[1.12.2] --modListFile is being ignored on latest builds.

[dscalzi]

• Verified broken on latest: 1.12.2-14.23.5.2796
• Last known working: 1.12.2-14.23.2.2651

The --modListFile argument is not working on the latest versions.

I can't immediately tell what's wrong in the code, however the same launch args which worked with the older version noted above are no longer working. The mods are not being loaded.

Related: #5207

Seemingly fixed by 8ace535, however changes were reverted in 10dbbf9

[dscalzi]

After some more digging, I found the issue.

The following line needs to be changed from launchArgs to forgeLaunchArgs.

MinecraftForge/src/main/java/net/minecraftforge/fml/relauncher/libraries/ModList.java

Line 66 in 5771c8f

for (String list : new String[] {"mods/mod_list.json", "mods/" + ForgeVersion.mcVersion + "/mod_list.json", ((Map<String, String>)Launch.blackboard.get("launchArgs")).get("--modListFile")})