Client> jul 20, 2013 5:47:39 PM net.minecraft.launchwrapper.LogWrapper log
Client> INFO: Using tweak class name cpw.mods.fml.common.launcher.FMLTweaker
Client> 2013-07-20 17:47:39 [INFO] [ForgeModLoader] Forge Mod Loader version 6.2.19.789 for Minecraft 1.6.2 loading
Client> 2013-07-20 17:47:39 [INFO] [ForgeModLoader] Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_21, running on Windows 8:amd64:6.2, installed at C:\Program Files\Java\jre7
Client> 2013-07-20 17:47:39 [INFO] [STDOUT] Loaded 39 rules from AccessTransformer config file fml_at.cfg
Client> 2013-07-20 17:47:39 [INFO] [STDOUT] Loaded 107 rules from AccessTransformer config file forge_at.cfg
Client> 2013-07-20 17:47:40 [INFO] [ForgeModLoader] Found valid fingerprint for Minecraft Forge. Certificate fingerprint de4cf8a3f3bc15635810044c39240bf96804ea7d
Client> 2013-07-20 17:47:40 [SEVERE] [ForgeModLoader] The minecraft jar file:/C:/Users/nessi_000/AppData/Roaming/.minecraft/versions/1.6.2-Forge9.10.0.789/1.6.2-Forge9.10.0.789.jar!/net/minecraft/server/MinecraftServer.class appears to be corrupt! There has been CRITICAL TAMPERING WITH MINECRAFT, it is highly unlikely minecraft will work! STOP NOW, get a clean copy and try again!
Client> 2013-07-20 17:47:40 [SEVERE] [ForgeModLoader] For your safety, FML will not launch minecraft. You will need to fetch a clean version of the minecraft jar file
Game ended with bad state (exit code 1)
Ignoring visibility rule and showing launcher due to a game crash
Deleting C:\Users\nessi_000\AppData\Roaming\.minecraft\versions\1.6.2-Forge9.10.0.789\1.6.2-Forge9.10.0.789-natives-771202820642168