---- Minecraft Crash Report ---- // Quite honestly, I wouldn't worry myself about that. Time: 1/24/14 7:37 PM Description: Starting integrated server java.lang.ExceptionInInitializerError at net.minecraft.server.MinecraftServer.<init>(SourceFile:113) at btk.<init>(SourceFile:38) at azi.a(SourceFile:1590) at bcm.e(SourceFile:162) at bcm.a(SourceFile:127) at bcl.a(SourceFile:172) at bcl.d(SourceFile:232) at bcl.k(SourceFile:211) at azi.p(SourceFile:1308) at azi.ah(SourceFile:760) at azi.f(SourceFile:711) at net.minecraft.client.main.Main.main(SourceFile:152) Caused by: java.lang.IllegalStateException: failed to create a child event loop at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:61) at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61) at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52) at mv.<clinit>(SourceFile:31) ... 12 more Caused by: io.netty.channel.ChannelException: failed to open a new selector at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128) at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120) at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87) at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57) ... 16 more Caused by: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.nio.ch.PipeImpl.<init>(Unknown Source) at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source) at java.nio.channels.Pipe.open(Unknown Source) at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source) at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source) at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126) ... 19 more Caused by: java.net.ConnectException: Connection refused: connect at sun.nio.ch.Net.connect(Native Method) at sun.nio.ch.SocketChannelImpl.connect(Unknown Source) at java.nio.channels.SocketChannel.open(Unknown Source) ... 27 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at net.minecraft.server.MinecraftServer.<init>(SourceFile:113) at btk.<init>(SourceFile:38) -- Starting integrated server -- Details: Level ID: Copy of 172 Level Name: Copy of 172 Stacktrace: at azi.a(SourceFile:1590) at bcm.e(SourceFile:162) at bcm.a(SourceFile:127) at bcl.a(SourceFile:172) at bcl.d(SourceFile:232) at bcl.k(SourceFile:211) -- Affected screen -- Details: Screen name: bct Stacktrace: at azi.p(SourceFile:1308) at azi.ah(SourceFile:760) at azi.f(SourceFile:711) at net.minecraft.client.main.Main.main(SourceFile:152) -- System Details -- Details: Minecraft Version: 1.7.4 Operating System: Windows NT (unknown) (amd64) version 6.2 Java Version: 1.6.0_23, Sun Microsystems Inc. Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc. Memory: 238480960 bytes (227 MB) / 275972096 bytes (263 MB) up to 954466304 bytes (910 MB) JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G 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: 1.7.4 LWJGL: 2.9.1 OpenGL: Intel(R) HD Graphics GL version 2.1.0 - Build 8.15.10.2900, Intel GL Caps: Using GL 1.3 multitexturing. Using framebuffer objects because ARB_framebuffer_object 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: 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) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null Anisotropic Filtering: Off (1)