crash report from 2014-03-03

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 03/03/14 20:04
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:282)
	at net.minecraft.server.v1_7_R1.DedicatedServer.a(DedicatedServer.java:228)
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:465)
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)


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

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Linux (amd64) version 3.10.23-xxxx-std-ipv6-64
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 3982703088 bytes (3798 MB) / 4242669568 bytes (4046 MB) up to 14980087808 bytes (14286 MB)
	JVM Flags: 7 total; -Xincgc -Xmx14G -Xms4G -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:ParallelGCThreads=6 -XX:+AggressiveOpts
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	CraftBukkit Information:
   Running:
   Failed to handle CraftCrashReport:
java.lang.NullPointerException
	at org.bukkit.Bukkit.getName(Bukkit.java:74)
	at org.bukkit.craftbukkit.v1_7_R1.CraftCrashReport.call(CraftCrashReport.java:20)
	at net.minecraft.server.v1_7_R1.CrashReportSystemDetails.a(SourceFile:74)
	at net.minecraft.server.v1_7_R1.CrashReport.h(CrashReport.java:45)
	at net.minecraft.server.v1_7_R1.CrashReport.<init>(CrashReport.java:33)
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:474)
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)

	Profiler Position: N/A (disabled)
	Is Modded: ~~ERROR~~ NullPointerException: null
	Type: Dedicated Server (map_server.txt)