[MC-95711] Not able to create or join single player worlds

when i try to create or join an existing single player world the game crashes. I could join and create worlds in 1.8.9. here is the crash log:
---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 1/16/16 2:55 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at ahp.a(SourceFile:1174)
	at bnc.h(SourceFile:1604)
	at bnc.a(SourceFile:1180)
	at bnc.b(SourceFile:1165)
	at bnc.a(SourceFile:1012)
	at bcc.au(SourceFile:972)
	at bcc.a(SourceFile:390)
	at net.minecraft.client.main.Main.main(SourceFile:122)


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

-- Head --
Stacktrace:
	at ahp.a(SourceFile:1174)
	at bnc.h(SourceFile:1604)
	at bnc.a(SourceFile:1180)
	at bnc.b(SourceFile:1165)

-- Affected level --
Details:
	Level name: MpServer
	All players: 0 total; []
	Chunk stats: MultiplayerChunkCache: 0, 0
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 0 total; []
	Retry entities: 0 total; []
	Server brand: ~~ERROR~~ NullPointerException: null
	Server type: Integrated singleplayer server
Stacktrace:
	at bkq.a(SourceFile:365)
	at bcc.b(SourceFile:2503)
	at bcc.a(SourceFile:404)
	at net.minecraft.client.main.Main.main(SourceFile:122)

-- System Details --
Details:
	Minecraft Version: 16w02a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 4395283872 bytes (4191 MB) / 5145362432 bytes (4907 MB) up to 5145362432 bytes (4907 MB)
	JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx5120M -Xms5120M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 16w02a
	LWJGL: 2.9.4
	OpenGL: GeForce GTX 750 Ti/PCIe/SSE2 GL version 4.5.0 NVIDIA 358.50, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz