[BUG] Just Enough Resources (JER) does not get downloaded

[kman3107]

Describe the problem

I updated Wold's Vaults which uses JER Loot Table Sync, which of course needs JER (Just Enough Resources (JER)), but for some reason JER is not downloaded when I update or try to restart container with either slug or project ID in CF_FORCE_INCLUDE_MODS.
I also tried manually downloading and putting the .jar file in the downloads/mods/ folder, but the file wasn't moved.
Finally I manually put the .jar file in server/mods/ folder, and the server started just fine.

I did notice a couple of closed issues with jeresources mentioned, but didn't see any mention of them being the same issue as I have.

Container definition

---
name: wolds
services:
  minecraft:
    stop_grace_period: 60s
    image: itzg/minecraft-server:java17-alpine
    container_name: wolds
    volumes:
      - /home/USER/minecraft/wolds/downloads:/downloads
      - /home/USER/minecraft/wolds/server:/data
    networks:
      - games
    ports:
      - "27065:25565/tcp"
    restart: unless-stopped
    environment:
      EULA: true
      TYPE: AUTO_CURSEFORGE
      FORCE_REDOWNLOAD: false
      USE_MODPACK_START_SCRIPT: true
      INIT_MEMORY: 10G
      MAX_MEMORY: 10G
      JVM_OPTS: |
        -XX:+UseG1GC
        -XX:+ParallelRefProcEnabled
        -XX:MaxGCPauseMillis=200
        -XX:+UnlockExperimentalVMOptions
        -XX:+DisableExplicitGC
        -XX:+AlwaysPreTouch
        -XX:G1NewSizePercent=30
        -XX:G1MaxNewSizePercent=40
        -XX:G1HeapRegionSize=8M
        -XX:G1ReservePercent=20
        -XX:G1HeapWastePercent=5
        -XX:G1MixedGCCountTarget=4
        -XX:InitiatingHeapOccupancyPercent=15
        -XX:G1MixedGCLiveThresholdPercent=90
        -XX:G1RSetUpdatingPauseTimePercent=5
        -XX:SurvivorRatio=32
        -XX:+PerfDisableSharedMem
        -XX:MaxTenuringThreshold=1
      JVM_DD_OPTS: |
      ENABLE_ROLLING_LOGS: true
      LOG_TIMESTAMP: true
      TZ: Europe/Berlin
      UID: 1000
      GID: 100
    env_file:
      - /home/USER/minecraft/wolds/srv-prop.env
      - /home/USER/minecraft/wolds/curse.env

networks:
  games:
    name: games
    driver: bridge
    external: true

Container logs

Crash log

---- Minecraft Crash Report ----
// You're mean.

Time: 3/21/26, 1:56 AM
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
	at net.minecraftforge.logging.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:55) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
	at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:39) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
	at net.minecraft.server.Main.main(Main.java:112) ~[server-1.18.2-20220404.173914-srg.jar%23407!/:?] {re:classloading,re:mixin,pl:mixin:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32) ~[fmlloader-1.18.2-40.3.11.jar%2320!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: main
Suspected Mods: NONE
Stacktrace:
	at net.minecraftforge.logging.CrashReportExtender.lambda$dumpModLoadingCrashReport$7(CrashReportExtender.java:58) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
-- MOD jer_loot_tables_sync --
Details:
	Mod File: /data/mods/jer_loot_tables_sync-1.0.0.jar
	Failure message: Mod jer_loot_tables_sync requires jeresources any
		Currently, jeresources is not installed
	Mod Version: 1.0.0
	Mod Issue URL: NOT PROVIDED
	Exception message: MISSING EXCEPTION MESSAGE
Stacktrace:
	at net.minecraftforge.logging.CrashReportExtender.lambda$dumpModLoadingCrashReport$7(CrashReportExtender.java:58) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
	at java.util.ArrayList.forEach(Unknown Source) ~[?:?] {}
	at net.minecraftforge.logging.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:56) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
	at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:39) ~[forge-1.18.2-40.3.11-universal.jar%23412!/:?] {re:classloading}
	at net.minecraft.server.Main.main(Main.java:112) ~[server-1.18.2-20220404.173914-srg.jar%23407!/:?] {re:classloading,re:mixin,pl:mixin:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$launchService$0(CommonServerLaunchHandler.java:32) ~[fmlloader-1.18.2-40.3.11.jar%2320!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%235!/:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}


-- System Details --
Details:
	Minecraft Version: 1.18.2
	Minecraft Version ID: 1.18.2
	Operating System: Linux (amd64) version 6.12.69+deb13-amd64
	Java Version: 17.0.17, Eclipse Adoptium
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium
	Memory: 8790141744 bytes (8382 MiB) / 10737418240 bytes (10240 MiB) up to 10737418240 bytes (10240 MiB)
	CPUs: 6
	Processor Vendor: GenuineIntel
	Processor Name: Intel(R) Core(TM) i5-8500T CPU @ 2.10GHz
	Identifier: Intel64 Family 6 Model 158 Stepping 10
	Microarchitecture: Coffee Lake
	Frequency (GHz): 2.10
	Number of physical packages: 1
	Number of physical CPUs: 6
	Number of logical CPUs: 6
	Graphics card #0 name: unknown
	Graphics card #0 vendor: unknown
	Graphics card #0 VRAM (MB): 0.00
	Graphics card #0 deviceId: unknown
	Graphics card #0 versionInfo: unknown
	Virtual memory max (MB): 19898.68
	Virtual memory used (MB): 11765.27
	Swap memory total (MB): 7983.00
	Swap memory used (MB): 0.00
	JVM Flags: 20 total; -Xmx10G -Xms10G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1
	ModLauncher: 9.1.3+9.1.3+main.9b69c82a
	ModLauncher launch target: forgeserver
	ModLauncher naming: srg
	ModLauncher services: 
		 mixin PLUGINSERVICE 
		 eventbus PLUGINSERVICE 
		 slf4jfixer PLUGINSERVICE 
		 object_holder_definalize PLUGINSERVICE 
		 runtime_enum_extender PLUGINSERVICE 
		 capability_token_subclass PLUGINSERVICE 
		 accesstransformer PLUGINSERVICE 
		 runtimedistcleaner PLUGINSERVICE 
		 mixin TRANSFORMATIONSERVICE 
		 fml TRANSFORMATIONSERVICE 
	FML Language Providers: 
		minecraft@1.0
		Configured Defaults@8.0.1
		javafml@null
		kotlinforforge@3.12.0
		lowcodefml@null
		kotori_scala@2.13.10-build-12
	Mod List: 
		server-1.18.2-20220404.173914-srg.jar             |Minecraft                     |minecraft                     |1.18.2              |NONE      |Manifest: NOSIGNATURE
		forge-1.18.2-40.3.11-universal.jar                |Forge                         |forge                         |40.3.11             |NONE      |Manifest: 84:ce:76:e8:45:35:e4:0e:63:86:df:47:59:80:0f:67:6c:c1:5f:6e:5f:4d:b3:54:47:1a:9f:7f:ed:5e:f2:90

Additional Information

Wolds vaults server was updating and working fine before Wold's Vaults-0.26.3, that is almost certainly because the server didn't need JER before this as JER Loot Table Sync wasn't added until then.

[itzg]

This modpack right?

https://www.curseforge.com/minecraft/modpacks/wolds-vaults

[kman3107]

This modpack right?

https://www.curseforge.com/minecraft/modpacks/wolds-vaults

Yes that is correct.

[kman3107]

@itzg did you do something? In fact, I don't think it matter if you did because I'm still using java17-alpine which I don't think is updated anymore right?

Well, I just decided to try deleting JER for the new modpack update and it now works. I'm thinking there must have been a problem on the modpack side of things. Maybe a mispelling of the filename or something.

Unless you found something, and want this issue open I'll close it as a modpack issue that is fixed.

PS. I guess I could mention what actually is working since I only did delete the jar file.
Right now I have CF_FORCE_INCLUDE_MODS=just-enough-resources-jer, and I deleted the JER file from my system. Now I see Downloaded mod file mods/JustEnoughResources-1.18.2-0.14.2.206.jar and the server updates and spins up just fine.

[itzg]

I didn't do anything. JER was already excluded

https://github.com/itzg/docker-minecraft-server/blame/59a2126192a1af5976dd0902b6fd3e94baf7fdb5/files/cf-exclude-include.json#L95

but your theory is good that maybe there are alternates with different identifiers. And yes, the modpack author might have actually set the metadata correctly.

I'm good with closing.