Minecraft Crash Report

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 4/7/13 8:21 AM
Description: Exception ticking world entities

java.lang.IndexOutOfBoundsException: Index: 269, Size: 269
        at java.util.ArrayList.rangeCheck(ArrayList.java:604)
        at java.util.ArrayList.remove(ArrayList.java:445)
        at net.minecraft.server.v1_5_R2.World.tickEntities(World.java:1324)
        at net.minecraft.server.v1_5_R2.WorldServer.tickEntities(WorldServer.java:495)
        at net.minecraft.server.v1_5_R2.MinecraftServer.r(MinecraftServer.java:559)
        at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:229)
        at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:469)
        at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:401)
        at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)


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

-- Head --
Stacktrace:
        at java.util.ArrayList.rangeCheck(ArrayList.java:604)
        at java.util.ArrayList.remove(ArrayList.java:445)
        at net.minecraft.server.v1_5_R2.World.tickEntities(World.java:1324)
        at net.minecraft.server.v1_5_R2.WorldServer.tickEntities(WorldServer.java:495)

-- Affected level --
Details:
        Level name: Principal
        All players: 8 total; [EntityPlayer['NEMECIS12'/6706758, l='Principal', x=-385.69, y=217.39, z=-619.97](NEMECIS12 at -385.689468915591,217.39084839770183,-61$
        Chunk stats: ServerChunkCache: 355 Drop: 0
        Level seed: -501332645894217065
        Level generator: ID 01 - flat, ver 0. Features enabled: true
        Level generator options: 2;7,2x3,2;1
        Level spawn location: World: (-378,216,-609), Chunk: (at 6,13,15 in -24,-39; contains blocks -384,0,-624 to -369,255,-609), Region: (-1,-2; contains chunks -$
        Level time: 89683428 game time, 21253554086 day time
        Level dimension: 0
        Level storage version: 0x04ABD - Anvil
        Level weather: Rain time: 35480 (now: false), thunder time: 92910 (now: false)
        Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
        at net.minecraft.server.v1_5_R2.MinecraftServer.r(MinecraftServer.java:559)
        at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:229)
        at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:469)
        at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:401)
        at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)

-- System Details --
Details:
        Minecraft Version: 1.5.1
        Operating System: Linux (amd64) version 2.6.32-5-amd64
        Java Version: 1.7.0_12-ea, Oracle Corporation
        Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
        Memory: 1864654736 bytes (1778 MB) / 3572170752 bytes (3406 MB) up to 9544400896 bytes (9102 MB)
        JVM Flags: 2 total; -Xmx10G -Xms2G
        AABB Pool Size: 15411 (863016 bytes; 0 MB) allocated, 94 (5264 bytes; 0 MB) used
        Suspicious classes: $Proxy4, $Proxy5, $Proxy7, ...[com.avaje.ebean.EbeanServer], [com.avaje.ebean.config.dbplatform.DatabasePlatform, SQLitePlatform], [com.g$
        IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
        CraftBukkit Information:
   Running: CraftBukkit version git-Spigot-735 (MC: 1.5.1) (Implementing API version 1.5.1-R0.1-SNAPSHOT) false
   Plugins: { WorldBorder v1.6.1 com.wimbli.WorldBorder.WorldBorder [Brettflan], HideStream v2.8 com.mrmag518.HideStream.HideStream [mrmag518], CustomItems v1.6.0 or$
   Warnings: DEFAULT
   Threads: { TIMED_WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Timer.java:552), java.util.TimerThread.run(Timer.jav$
   Recent tasks from 1002156-1002186{SimpleClans2:com.p000ison.dev.simpleclans2.database.response.ResponseTask@1002186,Enjin Minecraft Plugin:com.enjin.officialplugi$
        Profiler Position: N/A (disabled)
        Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
        Player Count: 88 / 300; [EntityPlayer['Kevin'/5303197, l='Survival', x=1996.31, y=55.00, z=-1577.99](Kevin at 1996.3137990832329,55.0,-1577.9889797456453), E$
        Is Modded: Definitely; Server brand changed to 'craftbukkit'
        Type: Dedicated Server (map_server.txt)