---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 12/6/13 3:11 AM
Description: Exception in server tick loop

java.lang.RuntimeException: Failed to check session lock, aborting
	at net.minecraft.server.v1_7_R1.WorldNBTStorage.h(WorldNBTStorage.java:57)
	at net.minecraft.server.v1_7_R1.WorldNBTStorage.<init>(WorldNBTStorage.java:42)
	at net.minecraft.server.v1_7_R1.ServerNBTManager.<init>(SourceFile:16)
	at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:216)
	at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:184)
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:426)
	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 2.6.32-5-amd64
	Java Version: 1.7.0_10, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 177990144 bytes (169 MB) / 257294336 bytes (245 MB) up to 1908932608 bytes (1820 MB)
	JVM Flags: 2 total; -Xmx2048M -Xms256M
	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: CraftBukkit version git-Spigot-1171 (MC: 1.7.2) (Implementing API version 1.7.2-R0.1-SNAPSHOT) true
   Plugins: { CorePlugin v0.0.1 com.coreserver.coreplugin.CorePlugin[Author],}
   Warnings: DEFAULT
   Threads: { WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:503), java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)], WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:503), java.util.TimerThread.mainLoop(Unknown Source), java.util.TimerThread.run(Unknown Source)], RUNNABLE Spigot Metrics Thread: [java.net.SocketInputStream.socketRead0(Native Method), java.net.SocketInputStream.read(Unknown Source), java.net.SocketInputStream.read(Unknown Source), java.io.BufferedInputStream.fill(Unknown Source), java.io.BufferedInputStream.read1(Unknown Source), java.io.BufferedInputStream.read(Unknown Source), sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source), sun.net.www.http.HttpClient.parseHTTP(Unknown Source), sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source), org.spigotmc.Metrics.postPlugin(Metrics.java:435), org.spigotmc.Metrics.access$400(Metrics.java:68), org.spigotmc.Metrics$1.run(Metrics.java:240), java.util.TimerThread.mainLoop(Unknown Source), java.util.TimerThread.run(Unknown Source)], TIMED_WAITING Server Infinisleeper: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_7_R1.ThreadSleepForever.run(SourceFile:62)], WAITING Thread-5: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(Unknown Source), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source), java.util.concurrent.LinkedBlockingQueue.take(Unknown Source), net.minecraft.util.com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:73), org.bukkit.craftbukkit.v1_7_R1.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:25), java.lang.Thread.run(Unknown Source)], WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(Unknown Source), java.lang.ref.ReferenceQueue.remove(Unknown Source), java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)], TIMED_WAITING Spigot Watchdog Thread: [java.lang.Thread.sleep(Native Method), org.spigotmc.WatchdogThread.run(WatchdogThread.java:85)], RUNNABLE Server console handler: [java.io.FileInputStream.readBytes(Native Method), java.io.FileInputStream.read(Unknown Source), java.io.BufferedInputStream.fill(Unknown Source), java.io.BufferedInputStream.read(Unknown Source), java.io.FilterInputStream.read(Unknown Source), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader$1.read(ConsoleReader.java:167), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:267), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:204), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:995), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLineSimple(ConsoleReader.java:1506), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1153), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1117), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1105), net.minecraft.server.v1_7_R1.ThreadCommandReader.run(ThreadCommandReader.java:34)], RUNNABLE DestroyJavaVM: [], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Unknown Source), org.bukkit.craftbukkit.v1_7_R1.CraftCrashReport.call(CraftCrashReport.java:28), net.minecraft.server.v1_7_R1.CrashReportSystemDetails.a(SourceFile:74), net.minecraft.server.v1_7_R1.CrashReport.h(CrashReport.java:45), net.minecraft.server.v1_7_R1.CrashReport.<init>(CrashReport.java:33), net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:458), net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)], TIMED_WAITING process reaper: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source), java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source), java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source), java.util.concurrent.SynchronousQueue.poll(Unknown Source), java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source), java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source), java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source), java.lang.Thread.run(Unknown Source)], RUNNABLE Netty IO #0: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(Unknown Source), sun.nio.ch.EPollSelectorImpl.doSelect(Unknown Source), sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source), sun.nio.ch.SelectorImpl.select(Unknown Source), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Unknown Source)], RUNNABLE Signal Dispatcher: [],}
   Recent tasks from -31--1{}
	Profiler Position: N/A (disabled)
	Player Count: 0 / 250; []
	Is Modded: Definitely; Server brand changed to 'craftbukkit'
	Type: Dedicated Server (map_server.txt)