---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 7/3/18 10:57 AM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at bta.<init>(SourceFile:13)
	at btb.b(SourceFile:313)
	at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.util.Iterator.forEachRemaining(Unknown Source)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)
	at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
	at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.util.stream.ReferencePipeline.collect(Unknown Source)
	at btb.a(SourceFile:314)
	at bnd.n(SourceFile:81)
	at sx.p(SourceFile:591)
	at sx.<init>(SourceFile:129)
	at dej.a(SourceFile:97)
	at dej.d(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:505)
	at java.lang.Thread.run(Unknown Source)


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

-- System Details --
Details:
	Minecraft Version: 1.13-pre5
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_151, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1319063696 bytes (1257 MB) / 1720713216 bytes (1641 MB) up to 3817865216 bytes (3641 MB)
	JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms512m -Xmx4096m
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.