Server stopped responding a few minutes after using command
/summon Ghast ~166 ~70 ~249 {CustomName:blow you up,CustomNameVisible:1,Attributes:[

{Name:generic.maxHealth,Base:100}

,

{Name:generic.movementSpeed,Base:1.0}

,

{Name:generic.attackDamage,Base:48}

,

{Name:generic.followRange,Base:2000}

],NoAI:0,Health:100.0f}

Stack trace shows some problems in processing nbt tags:

[21:25:12] [Spigot Watchdog Thread/ERROR]: The server has stopped responding!
[21:25:12] [Spigot Watchdog Thread/ERROR]: Please report this to http://www.spigotmc.org/
[21:25:12] [Spigot Watchdog Thread/ERROR]: Be sure to include ALL relevant console errors and Minecraft crash reports
[21:25:12] [Spigot Watchdog Thread/ERROR]: Spigot version: git-Spigot-8a048fe-a022dd2 (MC: 1.9.4)
[21:25:12] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:12] [Spigot Watchdog Thread/ERROR]: Server thread dump (Look for plugins here before reporting to Spigot!):
[21:25:12] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:12] [Spigot Watchdog Thread/ERROR]: Current Thread: Server thread
[21:25:12] [Spigot Watchdog Thread/ERROR]: PID: 15 | Suspended: false | Native: false | State: RUNNABLE
[21:25:12] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.util.zip.Inflater.inflateBytes(Native Method)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.util.zip.Inflater.inflate(Inflater.java:259)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.util.zip.InflaterInputStream.read(InflaterInputStream.java:152)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.io.BufferedInputStream.read(BufferedInputStream.java:345)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.io.DataInputStream.readFully(DataInputStream.java:195)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.io.DataInputStream.readFully(DataInputStream.java:169)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagByteArray.load(NBTTagByteArray.java:30)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.a(SourceFile:414)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.load(SourceFile:71)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagList.load(SourceFile:66)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.a(SourceFile:414)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.load(SourceFile:71)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.a(SourceFile:414)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTTagCompound.load(SourceFile:71)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:84)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:53)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:43)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:74)
[21:25:12] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21)
[21:25:12] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1)
[21:25:12] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:336)
[21:25:12] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:295)
[21:25:12] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:16)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:128)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:111)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:107)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.getChunkAt(World.java:329)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkCache.<init>(SourceFile:36)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:109)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.Navigation.a(SourceFile:66)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:89)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:139)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.PathfinderGoalRandomStroll.c(SourceFile:56)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.PathfinderGoalSelector.a(SourceFile:102)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.doTick(EntityInsentient.java:644)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityLiving.n(EntityLiving.java:1928)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.n(EntityInsentient.java:489)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityMonster.n(EntityMonster.java:24)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityBlaze.n(SourceFile:117)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityLiving.m(EntityLiving.java:1784)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.m(EntityInsentient.java:249)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityMonster.m(EntityMonster.java:28)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.entityJoinedWorld(World.java:1617)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.g(World.java:1592)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.tickEntities(World.java:1426)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.WorldServer.tickEntities(WorldServer.java:632)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:797)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665)
[21:25:12] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564)
[21:25:12] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:12] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:12] [Spigot Watchdog Thread/ERROR]: Entire Thread Dump:
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Netty Epoll Server IO #3
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 26 | Suspended: false | Native: false | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.Native.epollWait(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Netty Epoll Server IO #2
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 25 | Suspended: false | Native: false | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.Native.epollWait(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Chunk I/O Executor Thread-1
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 31 | Suspended: false | Native: false | State: WAITING
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: sun.misc.Unsafe.park(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Netty Epoll Server IO #1
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 24 | Suspended: false | Native: false | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.Native.epollWait(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: File IO Thread
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 29 | Suspended: false | Native: false | State: TIMED_WAITING
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.sleep(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.FileIOThread.c(SourceFile:51)
[21:25:20] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.FileIOThread.run(SourceFile:30)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Netty Epoll Server IO #0
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 23 | Suspended: false | Native: false | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.Native.epollWait(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
[21:25:20] [Spigot Watchdog Thread/ERROR]: io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Spigot Metrics Thread
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 22 | Suspended: false | Native: false | State: TIMED_WAITING
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.mainLoop(Timer.java:552)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.run(Timer.java:505)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Spigot Watchdog Thread
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 21 | Suspended: false | Native: false | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: sun.management.ThreadImpl.dumpThreads0(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:454)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.spigotmc.WatchdogThread.run(WatchdogThread.java:76)
[21:25:20] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:20] [Spigot Watchdog Thread/ERROR]: Current Thread: Server console handler
[21:25:20] [Spigot Watchdog Thread/ERROR]: PID: 18 | Suspended: false | Native: true | State: RUNNABLE
[21:25:20] [Spigot Watchdog Thread/ERROR]: Thread is waiting on monitor(s):
[21:25:20] User Authenticator #6/INFO: UUID of player ???? is f198bb33-7b31-364d-b413-5aac6571bada
[21:25:20] [Spigot Watchdog Thread/ERROR]: Locked on:java.io.BufferedInputStream.read(BufferedInputStream.java:265)
[21:25:20] [Spigot Watchdog Thread/ERROR]: Locked on:org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:169)
[21:25:20] [Spigot Watchdog Thread/ERROR]: Locked on:org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:261)
[21:25:20] [Spigot Watchdog Thread/ERROR]: Locked on:org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:198)
[21:25:20] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.io.FileInputStream.readBytes(Native Method)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.io.FileInputStream.read(FileInputStream.java:255)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
[21:25:20] [Spigot Watchdog Thread/ERROR]: java.io.BufferedInputStream.read(BufferedInputStream.java:265)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:169)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:137)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:261)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:198)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:2145)
[21:25:20] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2349)
[21:25:20] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.DedicatedServer$2.run(DedicatedServer.java:81)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Thread-5
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 19 | Suspended: false | Native: false | State: WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: sun.misc.Unsafe.park(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
[21:25:21] [Spigot Watchdog Thread/ERROR]: com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:77)
[21:25:21] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_9_R2.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:27)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: DestroyJavaVM
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 17 | Suspended: false | Native: false | State: RUNNABLE
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Server thread
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 15 | Suspended: false | Native: false | State: RUNNABLE
[21:25:21] [Spigot Watchdog Thread/ERROR]: Thread is waiting on monitor(s):
[21:25:21] [Spigot Watchdog Thread/ERROR]: Locked on:net.minecraft.server.v1_9_R2.RegionFile.chunkExists(RegionFile.java:108)
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.io.RandomAccessFile.read0(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.io.RandomAccessFile.read(RandomAccessFile.java:337)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.io.RandomAccessFile.readInt(RandomAccessFile.java:798)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.RegionFile.chunkExists(RegionFile.java:108)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkRegionLoader.chunkExists(ChunkRegionLoader.java:42)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:123)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:111)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:107)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.getChunkAt(World.java:329)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.ChunkCache.<init>(SourceFile:36)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:109)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.Navigation.a(SourceFile:66)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:89)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.NavigationAbstract.a(SourceFile:139)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.PathfinderGoalRandomStroll.c(SourceFile:56)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.PathfinderGoalSelector.a(SourceFile:102)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.doTick(EntityInsentient.java:644)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityLiving.n(EntityLiving.java:1928)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.n(EntityInsentient.java:489)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityMonster.n(EntityMonster.java:24)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityBlaze.n(SourceFile:117)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityLiving.m(EntityLiving.java:1784)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityInsentient.m(EntityInsentient.java:249)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.EntityMonster.m(EntityMonster.java:28)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.entityJoinedWorld(World.java:1617)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.g(World.java:1592)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.World.tickEntities(World.java:1426)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.WorldServer.tickEntities(WorldServer.java:632)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:797)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Server Infinisleeper
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 16 | Suspended: false | Native: false | State: TIMED_WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.sleep(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: net.minecraft.server.v1_9_R2.DedicatedServer$1.run(DedicatedServer.java:56)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: NonBlockingInputStreamThread
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 13 | Suspended: false | Native: false | State: WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.run(NonBlockingInputStream.java:278)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Snooper Timer
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 11 | Suspended: false | Native: false | State: TIMED_WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.mainLoop(Timer.java:552)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.run(Timer.java:505)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: process reaper
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 8 | Suspended: false | Native: false | State: TIMED_WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: sun.misc.Unsafe.park(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1066)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:745)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Signal Dispatcher
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 4 | Suspended: false | Native: false | State: RUNNABLE
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Finalizer
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 3 | Suspended: false | Native: false | State: WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/ERROR]: Current Thread: Reference Handler
[21:25:21] [Spigot Watchdog Thread/ERROR]: PID: 2 | Suspended: false | Native: false | State: WAITING
[21:25:21] [Spigot Watchdog Thread/ERROR]: Stack:
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Object.java:502)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.ref.Reference.tryHandlePending(Reference.java:191)
[21:25:21] [Spigot Watchdog Thread/ERROR]: java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
[21:25:21] [Spigot Watchdog Thread/ERROR]: ------------------------------
[21:25:21] [Spigot Watchdog Thread/INFO]: Attempting to restart with ./start.sh
[21:25:22] [Spigot Watchdog Thread/INFO]: SDF lost connection: Server is restarting
[21:25:24] [Spigot Watchdog Thread/WARN]: java.util.ConcurrentModificationException
[21:25:24] [Spigot Watchdog Thread/WARN]: at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
[21:25:24] [Spigot Watchdog Thread/WARN]: at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.EntityTracker.untrackEntity(EntityTracker.java:156)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.WorldManager.b(WorldManager.java:27)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.World.c(World.java:1032)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.WorldServer.c(WorldServer.java:1140)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.World.kill(World.java:1068)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.PlayerList.disconnect(PlayerList.java:409)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.PlayerConnection.a(PlayerConnection.java:1059)
[21:25:24] [Spigot Watchdog Thread/WARN]: at net.minecraft.server.v1_9_R2.PlayerConnection.disconnect(PlayerConnection.java:243)
[21:25:24] [Spigot Watchdog Thread/WARN]: at org.spigotmc.RestartCommand.restart(RestartCommand.java:58)
[21:25:24] [Spigot Watchdog Thread/WARN]: at org.spigotmc.RestartCommand.restart(RestartCommand.java:40)
[21:25:24] [Spigot Watchdog Thread/WARN]: at org.spigotmc.WatchdogThread.run(WatchdogThread.java:85)
[21:27:11] [Thread-4/INFO]: Stopping server