ConcurrentModificationException on TileAutoCrafter.refreshRecipe
ZornTaov opened this issue ยท 4 comments
Getting this when I log into my world now and I have just one of your autocrafters with the recipes to compress stone, gravel, sand, and dust a single time each. I'm playing on FTB Infinity Evolved 2.4.2 with ProjectRed-1.7.10-4.7.0pre12.95.
This bug would occur when mods try and change the recipe list when the auto-crafter is doing its thing. This SHOULD NOT happen under any circumstances. The ONLY time the recipe list should be changed is during initialization.
I think I have a lead on why this is happening. I'm playing Expert Mode on Infinity Evolved and that changes recipes all over the place, so I'm wondering if it's crashing because minetweaker is changing recipes on world load
I'm getting the same crash as well.
FTB Infinity Evolved v2.5.0
Project Red 1.1.10-4.7.0pre12.95
Singleplayer, expert mode.
Pack downloaded from the FTB launcher.
[edit] Update: this definitely has to do with Expert mode. Switching the world to Normal mode (by deleting \saves\New World\ftb_gamemode.txt) makes the world not crash anymore on entering. (see below) But switching to Expert mode causes the same crash immediately.
As a temporary fix to @ZornTaov and anyone else affected by this bug: delete the aforementioned file, enter your world in Normal mode, break the Project Red crafting tables, and re-enable Expert mode again.
I will investigate if every crafting table causes the crash, or if only certain recipes/combinations of recipes should be avoided.
Alright, after some further testing: the bug doesn't depend on Expert mode or any particular configuration of the crafting table to occur. There are certain circumstances which make the bug occur more frequently (Expert mode, multiple recipes in one crafter), but it is still there even in Normal mode, even on crafters only set to craft one recipe. It seems to be very unpredictable (as concurrency bugs tend to be unfortunately).
I don't know if it's PR itself, Fastcraft, interaction with some other mod, or what, but right now the Auto Crafting Bench is effectively unusable in Infinity Evolved. I haven't tested to see if it affects the skyblock version as well, but I would assume so.