The game crashed whilst initializing game Error: java.lang.OutOfMemoryError: Java heap space

Nach einem Java Update (Version 8 Update 191 (Build 1.8.0_191-b12) kommt es beim Start von MineCraft zum Spielabsturz mit folgender Meldung:

The game crashed whilst initializing game
Error: java.lang.OutOfMemoryError: Java heap space 

Hier der Absturzbericht:

Minecraft Crash Report ----
// My bad.

Time: 17.11.18 11:23
Description: Initializing game

java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3332)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:569)
at java.lang.StringBuilder.append(StringBuilder.java:190)
at com.google.gson.stream.JsonReader.nextQuotedValue(JsonReader.java:1014)
at com.google.gson.stream.JsonReader.nextString(JsonReader.java:815)
at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:418)
at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:406)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
at xj.a(SourceFile:509)
at xj.a(SourceFile:517)
at xj.a(SourceFile:532)
at cfw.a(SourceFile:880)
at cfw.<init>(SourceFile:377)
at cft.am(SourceFile:418)
at cft.a(SourceFile:380)
at net.minecraft.client.main.Main.main(SourceFile:144)

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

– Head –
Thread: Client thread
Stacktrace:
at java.util.Arrays.copyOf(Arrays.java:3332)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:569)
at java.lang.StringBuilder.append(StringBuilder.java:190)
at com.google.gson.stream.JsonReader.nextQuotedValue(JsonReader.java:1014)
at com.google.gson.stream.JsonReader.nextString(JsonReader.java:815)
at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:418)
at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:406)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
at xj.a(SourceFile:509)
at xj.a(SourceFile:517)
at xj.a(SourceFile:532)
at cfw.a(SourceFile:880)
at cfw.<init>(SourceFile:377)
at cft.am(SourceFile:418)

– Initialization –
Details:
Stacktrace:
at cft.a(SourceFile:380)
at net.minecraft.client.main.Main.main(SourceFile:144)

– System Details –
Details:
Minecraft Version: 1.13.2
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: 673100504 bytes (641 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 1.13.2
LWJGL: 3.1.6 build 14
OpenGL: NO CONTEXT
GL Caps:
Using VBOs: ~_ERROR~ NullPointerException: null
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: ~_ERROR~ NullPointerException: null
Current Language: ~_ERROR~ NullPointerException: null
Profiler Position: N/A (disabled)
CPU: <unknown>