Problème forge

Bonjour ,
J'ai voulu installer optifine et quelques autre mods en 1.7.2
j'ai donc télécharger forge 1.7.2.
Je lance forge sans aucun mods et avec mods ça ne marche pas.
J'avais java 8 , j'ai désinstaller java 8 pour le remplacer par java 7 , ça ne marche toujours pas .
Je clique sur play , minecraft charge , le laucher se ferme , mais aucune fenêtre de minecraft s'ouvre ;(
Comment faire ?

 

Launcher log :

[09:41:10 INFO]: Minecraft Launcher 1.6.5 (through bootstrap 4) started on windows...
[09:41:10 INFO]: Current time is Dec 21, 2014 9:41:10 AM
[09:41:10 INFO]: System.getProperty('os.name') == 'Windows 7'
[09:41:10 INFO]: System.getProperty('os.version') == '6.1'
[09:41:10 INFO]: System.getProperty('os.arch') == 'amd64'
[09:41:10 INFO]: System.getProperty('java.version') == '1.8.0_25'
[09:41:10 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[09:41:10 INFO]: System.getProperty('sun.arch.data.model') == '64'
[09:41:10 INFO]: proxy == DIRECT
[09:41:10 INFO]: JFX is already initialized
[09:41:10 INFO]: Refreshing local version list...
[09:41:10 INFO]: Refreshing remote version list...
[09:41:11 INFO]: Refresh complete.
[09:41:11 INFO]: Loaded 3 profile(s); selected 'Forge'
[09:41:11 INFO]: Refreshing auth...
[09:41:11 INFO]: Logging in with access token
[09:41:32 INFO]: Getting syncinfo for selected version
[09:41:32 INFO]: Queueing library & version downloads
[09:41:32 INFO]: Download job 'Version & Libraries' started (16 threads, 27 files)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[09:41:32 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:33 INFO]: Download job 'Resources' skipped as there are no files to download
[09:41:33 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries'... (try 0)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Attempting to download C:\Users\Giacomo\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)
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:41:33 INFO]: Finished downloading C:\Users\Giacomo\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
[09:41:33 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:01.278)
[09:41:33 INFO]: Launching game
[09:41:33 INFO]: Unpacking natives to C:\Users\Giacomo\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-49339722964557
[09:41:34 INFO]: Reconstructing virtual assets folder at C:\Users\Giacomo\AppData\Roaming\.minecraft\assets\virtual\legacy
[09:41:34 INFO]: Launching in C:\Users\Giacomo\AppData\Roaming\.minecraft
[09:41:34 INFO]: Half command: C:\Users\Giacomo\Desktop\runtime\jre-x64\1.8.0_25\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=C:\Users\Giacomo\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-49339722964557 -cp C:\Users\Giacomo\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\Giacomo\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Giacomo\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147.jar net.minecraft.launchwrapper.Launch
[09:41:34 INFO]: Looking for orphaned versions to clean up...
[09:41:34 INFO]: Looking for old natives & assets to clean up...
[09:41:35 INFO]: Game ended with no troubles detected (exit code 0)
[09:41:35 INFO]: Deleting C:\Users\Giacomo\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-49339722964557

Game output :

[09:41:34] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[09:41:34] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[09:41:34] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[09:41:35] [main/INFO] [FML]: Forge Mod Loader version 7.2.217.1147 for Minecraft 1.7.2 loading
[09:41:35] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 7:amd64:6.1, installed at C:\Users\Giacomo\Desktop\runtime\jre-x64\1.8.0_25
[09:41:35] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[09:41:35] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[09:41:35] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[09:41:35] [main/ERROR] [LaunchWrapper]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) ~[?:1.8.0_25]
at java.util.ArrayList$Itr.remove(ArrayList.java:865) ~[?:1.8.0_25]
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) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

 

Merci !!!!!!!!!!!!!!