BugJump
- Help BugJump fix bugs
Features
Modify the loading screen Heavily based on and inspired by Quilt Loading Screen
This feature is turned off by default and can be turned on through
config/bugjump.json
Fixed a crash caused by multiple rendering threads calling fastutil at the same time when too many client modules were installed
- for example
java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 513 at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.rehash(Int2ObjectOpenHashMap.java:1334) at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.insert(Int2ObjectOpenHashMap.java:279) at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap.computeIfAbsent(Int2ObjectOpenHashMap.java:500) at net.minecraft.class_377.method_2011(class_377.java:137) at net.minecraft.class_327.method_27516(class_327.java:57) at net.minecraft.class_5225.method_27496(class_5225.java:41) at net.minecraft.class_5223.method_27477(class_5223.java:17) at net.minecraft.class_5223.method_27473(class_5223.java:120) at net.minecraft.class_5223.method_27472(class_5223.java:84) at net.minecraft.class_5223.method_27479(class_5223.java:80) at net.minecraft.class_5225.method_27482(class_5225.java:40) at net.minecraft.class_327.method_1727(class_327.java:364) at net.minecraft.class_329.method_1754(class_329.java:651) at net.minecraft.class_329.method_1753(class_329.java:238) at net.minecraft.class_757.method_3192(class_757.java:862) at net.minecraft.class_310.method_1523(class_310.java:1177) at net.minecraft.class_310.method_1514(class_310.java:768) at net.minecraft.client.main.Main.method_44604(Main.java:244) at net.minecraft.client.main.Main.main(Main.java:51) at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:461) at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:577) at oolloo.jlw.Wrapper.invokeMain(Wrapper.java:58) at oolloo.jlw.Wrapper.main(Wrapper.java:51)
- for example
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as BugJump-1.2.0-1.20.1.jar — drop this file into the mods folder
- Download size: 34 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.
