Voltz server won't start up

[GiantCaller]

So today, I tried to start a private Voltz server so I can play with my friends. However, when I tried running the batch file, it gave me some text, then stopped at "Press any key to continue." If I pressed something, the command screen closes. The batch also spawned this note with the following in it:

 

2014-08-25 22:34:34 [iNFO] [ForgeModLoader] Forge Mod Loader version 5.2.23.737 for Minecraft 1.5.2 loading
2014-08-25 22:34:34 [iNFO] [ForgeModLoader] Java is Java HotSpot 64-Bit Server VM, version 1.8.0_11, running on Windows 8.1:amd64:6.3, installed at C:Program FilesJavajre8
2014-08-25 22:34:34 [FINE] [ForgeModLoader] Java classpath at launch is Voltz.jar
2014-08-25 22:34:34 [FINE] [ForgeModLoader] Java library path at launch is C:WINDOWSsystem32;C:WINDOWSSunJavabin;C:WINDOWSsystem32;C:WINDOWS;C:Program Files (x86)NVIDIA CorporationPhysXCommon;c:Program Files (x86)InteliCLS Client;c:Program FilesInteliCLS Client;C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;C:WINDOWSSystem32WindowsPowerShellv1.0;C:Program FilesIntelIntel® Management Engine ComponentsDAL;C:Program FilesIntelIntel® Management Engine ComponentsIPT;C:Program Files (x86)IntelIntel® Management Engine ComponentsDAL;C:Program Files (x86)IntelIntel® Management Engine ComponentsIPT;C:Program Files (x86)IntelOpenCL SDK2.0binx86;C:Program Files (x86)IntelOpenCL SDK2.0binx64;C:Program Files (x86)Windows LiveShared;.
2014-08-25 22:34:34 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2014-08-25 22:34:34 [WARNING] [ForgeModLoader] The coremod codechicken.core.asm.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2014-08-25 22:34:34 [WARNING] [ForgeModLoader] The coremod cofh.asm.CoFHPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2014-08-25 22:34:34 [WARNING] [ForgeModLoader] The coremod micdoodle8.mods.galacticraft.asm.GalacticraftPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2014-08-25 22:34:34 [WARNING] [ForgeModLoader] The coremod mods.immibis.microblocks.coremod.MicroblocksCoreMod does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2014-08-25 22:34:34 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.NEICorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2014-08-25 22:34:34 [FINE] [ForgeModLoader] The coremod powercrystals.core.CoreLoader requested minecraft version 1.5.2 and minecraft is 1.5.2. It will be loaded.
2014-08-25 22:34:34 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] There was a problem downloading the file bcprov-jdk15on-148.jar automatically. Perhaps you have an environment without internet access. You will need to download the file manually or restart and let it try again

2014-08-25 22:34:34 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] There was a problem downloading the file scala-library.jar automatically. Perhaps you have an environment without internet access. You will need to download the file manually or restart and let it try again

2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] There were errors during initial FML setup. Some files failed to download or were otherwise corrupted. You will need to manually obtain the following files from these download links and ensure your lib directory is clean.
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.2.zip
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/scala-library.jar
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] <===========>
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] The following is the errors that caused the setup to fail. They may help you diagnose and resolve the issue
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] A download error occured
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] A download error occured
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] <<< ==== >>>
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] The following is diagnostic information for developers to review.
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] Error details
java.lang.RuntimeException: A download error occured
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:548)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:165)
    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)
    at cpw.mods.fml.relauncher.FMLRelauncher.relaunchServer(FMLRelauncher.java:147)
    at cpw.mods.fml.relauncher.FMLRelauncher.handleServerRelaunch(FMLRelauncher.java:45)
    at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1367)
Caused by: java.io.FileNotFoundException: http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:532)
    ... 5 more
Caused by: java.io.FileNotFoundException: http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
    at java.net.URLConnection.getHeaderFieldLong(Unknown Source)
    at java.net.URLConnection.getContentLengthLong(Unknown Source)
    at java.net.URLConnection.getContentLength(Unknown Source)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:531)
    ... 5 more
2014-08-25 22:34:34 [sEVERE] [ForgeModLoader] Error details
java.lang.RuntimeException: A download error occured
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:548)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:165)
    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)
    at cpw.mods.fml.relauncher.FMLRelauncher.relaunchServer(FMLRelauncher.java:147)
    at cpw.mods.fml.relauncher.FMLRelauncher.handleServerRelaunch(FMLRelauncher.java:45)
    at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1367)
Caused by: java.io.FileNotFoundException: http://files.minecraftforge.net/fmllibs/scala-library.jar
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:532)
    ... 5 more
Caused by: java.io.FileNotFoundException: http://files.minecraftforge.net/fmllibs/scala-library.jar
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
    at java.net.URLConnection.getHeaderFieldLong(Unknown Source)
    at java.net.URLConnection.getContentLengthLong(Unknown Source)
    at java.net.URLConnection.getContentLength(Unknown Source)
    at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:531)
    ... 5 more
2014-08-25 22:34:34 [iNFO] [sTDERR] Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: A fatal error occured and FML cannot continue
2014-08-25 22:34:34 [iNFO] [sTDERR]     at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:192)
2014-08-25 22:34:34 [iNFO] [sTDERR]     at cpw.mods.fml.relauncher.FMLRelauncher.relaunchServer(FMLRelauncher.java:147)
2014-08-25 22:34:34 [iNFO] [sTDERR]     at cpw.mods.fml.relauncher.FMLRelauncher.handleServerRelaunch(FMLRelauncher.java:45)
2014-08-25 22:34:34 [iNFO] [sTDERR]     at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1367)
2014-08-25 22:34:34 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: A fatal error occured and FML cannot continue
2014-08-25 22:34:34 [iNFO] [sTDERR]     at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:261)
2014-08-25 22:34:34 [iNFO] [sTDERR]     at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)
2014-08-25 22:34:34 [iNFO] [sTDERR]     ... 3 more
 

A similar thing happened on my Attack of the B team server set up, where I needed to get the right Java, but the same doesn't work for this, so I don't know how to fix this. Anyone know?

 

[Mr_Industry]

"...does not have a MCVersion annotation, it may cause issues with this version of Minecraft"

I'm having the same error message with the Big Dig Mod Pack. I'll let you know If I find anything.

Edited September 7, 2014 by Mr_Industry

[Kalbintion]

That message can be ignored, and isnt the issue. Issues belong on the tracker, link at top of page.

[Mr_Industry]

This is a warning that a few days ago, a Java update versioned 1.8.0_20 was released, which currently makes it impossible to play modded Minecraft.  The release fixed a Java bug which was hiding a bug in Forge Modloader- users with this new version of java will now receive a ConcurrentModificationException when trying to load modpacks in Minecraft 1.6+.

Forge is currently working to correct this issue, but in the meantime, we advise that you do not update your Java version to 1.8.0_20.  We instead recommend that you use one of the following versions:

Java 1.7.0_67- we highly recommend that you downgrade to this version, because it is security complete: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

Java 1.8.0_11- if you need to stay on java 1.8, this is the latest version without the listed issue.  Again, there may be security updates in 1.8.0_20 not present in this version, so please use with care:  http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html

Technic posted this 17 days ago.

This didn't fix my problem but it worked for some other people.

Edited September 7, 2014 by Mr_Industry

[Kalbintion]

Or you couldve just linked the actual news article: http://www.technicpack.net/article/view/concurrentmodificationexception-in-java-18020.89 - no need to copy/paste the content

[Munaus]

report these threads, guys. All technical issues belong in the Tracker