C:\FTB\FTB Lite>java -Xms1024m -Xmx2048m -XX:PermSize=128m -jar FTBServer-1.6.4-
965.jar nogui
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; suppor
t was removed in 8.0
Dec 16, 2014 10:41:27 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
Dec 16, 2014 10:41:28 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweak
er
Dec 16, 2014 10:41:28 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
2014-12-16 10:41:28 [INFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965
for Minecraft 1.6.4 loading
2014-12-16 10:41:28 [INFO] [ForgeModLoader] Java is Java HotSpot(TM) 64-Bit Serv
er VM, version 1.8.0_25, running on Windows 7:amd64:6.1, installed at C:\Program
 Files\Java\jre1.8.0_25
2014-12-16 10:41:28 [WARNING] [ForgeModLoader] The coremod net.minecraftforge.le
x.sortfix.CorePlugin does not have a MCVersion annotation, it may cause issues w
ith this version of Minecraft
2014-12-16 10:41:28 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
 version of Minecraft
2014-12-16 10:41:28 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issu
es with this version of Minecraft
2014-12-16 10:41:29 [INFO] [STDERR] Warning: version of ForgeMultipart-universal
-1.6.4-, 1.0.0.227 is newer than request 1.0.0.219
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugi
n does not have a MCVersion annotation, it may cause issues with this version of
 Minecraft
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod mcp.mobius.evoc.asm.C
oreDescription does not have a MCVersion annotation, it may cause issues with th
is version of Minecraft
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod mcp.mobius.mobiuscore
.asm.CoreDescription does not have a MCVersion annotation, it may cause issues w
ith this version of Minecraft
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.N
EICorePlugin does not have a MCVersion annotation, it may cause issues with this
 version of Minecraft
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod openblocks.OpenBlocks
CorePlugin does not have a MCVersion annotation, it may cause issues with this v
ersion of Minecraft
2014-12-16 10:41:29 [WARNING] [ForgeModLoader] The coremod openmods.OpenModsCore
Plugin does not have a MCVersion annotation, it may cause issues with this versi
on of Minecraft
2014-12-16 10:41:29 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLInjectionAndSortingTweaker
2014-12-16 10:41:29 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLDeobfTweaker
2014-12-16 10:41:29 [INFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.com
mon.launcher.FMLInjectionAndSortingTweaker
2014-12-16 10:41:29 [SEVERE] [ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException
        at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
        at java.util.ArrayList$Itr.remove(Unknown Source)
        at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.j
ava:48)
        at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.
java:17)

C:\FTB\FTB Lite>pause
Press any key to continue . . .