---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 28/11/2019 11:42 μμ
Description: Server dump

java.lang.Exception: dummy
	at net.minecraft.server.MinecraftServer.c(SourceFile:1661)
	at net.minecraft.server.MinecraftServer.a(SourceFile:1646)
	at to.c(SourceFile:92)
	at to.a(SourceFile:45)
	at to$$Lambda$2380/196721369.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:262)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:176)
	at cr.a(SourceFile:235)
	at xv.c(SourceFile:1078)
	at xv.a(SourceFile:1065)
	at pp.a(SourceFile:36)
	at pp.a(SourceFile:9)
	at lv.a(SourceFile:21)
	at lv$$Lambda$3421/33405311.run(Unknown Source)
	at tb.run(SourceFile:18)
	at aip.h(SourceFile:144)
	at ait.h(SourceFile:23)
	at aip.v(SourceFile:118)
	at net.minecraft.server.MinecraftServer.aZ(SourceFile:724)
	at net.minecraft.server.MinecraftServer.v(SourceFile:718)
	at aip.c(SourceFile:127)
	at net.minecraft.server.MinecraftServer.u(SourceFile:703)
	at net.minecraft.server.MinecraftServer.run(SourceFile:658)
	at java.lang.Thread.run(Thread.java:745)


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

-- System Details --
Details:
	Minecraft Version: 1.15 Pre-release 3
	Minecraft Version ID: 1.15-pre3
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1511765904 bytes (1441 MB) / 4294967296 bytes (4096 MB) up to 8589934592 bytes (8192 MB)
	CPUs: 12
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=64M
	Player Count: 1 / 8; [xe['Kostas_GR'/88, l='New World', x=1257.92, y=109.35, z=2849.32]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.