---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 9/4/13 2:25 PM
Description: Exception in server tick loop

java.lang.RuntimeException: Failed to check session lock, aborting
	at net.minecraft.server.v1_6_R2.WorldNBTStorage.h(WorldNBTStorage.java:54)
	at net.minecraft.server.v1_6_R2.WorldNBTStorage.<init>(WorldNBTStorage.java:39)
	at net.minecraft.server.v1_6_R2.ServerNBTManager.<init>(SourceFile:16)
	at net.minecraft.server.v1_6_R2.WorldLoaderServer.a(SourceFile:83)
	at net.minecraft.server.v1_6_R2.MinecraftServer.a(MinecraftServer.java:152)
	at net.minecraft.server.v1_6_R2.DedicatedServer.init(DedicatedServer.java:151)
	at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:391)
	at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)


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

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Linux (amd64) version 3.8.0-19-generic
	Java Version: 1.8.0-ea, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 449138728 bytes (428 MB) / 504889344 bytes (481 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1024M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: $Proxy1[com.avaje.ebean.config.dbplatform.DatabasePlatform, SQLitePlatform], [net.minecraft.server.v1_6_R2.ICommandListener, IMojangStatistics, Packet, ...], [org.bukkit.BlockChangeDelegate, World, Server, ...], [org.bukkit.block.BlockState, BlockFace], [org.bukkit.command.CommandSender, RemoteConsoleCommandSender, CommandException, ...], [org.bukkit.command.defaults.VanillaCommand, SaveCommand, SaveOnCommand, ...], [org.bukkit.configuration.ConfigurationSection, Configuration, MemorySection, ...], [org.bukkit.configuration.file.FileConfiguration, YamlConfiguration, FileConfigurationOptions, ...], [org.bukkit.configuration.serialization.ConfigurationSerializable, ConfigurationSerialization, DelegateDeserialization, ...], [org.bukkit.conversations.Conversable, ConversationCanceller], [org.bukkit.craftbukkit.Main], [org.bukkit.craftbukkit.libs.com.google.gson.JsonDeserializer, JsonParseException], [org.bukkit.craftbukkit.libs.jline.Terminal, TerminalSupport, UnsupportedTerminal, ...], [org.bukkit.craftbukkit.libs.jline.console.ConsoleReader, CursorBuffer, ConsoleKeys, ...], [org.bukkit.craftbukkit.libs.jline.console.completer.CompletionHandler, CandidateListCompletionHandler], [org.bukkit.craftbukkit.libs.jline.console.history.History, MemoryHistory], [org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader, Configuration, Log], [org.bukkit.craftbukkit.v1_6_R2.LoggerOutputStream, CraftServer, CraftOfflinePlayer, ...], [org.bukkit.craftbukkit.v1_6_R2.command.ServerCommandSender, CraftConsoleCommandSender, ColouredConsoleSender], [org.bukkit.craftbukkit.v1_6_R2.conversations.ConversationTracker], [org.bukkit.craftbukkit.v1_6_R2.enchantments.CraftEnchantment], [org.bukkit.craftbukkit.v1_6_R2.help.SimpleHelpMap, CommandAliasHelpTopic, HelpYamlReader, ...], [org.bukkit.craftbukkit.v1_6_R2.inventory.CraftItemStack, CraftRecipe, CraftShapedRecipe, ...], [org.bukkit.craftbukkit.v1_6_R2.metadata.EntityMetadataStore, PlayerMetadataStore, WorldMetadataStore], [org.bukkit.craftbukkit.v1_6_R2.potion.CraftPotionEffectType, CraftPotionBrewer], [org.bukkit.craftbukkit.v1_6_R2.scheduler.CraftScheduler, CraftTask, CraftFuture, ...], [org.bukkit.craftbukkit.v1_6_R2.updater.AutoUpdater, BukkitDLUpdaterService, DateDeserializer], [org.bukkit.craftbukkit.v1_6_R2.util.Waitable, ServerShutdownThread, TerminalConsoleHandler, ...], [org.bukkit.enchantments.Enchantment, EnchantmentWrapper], [org.bukkit.entity.Entity, Damageable, LivingEntity, ...], [org.bukkit.event.Event, Cancellable, Listener], [org.bukkit.event.block.BlockEvent, BlockFadeEvent, BlockGrowEvent, ...], [org.bukkit.event.entity.EntityEvent, EntityInteractEvent, EntityDamageEvent, ...], [org.bukkit.event.hanging.HangingEvent, HangingPlaceEvent], [org.bukkit.event.inventory.InventoryMoveItemEvent], [org.bukkit.event.painting.PaintingEvent, PaintingPlaceEvent], [org.bukkit.event.player.PlayerEvent, PlayerFishEvent, PlayerMoveEvent, ...], [org.bukkit.event.server.ServerEvent, MapInitializeEvent, ServerCommandEvent, ...], [org.bukkit.event.world.WorldEvent, WorldInitEvent, WorldSaveEvent, ...], [org.bukkit.help.HelpMap, HelpTopic, IndexHelpTopic, ...], [org.bukkit.inventory.ItemStack, Inventory, Recipe, ...], [org.bukkit.inventory.meta.ItemMeta, Repairable, BookMeta, ...], [org.bukkit.map.MapView], [org.bukkit.material.MaterialData, Tree, Directional, ...], [org.bukkit.metadata.Metadatable, MetadataStore, MetadataStoreBase], [org.bukkit.permissions.ServerOperator, Permissible, PermissionDefault, ...], [org.bukkit.plugin.ServicesManager, PluginManager, SimpleServicesManager, ...], [org.bukkit.plugin.java.JavaPluginLoader, PluginClassLoader, JavaPlugin], [org.bukkit.plugin.messaging.PluginMessageRecipient, Messenger, StandardMessenger, ...], [org.bukkit.potion.PotionEffectType, PotionEffectTypeWrapper, PotionBrewer, ...], [org.bukkit.scheduler.BukkitScheduler, BukkitTask], [org.bukkit.scoreboard.ScoreboardManager, DisplaySlot], [org.bukkit.util.Vector, BlockVector, Java15Compat, ...], [org.fusesource.jansi.Ansi, NoAnsi, Attribute, ...], [org.yaml.snakeyaml.DumperOptions, ScalarStyle, FlowStyle, ...], [org.yaml.snakeyaml.composer.Composer, ComposerException], [org.yaml.snakeyaml.constructor.BaseConstructor, SafeConstructor, Constructor, ...], [org.yaml.snakeyaml.emitter.Emitable, Emitter, EmitterState, ...], [org.yaml.snakeyaml.error.YAMLException, MarkedYAMLException, Mark], [org.yaml.snakeyaml.events.Event, NodeEvent, ScalarEvent, ...], [org.yaml.snakeyaml.external.com.google.gdata.util.common.base.Escaper, UnicodeEscaper, PercentEscaper], [org.yaml.snakeyaml.introspector.PropertyUtils, BeanAccess], [org.yaml.snakeyaml.nodes.Node, CollectionNode, MappingNode, ...], [org.yaml.snakeyaml.parser.Parser, ParserImpl, Production, ...], [org.yaml.snakeyaml.reader.UnicodeReader, StreamReader, ReaderException], [org.yaml.snakeyaml.representer.BaseRepresenter, SafeRepresenter, Representer, ...], [org.yaml.snakeyaml.resolver.Resolver, ResolverTuple], [org.yaml.snakeyaml.scanner.Scanner, ScannerImpl, ScannerException, ...], [org.yaml.snakeyaml.serializer.Serializer, SerializerException], [org.yaml.snakeyaml.tokens.Token, AliasToken, ScalarToken, ...], [org.yaml.snakeyaml.util.UriEncoder, ArrayStack]
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	CraftBukkit Information:
   Running: CraftBukkit version git-Bukkit-1.6.2-R0.1-b2838jnks (MC: 1.6.2) (Implementing API version 1.6.2-R0.1) false
   Plugins: { WorldEdit v5.5.6 com.sk89q.worldedit.bukkit.WorldEditPlugin [], Multiverse-Core v2.5-b670 com.onarandombox.MultiverseCore.MultiverseCore [Rigby, fernferret, lithium3141, main--], BungeePortals v1.1 com.fuzzoland.BungeePortals.BungeePortals [YoFuzzy3], WorldGuard v5.8 com.sk89q.worldguard.bukkit.WorldGuardPlugin [],}
   Warnings: DEFAULT
   Threads: { RUNNABLE Thread-5: [java.io.FileInputStream.readBytes(Native Method), java.io.FileInputStream.read(FileInputStream.java:234), java.io.BufferedInputStream.fill(BufferedInputStream.java:235), java.io.BufferedInputStream.read(BufferedInputStream.java:254), java.io.FilterInputStream.read(FilterInputStream.java:83), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader$1.read(ConsoleReader.java:167), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:267), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:204), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:995), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLineSimple(ConsoleReader.java:1506), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1153), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1117), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1105), net.minecraft.server.v1_6_R2.ThreadCommandReader.run(ThreadCommandReader.java:33)], WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:502), java.lang.ref.Reference$ReferenceHandler.run(Reference.java:156)], RUNNABLE Signal Dispatcher: [], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Thread.java:1582), org.bukkit.craftbukkit.v1_6_R2.CraftCrashReport.call(CraftCrashReport.java:28), net.minecraft.server.v1_6_R2.CrashReportSystemDetails.a(SourceFile:74), net.minecraft.server.v1_6_R2.CrashReport.h(CrashReport.java:41), net.minecraft.server.v1_6_R2.CrashReport.<init>(CrashReport.java:28), net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:436), net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)], RUNNABLE DestroyJavaVM: [], RUNNABLE Listen thread: [java.net.PlainSocketImpl.socketAccept(Native Method), java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:404), java.net.ServerSocket.implAccept(ServerSocket.java:545), java.net.ServerSocket.accept(ServerSocket.java:513), net.minecraft.server.v1_6_R2.DedicatedServerConnectionThread.run(DedicatedServerConnectionThread.java:59)], WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:502), java.util.TimerThread.mainLoop(Timer.java:526), java.util.TimerThread.run(Timer.java:505)], TIMED_WAITING Thread-4: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_6_R2.ThreadSleepForever.run(SourceFile:64)], WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:139), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:155), java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:189)],}
   Recent tasks from -31--1{}
	Profiler Position: N/A (disabled)
	Player Count: 0 / 1000; []
	Is Modded: Definitely; Server brand changed to 'craftbukkit'
	Type: Dedicated Server (map_server.txt)