Re: Minecraft + Forge crash

Hi Alastair,

Thanks for reporting this. This is an interesting bug. It is caused by a difference in class loading between IKVM and the JDK, the JDK is very lazy whereas IKVM is very eager. In this case the custom class loader tries to use a class that is still being loaded (indirectly) and that causes infinite recursion.

I have some ideas on how to fix this (or rather, work around the problem), but it will take a while to implement.

Thanks,
Jeroen

> -----Original Message-----
> From: Alastair Barnes [mailto:[email protected]]
> Sent: Thursday, February 26, 2015 17:25
> To: [email protected]
> Subject: [Ikvm-developers] Minecraft + Forge crash
> 
> Hello
> 
> I recently discovered your post on being able to run minecraft on
> IKVM.NET, and having tried it myself (using ikvm-8.0.5449.1), was
> reasonable impressed.
> 
> I then attempted to run a minecraft instance with forge installed
> (http://files.minecraftforge.net/, 1.7.10-Recommended) and encountered a
> stack overflow exception on launch. (on the plus side, the installer
> seems to work fine).
> (Console log below, not sure how useful it will be).
> 
> Unsupported option ignored: -
> XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecra
> ft.exe.heapdump
> Unsupported option ignored: -Xmx1G
> Unsupported option ignored: -XX:+UseConcMarkSweepGC Unsupported option
> ignored: -XX:+CMSIncrementalMode Unsupported option ignored: -XX:-
> UseAdaptiveSizePolicy Unsupported option ignored: -Xmn128M [16:07:35]
> [main/INFO] [LaunchWrapper]: Loading tweak class name
> cpw.mods.fml.common.launcher.FMLTweaker
> [16:07:36] [main/INFO] [LaunchWrapper]: Using primary tweak class name
> cpw.mods.fml.common.launcher.FMLTweaker
> [16:07:36] [main/INFO] [LaunchWrapper]: Calling tweak class
> cpw.mods.fml.common.launcher.FMLTweaker
> [16:07:37] [main/INFO] [FML]: Forge Mod Loader version 7.10.85.1291 for
> Minecraft 1.7.10 loading [16:07:37] [main/INFO] [FML]: Java is IKVM.NET,
> version 1.8.0, running on Windows 7:amd64:6.1, installed at C:\.virtual-
> ikvm-home [16:07:37] [main/INFO] [LaunchWrapper]: Loading tweak class
> name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
> [16:07:37] [main/INFO] [LaunchWrapper]: Loading tweak class name
> cpw.mods.fml.common.launcher.FMLDeobfTweaker
> [16:07:37] [main/INFO] [LaunchWrapper]: Calling tweak class
> cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
> [16:07:37] [main/INFO] [LaunchWrapper]: Calling tweak class
> cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
> [16:07:37] [main/INFO] [LaunchWrapper]: Calling tweak class
> cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
> 
> Process is terminated due to StackOverflowException.

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