---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 10/11/15 8:46 PM
Description: Watching Server

java.lang.Error
	at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:1177)
	at java.util.Collections$SetFromMap.remove(Collections.java:3902)
	at lp.b(SourceFile:66)
	at lp.c(SourceFile:73)
	at lp.d(SourceFile:91)
	at ahn.a(SourceFile:298)
	at ahn.f(SourceFile:294)
	at ahn.b(SourceFile:624)
	at ahn.c(SourceFile:2124)
	at ahn.w(SourceFile:2068)
	at arw.e(SourceFile:1081)
	at arw.o(SourceFile:1014)
	at arw.b(SourceFile:841)
	at lq.j(SourceFile:372)
	at lq.d(SourceFile:218)
	at net.minecraft.server.MinecraftServer.D(SourceFile:610)
	at lb.D(SourceFile:314)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)
	at net.minecraft.server.MinecraftServer.run(SourceFile:450)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Stacktrace:
	at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:1177)
	at java.util.Collections$SetFromMap.remove(Collections.java:3902)
	at lp.b(SourceFile:66)
	at lp.c(SourceFile:73)
	at lp.d(SourceFile:91)
	at ahn.a(SourceFile:298)
	at ahn.f(SourceFile:294)
	at ahn.b(SourceFile:624)
	at ahn.c(SourceFile:2124)
	at ahn.w(SourceFile:2068)
	at arw.e(SourceFile:1081)
	at arw.o(SourceFile:1014)
	at arw.b(SourceFile:841)
	at lq.j(SourceFile:372)
	at lq.d(SourceFile:218)
	at net.minecraft.server.MinecraftServer.D(SourceFile:610)
	at lb.D(SourceFile:314)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)

-- Thread Dump --
Details:
	Threads: "Netty Epoll Server IO #3" Id=21 RUNNABLE (in native)
	at io.netty.channel.epoll.Native.epollWait(Native Method)
	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at java.lang.Thread.run(Thread.java:745)


"Netty Epoll Server IO #2" Id=20 RUNNABLE (in native)
	at io.netty.channel.epoll.Native.epollWait(Native Method)
	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at java.lang.Thread.run(Thread.java:745)


"File IO Thread" Id=28 TIMED_WAITING
	at java.lang.Thread.sleep(Native Method)
	at bax.c(SourceFile:51)
	at bax.run(SourceFile:30)
	at java.lang.Thread.run(Thread.java:745)


"Netty Epoll Server IO #1" Id=19 RUNNABLE (in native)
	at io.netty.channel.epoll.Native.epollWait(Native Method)
	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at java.lang.Thread.run(Thread.java:745)


"Server Watchdog" Id=23 RUNNABLE
	at sun.management.ThreadImpl.dumpThreads0(Native Method)
	at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:446)
	at lc.run(SourceFile:43)
	at java.lang.Thread.run(Thread.java:745)


"Netty Epoll Server IO #0" Id=18 RUNNABLE (in native)
	at io.netty.channel.epoll.Native.epollWait(Native Method)
	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at java.lang.Thread.run(Thread.java:745)


"Server console handler" Id=15 RUNNABLE (in native)
	at java.io.FileInputStream.readBytes(Native Method)
	at java.io.FileInputStream.read(FileInputStream.java:272)
	at java.io.BufferedInputStream.read1(BufferedInputStream.java:273)
	at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
	-  locked java.io.BufferedInputStream@282161ee
	at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
	-  locked java.io.InputStreamReader@19d87396
	at java.io.InputStreamReader.read(InputStreamReader.java:184)
	...


"DestroyJavaVM" Id=14 RUNNABLE


"Server thread" Id=12 RUNNABLE
	at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:1177)
	at java.util.Collections$SetFromMap.remove(Collections.java:3902)
	at lp.b(SourceFile:66)
	at lp.c(SourceFile:73)
	at lp.d(SourceFile:91)
	at ahn.a(SourceFile:298)
	at ahn.f(SourceFile:294)
	at ahn.b(SourceFile:624)
	...


"Server Infinisleeper" Id=11 TIMED_WAITING
	at java.lang.Thread.sleep(Native Method)
	at lb$1.run(SourceFile:77)


"Snooper Timer" Id=10 TIMED_WAITING on java.util.TaskQueue@518c8a1b
	at java.lang.Object.wait(Native Method)
	-  waiting on java.util.TaskQueue@518c8a1b
	at java.util.TimerThread.mainLoop(Timer.java:552)
	at java.util.TimerThread.run(Timer.java:505)


"Signal Dispatcher" Id=4 RUNNABLE


"Finalizer" Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@61bf1c70
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.ReferenceQueue$Lock@61bf1c70
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)


"Reference Handler" Id=2 WAITING on java.lang.ref.Reference$Lock@49e42f32
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.Reference$Lock@49e42f32
	at java.lang.Object.wait(Object.java:503)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)



Stacktrace:
	at lc.run(SourceFile:59)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 15w45a
	Operating System: Linux (amd64) version 3.16.0-30-generic
	Java Version: 1.7.0_79, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 597700040 bytes (570 MB) / 792199168 bytes (755 MB) up to 3340763136 bytes (3186 MB)
	JVM Flags: 2 total; -Xmx3584M -XX:MaxPermSize=256M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 20; [ls['Vinadi'/582, l='world', x=432.45, y=13.00, z=884.31]]
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)