Random Crashes?

I keep on getting random crashes form my world. I tried resetting my options,
re-installing minecraft, recreating the world and editing it the same way, among other things.

I make a flatland world, using the preset tunneler's dream, and use MCEDIT to take of chunks of land, in order to isolate the player into a certain part of the map.

However, minecraft keeps crashing if I:

a) Set my View Distance to 16 chunks

b) Explore my section of land too far into the distance.

It seems to be a certain part of my map that is corrupted, or something... I do not know.

I also have the crashlog. It is the same every time.

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 1/23/14 8:40 AM
Description: Ticking memory connection

java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Unknown Source)
at agr.a(SourceFile:183)
at agr.a(SourceFile:27)
at agl.a(SourceFile:364)
at agu.a(SourceFile:42)
at apl.a(SourceFile:162)
at ml.a(SourceFile:160)
at aoo.a(SourceFile:781)
at ml.c(SourceFile:95)
at mk.<init>(SourceFile:36)
at mj.a(SourceFile:217)
at mj.d(SourceFile:351)
at lg.d(SourceFile:215)
at na.a(SourceFile:280)
at iu.a(SourceFile:137)
at iv.a(SourceFile:63)
at ef.a(SourceFile:164)
at mv.c(SourceFile:134)
at net.minecraft.server.MinecraftServer.u(SourceFile:528)
at net.minecraft.server.MinecraftServer.t(SourceFile:440)
at btk.t(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:357)
at lb.run(SourceFile:616)


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

-- Head --
Stacktrace:
at java.util.Random.nextInt(Unknown Source)
at agr.a(SourceFile:183)
at agr.a(SourceFile:27)
at agl.a(SourceFile:364)
at agu.a(SourceFile:42)
at apl.a(SourceFile:162)
at ml.a(SourceFile:160)
at aoo.a(SourceFile:781)
at ml.c(SourceFile:95)
at mk.<init>(SourceFile:36)
at mj.a(SourceFile:217)
at mj.d(SourceFile:351)
at lg.d(SourceFile:215)
at na.a(SourceFile:280)
at iu.a(SourceFile:137)
at iv.a(SourceFile:63)
at ef.a(SourceFile:164)

-- Ticking connection --
Details:
Connection: ef@1908140
Stacktrace:
at mv.c(SourceFile:134)
at net.minecraft.server.MinecraftServer.u(SourceFile:528)
at net.minecraft.server.MinecraftServer.t(SourceFile:440)
at btk.t(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:357)
at lb.run(SourceFile:616)

-- System Details --
Details:
Minecraft Version: 1.7.4
Operating System: Windows 8 (x86) version 6.2
Java Version: 1.7.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 88437072 bytes (84 MB) / 186769408 bytes (178 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 175 (9800 bytes; 0 MB) allocated, 79 (4424 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Profiler Position: N/A (disabled)
Vec3 Pool Size: 14 (784 bytes; 0 MB) allocated, 9 (504 bytes; 0 MB) used
Player Count: 1 / 8; [mp['thomasdelta'/0, l='The Battle for the Wool', x=80.01, y=255.23, z=2.97]]
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

If you know what's going on, please be kind and post a comment. Thank you.