Bug de Forge [1.7.2]

Je poste se message car il est impossible de lancer forge 1.7.2, ma version de java est java 8 update 31 et je suis sous windows 8.1 .
Launcher officiel
Les logs :
[13:41:32 INFO]: Minecraft Launcher 1.5.3 (through bootstrap 5) started on windows...
[13:41:32 INFO]: Current time is Jan 23, 2015 1:41:32 PM
[13:41:32 INFO]: System.getProperty('os.name') == 'Windows 8.1'
[13:41:32 INFO]: System.getProperty('os.version') == '6.3'
[13:41:32 INFO]: System.getProperty('os.arch') == 'x86'
[13:41:32 INFO]: System.getProperty('java.version') == '1.8.0_31'
[13:41:32 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[13:41:32 INFO]: System.getProperty('sun.arch.data.model') == '32'
[13:41:32 INFO]: JFX is already initialized
[13:41:32 INFO]: Refreshing local version list...
[13:41:33 INFO]: Refreshing remote version list...
[13:41:34 INFO]: Refresh complete.
[13:41:34 INFO]: Loaded 2 profile(s); selected 'Forge'
[13:41:34 INFO]: Refreshing auth...
[13:41:34 INFO]: Logging in with access token
[13:41:50 INFO]: Getting syncinfo for selected version
[13:41:50 INFO]: Queueing library & version downloads
[13:41:50 INFO]: Download job 'Version & Libraries' started (16 threads, 27 files)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[13:41:50 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Download job 'Resources' skipped as there are no files to download
[13:41:52 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Attempting to download C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147.jar for job 'Version & Libraries'... (try 0)
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:41:52 INFO]: Finished downloading C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147.jar for job 'Version & Libraries': Couldn't connect to server (responded with 403) but have local file, assuming it's good
[13:41:52 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:02.633)
[13:41:52 INFO]: Launching game
[13:41:52 INFO]: Unpacking natives to C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-783382980859001
[13:41:53 INFO]: Reconstructing virtual assets folder at C:\Users\AnaKTv\AppData\Roaming\.minecraft\assets\virtual\legacy
[13:41:54 INFO]: Launching in C:\Users\AnaKTv\AppData\Roaming\.minecraft
[13:41:54 INFO]: Half command: C:\Program Files (x86)\Java\jre1.8.0_31\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-783382980859001 -cp C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.2-10.12.2.1147\forge-1.7.2-10.12.2.1147.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147.jar net.minecraft.launchwrapper.Launch
[13:41:54 INFO]: Looking for orphaned versions to clean up...
[13:41:56 INFO]: Game ended with no troubles detected (exit code 0)
[13:41:58 INFO]: Looking for old natives & assets to clean up...
[13:41:59 INFO]: Deleting C:\Users\AnaKTv\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-783382980859001

GameOutPut :
[13:41:56] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:41:56] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:41:56] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[13:41:56] [main/INFO] [FML]: Forge Mod Loader version 7.2.217.1147 for Minecraft 1.7.2 loading
[13:41:56] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.8.0_31, running on Windows 8.1:x86:6.3, installed at C:\Program Files (x86)\Java\jre1.8.0_31
[13:41:56] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:41:56] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[13:41:56] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:41:56] [main/ERROR] [LaunchWrapper]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_31]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_31]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:117) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
J'espere avoir une réponse très vite et sur skype si possible : anak.perso1

J'ai déjà essayé le mod la : http://files.minecraftforge.net/LegacyJavaFixer/legacyjavafixer-1.0.jar
Mais sa ne marche pas . Ceux qui auront une réponse pour moi , ajoutez moi sur skype et prévenez que c'est pour ce problème de forge .
Merci , en esperant avoir une réponse très vite .