---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 06/10/15 2:47 AM
Description: Ticking entity

java.lang.IllegalArgumentException
	at ol.a(SourceFile:18)
	at ol.a(SourceFile:37)
	at agn.h(SourceFile:179)
	at agn.c(SourceFile:71)
	at xw.m(SourceFile:66)
	at agw.a(SourceFile:1462)
	at lk.a(SourceFile:705)
	at agw.g(SourceFile:1440)
	at agw.k(SourceFile:1330)
	at lk.k(SourceFile:538)
	at net.minecraft.server.MinecraftServer.D(SourceFile:618)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)
	at bvr.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:450)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at ol.a(SourceFile:18)
	at ol.a(SourceFile:37)
	at agn.h(SourceFile:179)
	at agn.c(SourceFile:71)
	at xw.m(SourceFile:66)
	at agw.a(SourceFile:1462)
	at lk.a(SourceFile:705)
	at agw.g(SourceFile:1440)

-- Entity being ticked --
Details:
	Entity Type: MinecartSpawner (xw)
	Entity ID: 2104
	Entity Name: entity.MinecartSpawner.name
	Entity's Exact location: 148.50, 69.46, 238.50
	Entity's Block location: World: (148,69,238), Chunk: (at 4,4,14 in 9,14; contains blocks 144,0,224 to 159,255,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: 0.00, -0.04, 0.00
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at agw.k(SourceFile:1330)
	at lk.k(SourceFile:538)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [lm['Arcensoth'/439, l='New World', x=146.32, y=69.40, z=239.16]]
	Chunk stats: ServerChunkCache: 1091 Drop: 0
	Level seed: 8635496227618276461
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (152,64,236), Chunk: (at 8,4,12 in 9,14; contains blocks 144,0,224 to 159,255,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 302 game time, 302 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 157082 (now: false), thunder time: 179511 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:618)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)
	at bvr.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:450)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 15w40b
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_60, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 219516488 bytes (209 MB) / 480772096 bytes (458 MB) up to 4250402816 bytes (4053 MB)
	JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [lm['Arcensoth'/439, l='New World', x=146.32, y=69.40, z=239.16]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.