HMCL启动器 打开秒退
总之打不开就对了
游戏是论坛内的整合包：帖子
以下是输出日志
[13:00:38] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:00:39] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:00:39] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[13:00:39] [main/INFO] [FML]: Forge Mod Loader version 7.99.40.1614 for Minecraft 1.7.10 loading
[13:00:39] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_65, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre7
[13:00:39] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:00:39] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[13:00:39] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.IncompatibleClassChangeError
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.TimSort.countRunAndMakeAscending(Unknown Source)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.TimSort.sort(Unknown Source)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.TimSort.sort(Unknown Source)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.Arrays.sort(Unknown Source)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.relauncher.CoreModManager.sort(CoreModManager.java)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.relauncher.CoreModManager.sortTweakList(CoreModManager.java)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker.acceptOptions(FMLInjectionAndSortingTweaker.java:33)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
[13:00:39] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

别用java7就学了

补上 JAVA8

输出日志
[13:41:16] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:41:16] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[13:41:16] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[13:41:16] [main/INFO] [FML]: Forge Mod Loader version 7.99.40.1614 for Minecraft 1.7.10 loading
[13:41:16] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_121, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_121
[13:41:17] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:41:17] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[13:41:17] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.IncompatibleClassChangeError
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.TimSort.countRunAndMakeAscending(Unknown Source)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.TimSort.sort(Unknown Source)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at java.util.Arrays.sort(Unknown Source)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.relauncher.CoreModManager.sort(CoreModManager.java)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.relauncher.CoreModManager.sortTweakList(CoreModManager.java)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker.acceptOptions(FMLInjectionAndSortingTweaker.java:33)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
[13:41:17] [main/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:         at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

还是这样的话请咨询下整合包作者。
如果他能开的话，你叫他重新发一份可以用的。
请确定你拿到整合包以后没有进行任何的mod改动，替换，升级等操作。

你重新修改

建议重新下载JAVA