Hey all, Currently I'm am getting a server together for some friends, however every now and then when I start the server this error comes up, does anyone know what it is and why it is happening? Code: ---- Minecraft Crash Report ---- // Ooh. Shiny. Time: 01/10/13 13:00 Description: Exception in server tick loop java.lang.RuntimeException: Failed to check session lock, aborting at net.minecraft.server.v1_6_R3.WorldNBTStorage.h(WorldNBTStorage.java:54) at net.minecraft.server.v1_6_R3.WorldNBTStorage.<init>(WorldNBTStorage.java:39) at net.minecraft.server.v1_6_R3.ServerNBTManager.<init>(SourceFile:16) at net.minecraft.server.v1_6_R3.MinecraftServer.a(MinecraftServer.java:192) at net.minecraft.server.v1_6_R3.DedicatedServer.init(DedicatedServer.java:152) at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:393) at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.6.4 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.7.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 42733072 bytes (40 MB) / 81199104 bytes (77 MB) up to 954466304 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: $Proxy3, $Proxy4[com.avaje.ebean.config.ServerConfig], [com.avaje.ebean.config.dbplatform.DatabasePlatform, SQLitePlatform], [com.mysql.jdbc.NonRegisteringDriver, Driver], [net.minecraft.server.v1_6_R3.ICommandListener, IMojangStatistics, ICommandHandler, ...], [org.bukkit.BlockChangeDelegate, World, Server, ...], [org.bukkit.block.BlockState, BlockFace, Block, ...], [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, Prompt, ...], [org.bukkit.craftbukkit.Main], [org.bukkit.craftbukkit.libs.com.google.gson.JsonDeserializer, JsonParseException, GsonBuilder, ...], [org.bukkit.craftbukkit.libs.com.google.gson.annotations.SerializedName], [org.bukkit.craftbukkit.libs.com.google.gson.internal.Excluder, $Gson$Preconditions, $Gson$Types, ...], [org.bukkit.craftbukkit.libs.com.google.gson.internal.bind.JsonTreeReader, JsonTreeWriter, TypeAdapters, ...], [org.bukkit.craftbukkit.libs.com.google.gson.reflect.TypeToken], [org.bukkit.craftbukkit.libs.com.google.gson.stream.JsonReader, JsonWriter, MalformedJsonException, ...], [org.bukkit.craftbukkit.libs.jline.TerminalFactory, Terminal, Flavor, ...], [org.bukkit.craftbukkit.libs.jline.console.ConsoleReader, CursorBuffer, ConsoleKeys, ...], [org.bukkit.craftbukkit.libs.jline.console.completer.CompletionHandler, CandidateListCompletionHandler, Completer], [org.bukkit.craftbukkit.libs.jline.console.history.History, MemoryHistory], [org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader, Configuration, Log], [org.bukkit.craftbukkit.v1_6_R3.LoggerOutputStream, CraftServer, CraftOfflinePlayer, ...], [org.bukkit.craftbukkit.v1_6_R3.command.ServerCommandSender, CraftConsoleCommandSender, ColouredConsoleSender, ...], [org.bukkit.craftbukkit.v1_6_R3.conversations.ConversationTracker], [org.bukkit.craftbukkit.v1_6_R3.enchantments.CraftEnchantment], [org.bukkit.craftbukkit.v1_6_R3.entity.CraftEntity, CraftLivingEntity, CraftHumanEntity, ...], [org.bukkit.craftbukkit.v1_6_R3.generator.InternalChunkGenerator, CustomChunkGenerator, NormalChunkGenerator, ...], [org.bukkit.craftbukkit.v1_6_R3.help.SimpleHelpMap, CommandAliasHelpTopic, HelpYamlReader, ...], [org.bukkit.craftbukkit.v1_6_R3.inventory.CraftItemStack, CraftRecipe, CraftShapedRecipe, ...], [org.bukkit.craftbukkit.v1_6_R3.map.CraftMapView], [org.bukkit.craftbukkit.v1_6_R3.metadata.EntityMetadataStore, PlayerMetadataStore, WorldMetadataStore, ...], [org.bukkit.craftbukkit.v1_6_R3.potion.CraftPotionEffectType, CraftPotionBrewer], [org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftScheduler, CraftAsyncDebugger, CraftTask, ...], [org.bukkit.craftbukkit.v1_6_R3.scoreboard.CraftScoreboardManager], [org.bukkit.craftbukkit.v1_6_R3.updater.AutoUpdater, BukkitDLUpdaterService, DateDeserializer, ...], [org.bukkit.craftbukkit.v1_6_R3.util.ServerShutdownThread, Waitable, TerminalConsoleHandler, ...], [org.bukkit.enchantments.Enchantment, EnchantmentWrapper], [org.bukkit.entity.Entity, Damageable, LivingEntity, ...], [org.bukkit.entity.minecart.PoweredMinecart, StorageMinecart, ExplosiveMinecart, ...], [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, InventoryType, InventoryEvent, ...], [org.bukkit.event.painting.PaintingEvent, PaintingPlaceEvent], [org.bukkit.event.player.PlayerEvent, PlayerFishEvent, PlayerJoinEvent, ...], [org.bukkit.event.server.ServerEvent, MapInitializeEvent, ServerCommandEvent, ...], [org.bukkit.event.weather.WeatherEvent, WeatherChangeEvent, ThunderChangeEvent, ...], [org.bukkit.event.world.WorldEvent, WorldInitEvent, WorldSaveEvent, ...], [org.bukkit.generator.ChunkGenerator], [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.hawtjni.runtime.Library], [org.fusesource.jansi.AnsiOutputStream, WindowsAnsiOutputStream, AnsiConsole, ...], [org.fusesource.jansi.internal.Kernel32, CONSOLE_SCREEN_BUFFER_INFO, COORD, ...], [org.json.simple.JSONAware, JSONStreamAware, JSONObject, ...], [org.json.simple.parser.JSONParser, ParseException, Yylex, ...], [org.sqlite.JDBC, Conn, SQLiteConfig, ...], [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, EmitterException, ...], [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, ParserException, ...], [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-R1.0-3-g9532cb6-b2889jnks (MC: 1.6.4) (Implementing API version 1.6.4-R0.1-SNAPSHOT) true Plugins: { DiscoSheep v1.1.1 ca.gibstick.discosheep.DiscoSheep [Gibstick, RangerMauve], LANBroadcaster v1.2 eu.icecraft_mc.LANBroadcaster.LANBroadcaster [Ruan], WorldEdit v5.5.8 com.sk89q.worldedit.bukkit.WorldEditPlugin [], NoCheatPlus v3.10.4-RC-sMD5NET-b631 fr.neatmonster.nocheatplus.NoCheatPlus [NeatMonster, asofold, Evenprime], DiscoArmor v2.1.1 com.lualzockt.DiscoArmor.DiscoArmor [LualZockt], NBTEditor v0.0.8 com.goncalomb.bukkit.nbteditor.NBTEditor [goncalomb], Vault v1.2.27-b349 net.milkbowl.vault.Vault [cereal, Sleaker, mung3r], HealthBar v1.7 com.gmail.filoghost.healthbar.Main [filoghost], iControlU v1.5.1 me.firebreath15.icontrolu.iControlU [], PermissionsEx v1.20.3 ru.tehkode.permissions.bukkit.PermissionsEx [[t3hk0d3, zml]], LWC v4.4.0 (b886) (August 26, 2013) com.griefcraft.lwc.LWCPlugin [Hidendra], Prism v1.6.6 me.botsko.prism.Prism [viveleroi], WorldGuard v5.8 com.sk89q.worldguard.bukkit.WorldGuardPlugin [], dynmap v1.9-853 org.dynmap.bukkit.DynmapPlugin [mikeprimm], PreciousStones v9.6.1-SNAPSHOT net.sacredlabyrinth.Phaed.PreciousStones.PreciousStones [Phaed], ProtocolLib v2.7.0 com.comphenix.protocol.ProtocolLibrary [Comphenix], Skillz v5.8 nl.lolmen.Skillz.Skillz [Lolmewn], afkTerminator v1.6.0 me.edge209.afkTerminator.AfkTerminator [Edge209], Essentials v2.12.1 com.earth2me.essentials.Essentials [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits, md_5, Iaccidentally], MyHorse v0.2.2 com.dogonfire.myhorse.MyHorse [DogOnFire], MagicCarpet v2.3.2 net.digiex.magiccarpet.MagicCarpet [Android, Celtic Minstrel, xzKinGzxBuRnzx], WorldBorder v1.7.5 com.wimbli.WorldBorder.WorldBorder [Brettflan], QuickShop v4.4 org.maxgamer.QuickShop.QuickShop [Netherfoam], Orebfuscator v1.9.7 com.lishid.orebfuscator.Orebfuscator [lishid], EssentialsSpawn v2.12.1 com.earth2me.essentials.spawn.EssentialsSpawn [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits], TagAPI v2.6 org.kitteh.tag.TagAPI [mbaxter], NameTags v2.2 org.kitteh.nametags.NameTags [mbaxter], EssentialsGeoIP v2.12.1 com.earth2me.essentials.geoip.EssentialsGeoIP [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology], VanishNoPacket v3.18.3 org.kitteh.vanish.VanishPlugin [mbaxter], DisguiseCraft v5.0 pgDev.bukkit.DisguiseCraft.DisguiseCraft [PG Dev Team, Tux2, DrKabob, Devil Boy], OnTime v3.9.1 me.edge209.OnTime.OnTime [Edge209], CraftBook v3.7-SNAPSHOT:3243-28672b8,master com.sk89q.craftbook.bukkit.CraftBookPlugin [], EssentialsChat v2.12.1 com.earth2me.essentials.chat.EssentialsChat [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits, md_5, Okamosy, Iaccidentally], ChatTweaks v2.7.1 com.novixcraft.plugins.chattweaks.ChatTweaks [Zacky1],} Warnings: DEFAULT Threads: { WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:503), java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)], RUNNABLE Signal Dispatcher: [], RUNNABLE Listen thread: [java.net.DualStackPlainSocketImpl.accept0(Native Method), java.net.DualStackPlainSocketImpl.socketAccept(Unknown Source), java.net.AbstractPlainSocketImpl.accept(Unknown Source), java.net.PlainSocketImpl.accept(Unknown Source), java.net.ServerSocket.implAccept(Unknown Source), java.net.ServerSocket.accept(Unknown Source), net.minecraft.server.v1_6_R3.DedicatedServerConnectionThread.run(DedicatedServerConnectionThread.java:59)], RUNNABLE DestroyJavaVM: [], TIMED_WAITING Thread-9: [java.lang.Thread.sleep(Native Method), com.griefcraft.modules.credits.CreditsModule$CreditsTask.run(CreditsModule.java:110), java.lang.Thread.run(Unknown Source)], TIMED_WAITING Keep-Alive-Timer: [java.lang.Thread.sleep(Native Method), sun.net.www.http.KeepAliveCache.run(Unknown Source), 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)], RUNNABLE Attach Listener: [], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Unknown Source), org.bukkit.craftbukkit.v1_6_R3.CraftCrashReport.call(CraftCrashReport.java:28), net.minecraft.server.v1_6_R3.CrashReportSystemDetails.a(SourceFile:74), net.minecraft.server.v1_6_R3.CrashReport.h(CrashReport.java:41), net.minecraft.server.v1_6_R3.CrashReport.<init>(CrashReport.java:28), net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:438), net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)], 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)], WAITING PermissionsEx-Cleaner: [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)], TIMED_WAITING Thread-8: [java.lang.Thread.sleep(Native Method), com.griefcraft.util.DatabaseThread.run(DatabaseThread.java:181), java.lang.Thread.run(Unknown Source)], TIMED_WAITING Thread-4: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_6_R3.ThreadSleepForever.run(SourceFile:64)], RUNNABLE Thread-5: [org.fusesource.jansi.internal.Kernel32._getch(Native Method), org.fusesource.jansi.internal.WindowsSupport.readByte(WindowsSupport.java:46), org.bukkit.craftbukkit.libs.jline.WindowsTerminal.readByte(WindowsTerminal.java:184), org.bukkit.craftbukkit.libs.jline.WindowsTerminal.access$000(WindowsTerminal.java:53), org.bukkit.craftbukkit.libs.jline.WindowsTerminal$1.read(WindowsTerminal.java:151), 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.readLine(ConsoleReader.java:1167), net.minecraft.server.v1_6_R3.ThreadCommandReader.run(ThreadCommandReader.java:31)],} Recent tasks from -31--1{} Profiler Position: N/A (disabled) Player Count: 0 / 3; [] Is Modded: Definitely; Server brand changed to 'craftbukkit' Type: Dedicated Server (map_server.txt)
Currently it's just a folder called "Bukkit" on my desktop, and the world folder is the default "world"
I suppose there's a possibility, but this happened on my old test world too (switched to building world now), and it also doesn't quite explain why only crashes occasionally on startup and not every time.
Bump~ Still appears to be a problem, yet I cannot figure out what is causing it. http://pastebin.com/VzKi85EP