---- Minecraft Crash Report ----
// I feel sad now :(

Time: 2013-04-19 16:55
Description: Exception in server tick loop

java.lang.InternalError: cannot create instance of org.bouncycastle.jcajce.provider.digest.GOST3411$Mappings : java.lang.ClassCastException: org.bouncycastle.jcajce.provider.digest.GOST3411$Mappings cannot be cast to aku
	at akv.a(Unknown Source)
	at akv.a(Unknown Source)
	at akv.a(Unknown Source)
	at akw.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at akv.<init>(Unknown Source)
	at hv.<clinit>(SourceFile:40)
	at axu.b(SourceFile:91)
	at net.minecraft.server.MinecraftServer.run(SourceFile:291)
	at ep.run(SourceFile:539)

Relevant Details:
- Minecraft Version: 1.3.1
- Operating System: Windows 8 (amd64) version 6.2
- Java Version: 1.7.0_21, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 217536416 bytes (207 MB) / 256835584 bytes (244 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 1 total; -Xmx1G
- Type: Integrated Server
- Is Modded: Unknown (can't tell)
- Profiler Position: N/A (disabled)
- Player Count: 0 / 8; []