---- Minecraft Crash Report ----
// Oops.

Time: 6/4/19 1:36 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
	at vg.a(SourceFile:1031)
	at bhj.a(SourceFile:234)
	at bvf.a(SourceFile:366)
	at bvf.a(SourceFile:237)
	at bvl.a(SourceFile:241)
	at vg.a(SourceFile:1091)
	at vg.ae(SourceFile:1082)
	at vg.a(SourceFile:333)
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at ug.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:813)


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
	at vg.a(SourceFile:1031)
	at bhj.a(SourceFile:234)
	at bvf.a(SourceFile:366)
	at bvf.a(SourceFile:237)
	at bvl.a(SourceFile:241)
	at vg.a(SourceFile:1091)
	at vg.ae(SourceFile:1082)
	at vg.a(SourceFile:333)

-- Affected level --
Details:
	Level name: world
	All players: 2 total; [vh['MeWasabi'/375062, l='world', x=521.84, y=77.00, z=238.22], vh['Zac____'/379358, l='world', x=2073.77, y=84.00, z=-699.69]]
	Chunk stats: ServerChunkCache: 4647
	Level seed: -3974131276856968711
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (224,63,-15), Chunk: (at 0,3,1 in 14,-1; contains blocks 224,0,-16 to 239,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 64607305 game time, 48605002 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 59734 (now: false), thunder time: 20790 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at ug.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:813)

-- System Details --
Details:
	Minecraft Version: 1.14.3 Pre-Release 1
	Operating System: Linux (amd64) version 4.15.0-43-generic
	Java Version: 1.8.0_212, Eclipse OpenJ9
	Java VM Version: Eclipse OpenJ9 VM (JRE 1.8.0 Linux amd64-64-Bit Compressed References 20190417_286 (JIT enabled, AOT enabled)
OpenJ9   - bad1d4d06
OMR      - 4a4278e6
JCL      - 5590c4f818 based on jdk8u212-b03), Eclipse OpenJ9
	Memory: 526401432 bytes (502 MB) / 1118568448 bytes (1066 MB) up to 3221225472 bytes (3072 MB)
	JVM Flags: 9 total; -Xoptionsfile=/pro/bin/java/java8-openj9/lib/amd64/compressedrefs/options.default -Xlockword:mode=default,noLockword=java/lang/String,noLockword=java/util/MapEntry,noLockword=java/util/HashMap$Entry,noLockword=org/apache/harmony/luni/util/ModifiedMap$Entry,noLockword=java/util/Hashtable$Entry,noLockword=java/lang/invoke/MethodType,noLockword=java/lang/invoke/MethodHandle,noLockword=java/lang/invoke/CollectHandle,noLockword=java/lang/invoke/ConstructorHandle,noLockword=java/lang/invoke/ConvertHandle,noLockword=java/lang/invoke/ArgumentConversionHandle,noLockword=java/lang/invoke/AsTypeHandle,noLockword=java/lang/invoke/ExplicitCastHandle,noLockword=java/lang/invoke/FilterReturnHandle,noLockword=java/lang/invoke/DirectHandle,noLockword=java/lang/invoke/ReceiverBoundHandle,noLockword=java/lang/invoke/DynamicInvokerHandle,noLockword=java/lang/invoke/FieldHandle,noLockword=java/lang/invoke/FieldGetterHandle,noLockword=java/lang/invoke/FieldSetterHandle,noLockword=java/lang/invoke/StaticFieldGetterHandle,noLockword=java/lang/invoke/StaticFieldSetterHandle,noLockword=java/lang/invoke/IndirectHandle,noLockword=java/lang/invoke/InterfaceHandle,noLockword=java/lang/invoke/VirtualHandle,noLockword=java/lang/invoke/PrimitiveHandle,noLockword=java/lang/invoke/InvokeExactHandle,noLockword=java/lang/invoke/InvokeGenericHandle,noLockword=java/lang/invoke/VarargsCollectorHandle,noLockword=java/lang/invoke/ThunkTuple -Xjcl:jclse29 -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=4 -Xms1024M -Xmx3072M -XX:-UsePerfData
	Player Count: 2 / 10; [vh['MeWasabi'/375062, l='world', x=521.84, y=77.00, z=238.22], vh['Zac____'/379358, l='world', x=2073.77, y=84.00, z=-699.69]]
	Data Packs: vanilla, file/bukkit (incompatible)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)