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

Time: 28.10.15 20:16
Description: Starting integrated server

java.lang.IllegalAccessError: tried to access class lj from class net.minecraft.server.MinecraftServer
	at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:741)
	at bao.a(SourceFile:1611)
	at bdb.a(SourceFile:202)
	at bdw.a(SourceFile:172)
	at bdb.a(SourceFile:301)
	at bdw.k(SourceFile:232)
	at bdw.p(SourceFile:211)
	at bao.p(SourceFile:1328)
	at bao.ak(SourceFile:774)
	at bao.f(SourceFile:728)
	at net.minecraft.client.main.Main.main(SourceFile:148)


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

-- Head --
Stacktrace:
	at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:741)

-- Starting integrated server --
Details:
	Level ID: New World---
	Level Name: New World
Stacktrace:
	at bao.a(SourceFile:1611)
	at bdb.a(SourceFile:202)
	at bdw.a(SourceFile:172)
	at bdb.a(SourceFile:301)
	at bdw.k(SourceFile:232)
	at bdw.p(SourceFile:211)

-- Affected screen --
Details:
	Screen name: bee
Stacktrace:
	at bao.p(SourceFile:1328)
	at bao.ak(SourceFile:774)
	at bao.f(SourceFile:728)
	at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_65, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 147224424 bytes (140 MB) / 187957248 bytes (179 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.7.10_test
	LWJGL: 2.9.1
	OpenGL: GeForce GTX 970/PCIe/SSE2 GL version 4.5.0 NVIDIA 353.06, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)