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[1.15.2 - Recommended] Dependency not loading when using 'embed'


jskidd3
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Hello,

 

I've carefully followed the ForgeGradle dependency documentation as I need to embed a few dependencies in my project.

 

Most of these dependencies are loading and can be used as expected, but one is throwing java.lang.NoClassDefFoundError when I try to make use of the library.

 

I can see that the library has been embedded in the jar file, but the mod crashes when I try to access the library.

 

I'd really appreciate any help working around this.

 

Here is my build.gradle:

 

Spoiler

buildscript {
    repositories {
        maven { url = 'https://files.minecraftforge.net/maven' }
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true
    }
}
apply plugin: 'net.minecraftforge.gradle'
// Only edit below this line, the above code adds and enables the necessary things for Forge to be setup.
apply plugin: 'eclipse'
apply plugin: 'maven-publish'

version = '1.0.0'
group = 'io.jupiter.link' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = 'link'

sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.

minecraft {
    mappings channel: 'snapshot', version: '20190719-1.14.3'
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
    
    // accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg')

    // Default run configurations.
    // These can be tweaked, removed, or duplicated as needed.
    runs {
        client {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }

        server {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }

        data {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'

            // Recommended logging level for the console
            property 'forge.logging.console.level', 'debug'

            args '--mod', 'examplemod', '--all', '--output', file('src/generated/resources/')

            mods {
                examplemod {
                    source sourceSets.main
                }
            }
        }
    }
}

repositories {
    mavenCentral()
}

configurations {
    embed
    compile.extendsFrom(embed)
}

dependencies {
    minecraft 'net.minecraftforge:forge:1.15.2-31.1.0'

    embed 'io.socket:engine.io-server:1.3.1'
    embed group: 'com.corundumstudio.socketio', name: 'netty-socketio', version: '1.7.17'
    embed group: 'org.apache.httpcomponents', name: 'httpclient', version: '4.5'
    embed group: 'org.jmdns', name: 'jmdns', version: '3.5.5'
    embed 'org.slf4j:slf4j-nop:1.7.25'
}

jar {
    manifest {
        attributes([
            "Specification-Title": "Link",
            "Specification-Vendor": "Jupiter",
            "Specification-Version": "1", // We are version 1 of ourselves
            "Implementation-Title": project.name,
            "Implementation-Version": "${version}",
            "Implementation-Vendor" :"Jupiter",
            "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
        ])
    }
    
    from configurations.embed.collect { it.isDirectory() ? it : zipTree(it) }
}

def reobfFile = file("$buildDir/reobfJar/output.jar")
def reobfArtifact = artifacts.add('default', reobfFile) {
    type 'jar'
    builtBy 'reobfJar'
}
publishing {
    publications {
        mavenJava(MavenPublication) {
            artifact reobfArtifact
        }
    }
    repositories {
        maven {
            url "file:///${project.projectDir}/mcmodsrepo"
        }
    }
}

 

Here is the fairly typical crash log:

 

Spoiler

[26Apr2020 13:31:07.993] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, eggy, --version, 1.15.2-forge-31.1.47, --gameDir, /Users/jupiter/Library/Application Support/minecraft, --assetsDir, /Users/jupiter/Library/Application Support/minecraft/assets, --assetIndex, 1.15, --uuid, 9016adc5a3cb4677a6ae5b67653c08d0, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release, --launchTarget, fmlclient, --fml.forgeVersion, 31.1.47, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20200414.225201]
[26Apr2020 13:31:07.996] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 5.0.0-milestone.4+67+b1a340b starting: java version 1.8.0_74 by Oracle Corporation
[26Apr2020 13:31:08.123] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[26Apr2020 13:31:08.882] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlclient' with arguments [--version, 1.15.2-forge-31.1.47, --gameDir, /Users/jupiter/Library/Application Support/minecraft, --assetsDir, /Users/jupiter/Library/Application Support/minecraft/assets, --uuid, 9016adc5a3cb4677a6ae5b67653c08d0, --username, eggy, --assetIndex, 1.15, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release]
[26Apr2020 13:31:10.792] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Setting user: eggy
[26Apr2020 13:31:17.454] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Backend library: LWJGL version 3.2.1 build 12
[26Apr2020 13:31:19.409] [modloading-worker-9/INFO] [net.minecraftforge.common.ForgeMod/FORGEMOD]: Forge mod loading, version 31.1.47, for MC 1.15.2 with MCP 20200414.225201
[26Apr2020 13:31:19.409] [modloading-worker-9/INFO] [net.minecraftforge.common.MinecraftForge/FORGE]: MinecraftForge v31.1.47 Initialized
[26Apr2020 13:31:19.728] [Render thread/INFO] [io.jupiter.link.ExampleMod/]: HELLO from Register Block
[26Apr2020 13:31:22.151] [Render thread/INFO] [net.minecraft.resources.SimpleReloadableResourceManager/]: Reloading ResourceManager: Default, Mod Resources
[26Apr2020 13:31:23.006] [modloading-worker-11/INFO] [io.jupiter.link.ExampleMod/]: HELLO FROM PREINIT
[26Apr2020 13:31:23.007] [modloading-worker-11/INFO] [io.jupiter.link.ExampleMod/]: DIRT BLOCK >> minecraft:dirt
[26Apr2020 13:31:23.129] [Forge Version Check/INFO] [net.minecraftforge.fml.VersionChecker/]: [forge] Starting version check at https://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
[26Apr2020 13:31:23.758] [Forge Version Check/INFO] [net.minecraftforge.fml.VersionChecker/]: [forge] Found status: OUTDATED Current: 31.1.47 Target: 31.1.50
[26Apr2020 13:31:24.052] [modloading-worker-11/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/]: Exception caught during firing event: javax/jmdns/JmDNS
  Index: 1
  Listeners:
    0: NORMAL
    1: net.minecraftforge.eventbus.EventBus$$Lambda$2093/839624607@100a2528
java.lang.NoClassDefFoundError: javax/jmdns/JmDNS
  at io.jupiter.link.ExampleServiceRegistration.start(ExampleServiceRegistration.java:15)
  at io.jupiter.link.ExampleMod.setup(ExampleMod.java:82)
  at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:212)
  at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:204)
  at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258)
  at net.minecraftforge.fml.javafmlmod.FMLModContainer.fireEvent(FMLModContainer.java:106)
  at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65)
  at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65)
  at net.minecraftforge.fml.ModContainer.transitionState(ModContainer.java:112)
  at net.minecraftforge.fml.ModList.lambda$null$10(ModList.java:134)
  at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:291)
  at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)
  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: java.lang.ClassNotFoundException: javax.jmdns.JmDNS
  at java.lang.ClassLoader.findClass(ClassLoader.java:530)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:92)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  ... 19 more

[26Apr2020 13:31:24.054] [modloading-worker-11/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/LOADING]: Caught exception during event FMLCommonSetupEvent dispatch for modid magma
java.lang.NoClassDefFoundError: javax/jmdns/JmDNS
  at io.jupiter.link.ExampleServiceRegistration.start(ExampleServiceRegistration.java:15) ~[?:1.0.0]
  at io.jupiter.link.ExampleMod.setup(ExampleMod.java:82) ~[?:1.0.0]
  at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:212) ~[eventbus-2.0.0-milestone.1-service.jar:?]
  at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:204) ~[eventbus-2.0.0-milestone.1-service.jar:?]
  at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-2.0.0-milestone.1-service.jar:?]
  at net.minecraftforge.fml.javafmlmod.FMLModContainer.fireEvent(FMLModContainer.java:106) ~[?:31.1]
  at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) ~[?:1.8.0_74]
  at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) ~[?:1.8.0_74]
  at net.minecraftforge.fml.ModContainer.transitionState(ModContainer.java:112) ~[?:?]
  at net.minecraftforge.fml.ModList.lambda$null$10(ModList.java:134) ~[?:?]
  at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) [?:1.8.0_74]
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) [?:1.8.0_74]
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) [?:1.8.0_74]
  at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:291) [?:1.8.0_74]
  at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:1.8.0_74]
Caused by: java.lang.ClassNotFoundException: javax.jmdns.JmDNS
  at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_74]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_74]
  at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:92) ~[modlauncher-5.0.0-milestone.4.jar:?]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
  ... 19 more
[26Apr2020 13:31:24.056] [Server-Worker-1/FATAL] [net.minecraftforge.fml.ModLoader/LOADING]: Failed to complete lifecycle event SETUP, 1 errors found
[26Apr2020 13:31:24.056] [Server-Worker-1/FATAL] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: EventBus 0 shutting down - future events will not be posted.
java.lang.Exception: stacktrace
  at net.minecraftforge.eventbus.EventBus.shutdown(EventBus.java:278) ~[eventbus-2.0.0-milestone.1-service.jar:?]
  at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:115) ~[?:?]
  at net.minecraftforge.fml.client.ClientModLoader.startModLoading(ClientModLoader.java:123) ~[?:?]
  at net.minecraftforge.fml.client.ClientModLoader.lambda$onreload$3(ClientModLoader.java:105) ~[?:?]
  at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113) ~[?:?]
  at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626) [?:1.8.0_74]
  at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1618) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:1.8.0_74]
[26Apr2020 13:31:24.876] [Server-Worker-3/ERROR] [net.minecraftforge.fml.ModLoader/LOADING]: Skipping lifecycle event ENQUEUE_IMC, 1 errors found.
[26Apr2020 13:31:24.877] [Server-Worker-3/FATAL] [net.minecraftforge.fml.ModLoader/LOADING]: Failed to complete lifecycle event ENQUEUE_IMC, 1 errors found
[26Apr2020 13:31:24.877] [Server-Worker-3/FATAL] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: EventBus 0 shutting down - future events will not be posted.
java.lang.Exception: stacktrace
  at net.minecraftforge.eventbus.EventBus.shutdown(EventBus.java:278) ~[eventbus-2.0.0-milestone.1-service.jar:?]
  at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:115) ~[?:?]
  at net.minecraftforge.fml.client.ClientModLoader.finishModLoading(ClientModLoader.java:137) ~[?:?]
  at net.minecraftforge.fml.client.ClientModLoader.lambda$onreload$4(ClientModLoader.java:107) ~[?:?]
  at java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:705) [?:1.8.0_74]
  at java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:687) [?:1.8.0_74]
  at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) [?:1.8.0_74]
  at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:1.8.0_74]
[26Apr2020 13:31:25.105] [Render thread/INFO] [net.minecraft.client.audio.SoundSystem/]: OpenAL initialized.
[26Apr2020 13:31:25.110] [Render thread/INFO] [net.minecraft.client.audio.SoundEngine/SOUNDS]: Sound engine started
[26Apr2020 13:31:25.321] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 1024x512x4 minecraft:textures/atlas/blocks.png-atlas
[26Apr2020 13:31:25.335] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 128x128x4 minecraft:textures/atlas/signs.png-atlas
[26Apr2020 13:31:25.336] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
[26Apr2020 13:31:25.337] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
[26Apr2020 13:31:25.338] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x4 minecraft:textures/atlas/chest.png-atlas
[26Apr2020 13:31:25.339] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
[26Apr2020 13:31:25.340] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
[26Apr2020 13:31:25.772] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/particles.png-atlas
[26Apr2020 13:31:25.773] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
[26Apr2020 13:31:25.773] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas

 

Edited by jskidd3
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This post (and your reply specifically) seems very relevant as fmDNS uses org.apache libs.

 

The hack isn't working with 1.15.2 but I'm keen to figure out a way of doing this using transformation anyway.

 

 

 

Edited by jskidd3
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