---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 4/24/14 7:14 PM
Description: Exception in server tick loop

java.lang.IllegalArgumentException: n must be positive
	at java.util.Random.nextInt(Random.java:250)
	at ayy.a(SourceFile:442)
	at od.a(SourceFile:175)
	at axr.a(SourceFile:859)
	at od.c(SourceFile:104)
	at net.minecraft.server.MinecraftServer.i(SourceFile:269)
	at cim.a(SourceFile:94)
	at cim.g(SourceFile:110)
	at net.minecraft.server.MinecraftServer.run(SourceFile:367)
	at mu.run(SourceFile:667)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 14w17a
	Operating System: Mac OS X (x86_64) version 10.9.1
	Java Version: 1.6.0_65, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 314657120 bytes (300 MB) / 1065025536 bytes (1015 MB) up to 1065025536 bytes (1015 MB)
	JVM Flags: 1 total; -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 81
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.