Forge not picking up a class when run outside of dev environment

yoshiquest · September 14, 2015

I've managed to successfully implement code for an adapter for Clojure, but it only works within the dev environment due to forge not picking it up outside of the dev environment.

The jar name is test-mod-1.0.jar if that helps.

My current folder structure is:

main folder: forge_clj

subfolder:forge_clj/testmod (contains a sample mod that uses the code)

subfolder:forge_clj/core (contains the class I need)

I've referenced it directly in the code (so the resulting name it looks for is "forge_clj.core.ClojureAdapter"). This actually works in the dev environment, and I can't see any other differences besides being in a jar file. Any ideas as to why that class isn't loading?

Abastro · September 14, 2015

What is Clojure? Is it a library?

yoshiquest · September 14, 2015

What is Clojure? Is it a library?

Clojure is a programming language built on top of the jvm. My current project is adding support for it to minecraft forge. I've managed to get around certain problems via an ILanguageAdapter implementation known as ClojureAdapter. From what I can see, forge uses Class.forname on a string that is given in the mod definition in order to find the Adapter. This strategy worked when in a dev environment, but it can't find the class file when run in a normal minecraft installation.

Mind you, I have been needing to place clojure.jar (the compiler) into the mods folder as well, though I doubt this is the problem.

Abastro · September 14, 2015

I think you should have 2 mods for that.

first mod is java mod and contains ILanguageAdapter.

second mod is clojure mod loaded by first mod.

yoshiquest · September 15, 2015

I separated the two mods. It still can't find it.

Abastro · September 15, 2015

Can you post console log? It would be so helpful.

yoshiquest · September 15, 2015

Can you post console log? It would be so helpful.

Well, if you insist. I don't think it'll be that helpful but:

[20:35:44] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker

[20:35:44] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker

[20:35:44] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker

[20:35:44] [main/INFO] [FML]: Forge Mod Loader version 7.99.30.1492 for Minecraft 1.7.10 loading

[20:35:44] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.7.0_60, running on Mac OS X:x86_64:10.10.5, installed at /Library/Java/JavaVirtualMachines/jdk1.7.0_60.jdk/Contents/Home/jre

[20:35:45] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[20:35:45] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker

[20:35:45] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[20:35:45] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper

[20:35:47] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557

[20:35:47] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc

[20:35:47] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper

[20:35:47] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker

[20:35:48] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.TerminalTweaker

[20:35:48] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.TerminalTweaker

[20:35:48] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}

[20:35:50] [main/INFO]: Setting user: yoshiquest01

[20:35:52] [main/INFO] [sTDOUT]: [net.minecraft.client.main.Main:main:144]: Completely ignored arguments: [--nativeLauncherVersion, 283]

[20:35:52] [Client thread/INFO]: LWJGL Version: 2.9.1

[20:35:53] [Client thread/INFO] [sTDOUT]: [cpw.mods.fml.client.SplashProgress:start:188]: ---- Minecraft Crash Report ----

// Daisy, daisy...

Time: 9/14/15 8:35 PM

Description: Loading screen debug info

This is just a prompt for computer specs to be printed. THIS IS NOT A ERROR

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

---------------------------------------------------------------------------------------

-- System Details --

Details:

Minecraft Version: 1.7.10

Operating System: Mac OS X (x86_64) version 10.10.5

Java Version: 1.7.0_60, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 277509352 bytes (264 MB) / 386400256 bytes (368 MB) up to 3817865216 bytes (3641 MB)

JVM Flags: 2 total; -Xmx4G -XX:MaxPermSize=256M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML:

GL info: ' Vendor: 'Intel Inc.' Version: '2.1 INTEL-10.6.33' Renderer: 'Intel Iris OpenGL Engine'

[20:35:53] [Client thread/INFO] [MinecraftForge]: Attempting early MinecraftForge initialization

[20:35:53] [Client thread/INFO] [FML]: MinecraftForge v10.13.4.1492 Initialized

[20:35:53] [Client thread/INFO] [FML]: Replaced 183 ore recipies

[20:35:54] [Client thread/INFO] [MinecraftForge]: Completed early MinecraftForge initialization

[20:35:54] [Client thread/INFO] [FML]: Found 0 mods from the command line. Injecting into mod discoverer

[20:35:54] [Client thread/INFO] [FML]: Searching /Users/Ryan/Library/Application Support/minecraft/mods for mods

[20:36:01] [Client thread/INFO] [FML]: Attempting to reparse the mod container clojure-1.7.0.jar

[20:36:01] [Client thread/ERROR] [FML]: Error constructing custom mod language adapter forge_clj.core.ClojureAdapter (referenced by yoshiquest.testmod.TestMod) (modid: test-mod)

java.lang.ClassNotFoundException: forge_clj.core.ClojureAdapter

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_60]

at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_60]

at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:58) ~[ModClassLoader.class:?]

at java.lang.Class.forName0(Native Method) ~[?:1.7.0_60]

at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_60]

at cpw.mods.fml.common.FMLModContainer.<init>(FMLModContainer.java:105) [FMLModContainer.class:?]

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [?:1.7.0_60]

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) [?:1.7.0_60]

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [?:1.7.0_60]

at java.lang.reflect.Constructor.newInstance(Constructor.java:526) [?:1.7.0_60]

at cpw.mods.fml.common.ModContainerFactory.build(ModContainerFactory.java:79) [ModContainerFactory.class:?]

at cpw.mods.fml.common.discovery.JarDiscoverer.discover(JarDiscoverer.java:83) [JarDiscoverer.class:?]

at cpw.mods.fml.common.discovery.ContainerType.findMods(ContainerType.java:42) [ContainerType.class:?]

at cpw.mods.fml.common.discovery.ModCandidate.explore(ModCandidate.java:71) [ModCandidate.class:?]

at cpw.mods.fml.common.discovery.ModDiscoverer.identifyMods(ModDiscoverer.java:131) [ModDiscoverer.class:?]

at cpw.mods.fml.common.Loader.identifyMods(Loader.java:364) [Loader.class:?]

at cpw.mods.fml.common.Loader.loadMods(Loader.java:489) [Loader.class:?]

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:208) [FMLClientHandler.class:?]

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) [bao.class:?]

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878) [bao.class:?]

at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_60]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_60]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_60]

at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_60]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]

Caused by: java.lang.NullPointerException

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]

... 27 more

[20:36:01] [Client thread/ERROR] [FML]: Unable to construct cpw.mods.fml.common.Mod container

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_60]

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) ~[?:1.7.0_60]

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.7.0_60]

at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[?:1.7.0_60]