Minecraft Forums

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

Time: 12/01/14 02:18 AM
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$Initializer.run(Unknown Source)
    at sun.nio.ch.PipeImpl$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.connect0(Native Method)
    at sun.nio.ch.Net.connect(Unknown Source)
    at sun.nio.ch.Net.connect(Unknown Source)
    at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
    at java.nio.channels.SocketChannel.open(Unknown Source)
    ... 28 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: Metropolis
    Level Name: New Metropolis
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 7 (x86) version 6.1
    Java Version: 1.7.0_45, Oracle Corporation
    Java VM Version: Java HotSpot™ Client VM (mixed mode, sharing), Oracle Corporation
    Memory: 43070584 bytes (41 MB) / 77455360 bytes (73 MB) up to 518979584 bytes (494 MB)
    JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
    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: GeForce GT 630/PCIe/SSE2 GL version 4.3.0, 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: Probably not. Jar signature remains and client brand is untouched.
    Type: Client (map_client.txt)
    Resource Packs: []
    Current Language: Español (México)
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
    Anisotropic Filtering: Off (1)

Quote from Novaton

Hi, I'm new here, and I ended up buying Minecraft and then it gives me an error when creating a new world and tells me error MC-34749 , I went to Community IRC support to talk about such a mistake and I got a generic program "HijackThis" had many problems not noted down the fix and hopefully fixed. My pc is not under appeal or slow as they said on the IRC Community, I tried the pirate minecraft and I are going great, I was fired because I had no basis and almost insulting or despaired seeing no response, they threw the AV blames for blocking minecraft, and I took her concerns, and I look forward to write and understand English, I can read well in Spanish.

Any help?