft 1.2.4
mod_EvilMinecraft Minecraft 1.2.4
mod_EvilNether Minecraft 1.2.4
mod_Fligabob Minecraft 1.2.4
mod_MeatAndFood Minecraft 1.2.4
mod_Other Minecraft 1.2.4
mod_Pigmen 1.2.4

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

Minecraft has stopped running because it encountered a problem.




--- BEGIN ERROR REPORT f32c872 --------
Generated 4/4/12 7:01 PM

Minecraft: Minecraft 1.2.4
OS: Windows 7 (amd64) version 6.1
Java: 1.7.0_02-ea, Oracle Corporation
VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: ATI Mobility Radeon HD 4200 Series version 3.3.11318 Compatibility Profile Context, ATI Technologies Inc.

java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Unknown Source)
	at net.minecraft.src.SoundPool.getRandomSoundFromSoundPool(SoundPool.java:85)
	at net.minecraft.src.SoundManager.playSoundFX(SoundManager.java:378)
	at net.minecraft.src.GuiMainMenu.manageHotspots(GuiMainMenu.java:158)
	at net.minecraft.src.GuiMainMenu.updateScreen(GuiMainMenu.java:150)
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1543)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:790)
	at net.minecraft.client.Minecraft.run(Minecraft.java:698)
	at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT de856f28 ----------