java.lang.NoSuchMethodError on Minecraft launch

Adityagupta · March 10, 2016

Hi everyone,

When I launched Minecraft with a mod I've been developing, I got a java.lang.NoSuchMethodError before the mod loading even completed. Here is the crash report:

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 3/9/16 8:36 PM
Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderException: java.lang.NoSuchMethodError: net.minecraft.client.Minecraft.getMinecraft()Lnet/minecraft/client/Minecraft;
at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:162)
at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:739)
at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:310)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:495)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.NoSuchMethodError: net.minecraft.client.Minecraft.getMinecraft()Lnet/minecraft/client/Minecraft;
at org.redfrog404.mobycraft.Moby.init(Moby.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:560)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:189)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:737)
... 10 more


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

-- System Details --
Details:
Minecraft Version: 1.8.9
Operating System: Mac OS X (x86_64) version 10.10.5
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 111562552 bytes (106 MB) / 358658048 bytes (342 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.19 Powered by Forge 11.15.1.1764 4 mods loaded, 4 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHI	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
UCHI	FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.1.1764.jar) 
UCHI	Forge{11.15.1.1764} [Minecraft Forge] (forge-1.8.9-11.15.1.1764.jar) 
UCHE	moby{1.0} [moby] (mobycraft-1.0-all.jar) 
Loaded coremods (and transformers): 
GL info: ' Vendor: 'ATI Technologies Inc.' Version: '2.1 ATI-1.32.25' Renderer: 'AMD Radeon R9 M290X OpenGL Engine'

The file which this error is pointing to is located at https://github.com/AdityaGupta1/mobycraft/blob/master/src/src/main/java/org/redfrog404/mobycraft/Moby.java.

The mod has a bunch of other JARs bundled with it into a shadow JAR. I use the shadowJar plugin in the build.gradle file to make it. I put the shadow JAR into the mods folder and got the above error.

The next thing I tried was to convert the shadow JAR to a ZIP file and remove the mod files. I placed the mod files into a separate JAR, which I will call the mod JAR. I called the JAR with everything but the mod files as the dependency JAR. I tried putting both the mod JAR and the dependency JAR into the mods folder, but that gave me a different error - the mod JAR was not able to find the classes from the dependency JAR.

Any suggestions on how to debug this further?

Draco18s · March 10, 2016

You are running client only code on the server. This is why we have proxies

Choonster · March 10, 2016

What Draco said is true and will definitely crash the dedicated server, but I don't think it's the problem here.

It looks like you're trying to use your mod in the obfuscated client without reobfuscating it. Use the

build

Gradle task to build and reobfuscate your mod.

Adityagupta · March 10, 2016

Thanks for the quick replies!

When I am building my mod, I first do "./gradlew build", then "./gradlew shadowJar" to bundle the mod with the other JARs. Correct me if I'm wrong, but that should reobfuscate the mod.

Here is my build.gradle file:

// For those who want the bleeding edge
buildscript {
    repositories {
        jcenter()
        maven {
            name = "forge"
            url = "http://files.minecraftforge.net/maven"
        }
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'
        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.3'
    }
}
apply plugin: 'net.minecraftforge.gradle.forge'
apply plugin: 'com.github.johnrengelman.shadow'

/*
// for people who want stable - not yet functional for MC 1.8.8 - we require the forgegradle 2.1 snapshot
plugins {
    id "net.minecraftforge.gradle.forge" version "2.0.2"
}
*/
version = "1.0"
group= "org.redfrog404.mobycraft" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = "mobycraft"

minecraft {
    version = "1.8.9-11.15.1.1762"
    runDir = "run"
    
    // the mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   snapshot are built nightly.
    // stable_#            stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not allways work.
    // simply re-run your setup task after changing the mappings to update your workspace.
    mappings = "stable_20"
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
}

dependencies {
    // you may put jars on which you depend on in ./libs
    // or you may define them like so..
    //compile "some.group:artifact:version:classifier"
    //compile "some.group:artifact:version"
    compile group: 'com.github.docker-java', name: 'docker-java', version: '2.2.1'
      
    // real examples
    //compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
    //compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env

    // the 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
    //provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // the deobf configurations:  'deobfCompile' and 'deobfProvided' are the same as the normal compile and provided,
    // except that these dependencies get remapped to your current MCP mappings
    //deobfCompile 'com.mod-buildcraft:buildcraft:6.0.8:dev'
    //deobfProvided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // for more info...
    // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html
    // http://www.gradle.org/docs/current/userguide/dependency_management.html

}

shadowJar {
  dependencies {
    include(dependency('com.github.docker-java:docker-java:2.2.1'))
    include(dependency('com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:2.1.2'))
    include(dependency('com.fasterxml.jackson.core:jackson-core:2.1.2'))
    include(dependency('com.fasterxml.jackson.core:jackson-databind:2.1.2'))
    include(dependency('com.fasterxml.jackson.core:jackson-annotations:2.1.1'))
    include(dependency('com.fasterxml.jackson.module:jackson-module-jaxb-annotations:2.1.2'))
    include(dependency('org.glassfish.jersey.connectors:jersey-apache-connector:2.11'))
    include(dependency('org.glassfish.jersey.core:jersey-common:2.11'))
    include(dependency('javax.annotation:javax.annotation-api:1.2'))
    include(dependency('org.glassfish.jersey.bundles.repackaged:jersey-guava:2.11'))
    include(dependency('org.glassfish.hk2:osgi-resource-locator:1.0.1'))
    include(dependency('javax.ws.rs:javax.ws.rs-api:2.0'))
    include(dependency('org.apache.httpcomponents:httpclient:4.3.1'))
    include(dependency('org.apache.httpcomponents:httpcore:4.3'))
    include(dependency('commons-logging:commons-logging:1.1.3'))
    include(dependency('org.glassfish.jersey.core:jersey-client:2.11'))
    include(dependency('org.glassfish.hk2:hk2-api:2.3.0-b05'))
    include(dependency('org.glassfish.hk2:hk2-utils:2.3.0-b05'))
    include(dependency('org.glassfish.hk2.external:aopalliance-repackaged:2.3.0-b05'))
    include(dependency('org.glassfish.hk2.external:javax.inject:2.3.0-b05'))
    include(dependency('org.glassfish.hk2:hk2-locator:2.3.0-b05'))
    include(dependency('org.javassist:javassist:3.18.1-GA'))
    include(dependency('de.gesellix:unix-socket-factory:2015-01-27T15-02-14'))
    include(dependency('org.apache.commons:commons-compress:1.5'))
    include(dependency('org.tukaani:xz:1.2'))
    include(dependency('commons-codec:commons-codec:1.8'))
    include(dependency('commons-lang:commons-lang:2.6'))
    include(dependency('commons-io:commons-io:2.3'))
    include(dependency('org.slf4j:slf4j-api:1.7.5'))
    include(dependency('org.slf4j:jcl-over-slf4j:1.7.12'))
    include(dependency('com.google.guava:guava:18.0'))
    include(dependency('org.bouncycastle:bcpkix-jdk15on:1.51'))
    include(dependency('org.bouncycastle:bcprov-jdk15on:1.51'))
  }
}

processResources
{
    // this will ensure that this task is redone when the versions change.
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    // replace stuff in mcmod.info, nothing else
    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
                
        // replace version and mcversion
        expand 'version':project.version, 'mcversion':project.minecraft.version
    }
        
    // copy everything else, thats not the mcmod.info
    from(sourceSets.main.resources.srcDirs) {
        exclude 'mcmod.info'
    }
}

Also, I've seen proxies in use by other mods but I never understood how they work. Is there some place I can see how to use those?

Thanks!

UberAffe · March 10, 2016

Proxy is used do separate registration code that is meant for the Physical client(logical client and logical server) and Physical server(logical server only)

In your main mod file you use

@SidedProxy(clientSide = Refs.CLIENTPROXY, serverSide = Refs.SERVERPROXY)
    public static CommonProxy proxy;

CLIENTPROXY and SERVERPROXY are strings that would be equal to an import line.

if an import would look like
import modid.ClientProxy;

@SidedProxy(clientSide = "modid.ClientProxy"

your clientproxy class should extend common proxy.

Your mod file will now have this:

       @SidedProxy(clientSide = Refs.CLIENTPROXY, serverSide = Refs.SERVERPROXY)
       public static CommonProxy proxy;

       @EventHandler
       public void preInit (FMLPreInitializationEvent event){
	proxy.preInit();
}

@EventHandler
        public void init (FMLInitializationEvent event){
	proxy.init();
}

@EventHandler
        public void postInit (FMLPostInitializationEvent event){
                proxy.postInit();
}

the majority of your registration will go in CommonProxy, and any client specific stuff (KeyBindings, GUI's, etc) will go in ClientProxy.

Choonster · March 10, 2016

Thanks for the quick replies!

When I am building my mod, I first do "./gradlew build", then "./gradlew shadowJar" to bundle the mod with the other JARs. Correct me if I'm wrong, but that should reobfuscate the mod.

It looks like the

shadowJar

task uses the compiled output from the

main

SourceSet

, but ForgeGradle handles reobfuscation separately (it assembles the JAR and then reobfuscates that).

It may be easier to use the shading method described here than trying to integrate the shadow plugin with ForgeGradle.

shadowfacts · March 10, 2016

I have a project that uses the shadow plugin, and I had to do it a bit of messing around but I got it to work. My build.gradle file is here but the key point is these two lines:

reobf { shadowJar { mappingType = "SEARGE" } }
tasks.reobfShadowJar.mustRunAfter shadowJar

This tells ForgeGradle to add a reobfShadowJar task that reobfuscates the shadowJar and has it automatically run after the shadowJar task. Depending on your configuration, you may need to run reobfShadowJar manually (e.g. run

gradlew shadowJar reobfShadowJar

). If you use CurseGradle you'll need to add something like this (but with 000000 replaced with your project id):

afterEvaluate {
tasks.curseforge240995.dependsOn reobfShadowJar
}

Adityagupta · March 11, 2016

Thanks for all the quick resposnses again!

@Shadowfacts: I tried out the two lines you posted in my build.gradle file, and I got the same error as before (NoSuchMethodError). I didn't try out the second code sample because I am not using CurseGradle.

I have a project that uses the shadow plugin, and I had to do it a bit of messing around but I got it to work. My build.gradle file is here but the key point is these two lines:
reobf { shadowJar { mappingType = "SEARGE" } }
tasks.reobfShadowJar.mustRunAfter shadowJar
This tells ForgeGradle to add a reobfShadowJar task that reobfuscates the shadowJar and has it automatically run after the shadowJar task. Depending on your configuration, you may need to run reobfShadowJar manually (e.g. run
gradlew shadowJar reobfShadowJar
). If you use CurseGradle you'll need to add something like this (but with 000000 replaced with your project id):
afterEvaluate {
tasks.curseforge240995.dependsOn reobfShadowJar
}

@Choonster: After trying out shadowfacts' code, I switched to the "shade" plugin and used that instead. This time I got a different error:

* What went wrong:
Execution failed for task ':reobfJar'.
> java.util.zip.ZipException: duplicate entry: org/apache/commons/logging/Log.class

Here is my new build.gradle file:

// For those who want the bleeding edge
buildscript {
    repositories {
        jcenter()
        maven {
            name = "forge"
            url = "http://files.minecraftforge.net/maven"
        }
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'
    }
}
apply plugin: 'net.minecraftforge.gradle.forge'

/*
// for people who want stable - not yet functional for MC 1.8.8 - we require the forgegradle 2.1 snapshot
plugins {
    id "net.minecraftforge.gradle.forge" version "2.0.2"
}
*/
version = "1.0"
group= "org.redfrog404.mobycraft" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = "mobycraft"

minecraft {
    version = "1.8.9-11.15.1.1762"
    runDir = "run"
    
    // the mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   snapshot are built nightly.
    // stable_#            stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not allways work.
    // simply re-run your setup task after changing the mappings to update your workspace.
    mappings = "stable_20"
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
}

configurations {
    shade
    compile.extendsFrom shade
}

dependencies {
    shade 'com.github.docker-java:docker-java:2.2.1'
    shade 'com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-core:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-databind:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-annotations:2.1.1'
    shade 'com.fasterxml.jackson.module:jackson-module-jaxb-annotations:2.1.2'
    shade 'org.glassfish.jersey.connectors:jersey-apache-connector:2.11'
    shade 'org.glassfish.jersey.core:jersey-common:2.11'
    shade 'javax.annotation:javax.annotation-api:1.2'
    shade 'org.glassfish.jersey.bundles.repackaged:jersey-guava:2.11'
    shade 'org.glassfish.hk2:osgi-resource-locator:1.0.1'
    shade 'javax.ws.rs:javax.ws.rs-api:2.0'
    shade 'org.apache.httpcomponents:httpclient:4.3.1'
    shade 'org.apache.httpcomponents:httpcore:4.3'
    shade 'commons-logging:commons-logging:1.1.3'
    shade 'org.glassfish.jersey.core:jersey-client:2.11'
    shade 'org.glassfish.hk2:hk2-api:2.3.0-b05'
    shade 'org.glassfish.hk2:hk2-utils:2.3.0-b05'
    shade 'org.glassfish.hk2.external:aopalliance-repackaged:2.3.0-b05'
    shade 'org.glassfish.hk2.external:javax.inject:2.3.0-b05'
    shade 'org.glassfish.hk2:hk2-locator:2.3.0-b05'
    shade 'org.javassist:javassist:3.18.1-GA'
    shade 'de.gesellix:unix-socket-factory:2015-01-27T15-02-14'
    shade 'org.apache.commons:commons-compress:1.5'
    shade 'org.tukaani:xz:1.2'
    shade 'commons-codec:commons-codec:1.8'
    shade 'commons-lang:commons-lang:2.6'
    shade 'commons-io:commons-io:2.3'
    shade 'org.slf4j:slf4j-api:1.7.5'
    shade 'org.slf4j:jcl-over-slf4j:1.7.12'
    shade 'com.google.guava:guava:18.0'
    shade 'org.bouncycastle:bcpkix-jdk15on:1.51'
    shade 'org.bouncycastle:bcprov-jdk15on:1.51'
}

jar {
    configurations.shade.each { dep ->
        from(project.zipTree(dep)){
            exclude 'META-INF', 'META-INF/**'
        }
    }
}

//minecraft {
//    srgExtra "PK: com/fasterxml org/redfrog404/mobycraft/dependencies/com/fasterxml"
//}

processResources
{
    // this will ensure that this task is redone when the versions change.
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    // replace stuff in mcmod.info, nothing else
    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
                
        // replace version and mcversion
        expand 'version':project.version, 'mcversion':project.minecraft.version
    }
        
    // copy everything else, thats not the mcmod.info
    from(sourceSets.main.resources.srcDirs) {
        exclude 'mcmod.info'
    }
}

Thanks for the quick replies!

When I am building my mod, I first do "./gradlew build", then "./gradlew shadowJar" to bundle the mod with the other JARs. Correct me if I'm wrong, but that should reobfuscate the mod.

It looks like the
shadowJar
task uses the compiled output from the
main
SourceSet
, but ForgeGradle handles reobfuscation separately (it assembles the JAR and then reobfuscates that).

It may be easier to use the shading method described here than trying to integrate the shadow plugin with ForgeGradle.

@UberAffe: The proxy example is helpful but isn't what I am looking for. Draco18s said that I was running client-only code on a server, which implies that I should use a server-only proxy, but your example is for client-side proxies.

Proxy is used do separate registration code that is meant for the Physical client(logical client and logical server) and Physical server(logical server only)

In your main mod file you use
@SidedProxy(clientSide = Refs.CLIENTPROXY, serverSide = Refs.SERVERPROXY)
    public static CommonProxy proxy;
CLIENTPROXY and SERVERPROXY are strings that would be equal to an import line.
if an import would look like
import modid.ClientProxy;

@SidedProxy(clientSide = "modid.ClientProxy"
your clientproxy class should extend common proxy.

Your mod file will now have this:
       @SidedProxy(clientSide = Refs.CLIENTPROXY, serverSide = Refs.SERVERPROXY)
       public static CommonProxy proxy;

       @EventHandler
       public void preInit (FMLPreInitializationEvent event){
	proxy.preInit();
}

@EventHandler
        public void init (FMLInitializationEvent event){
	proxy.init();
}

@EventHandler
        public void postInit (FMLPostInitializationEvent event){
                proxy.postInit();
}
the majority of your registration will go in CommonProxy, and any client specific stuff (KeyBindings, GUI's, etc) will go in ClientProxy.

UberAffe · March 11, 2016

Everything in your CommonProxy is the Server Side from a physical perspective (a dedicated server (logical server) will use CommonProxy). A physical client (always has logical client, in smp it also is the logical server) will use ClientProxy which includes server code.

Choonster · March 11, 2016

@Choonster: After trying out shadowfacts' code, I switched to the "shade" plugin and used that instead. This time I got a different error:

* What went wrong:
Execution failed for task ':reobfJar'.
> java.util.zip.ZipException: duplicate entry: org/apache/commons/logging/Log.class

Here is my new build.gradle file:

// For those who want the bleeding edge
buildscript {
    repositories {
        jcenter()
        maven {
            name = "forge"
            url = "http://files.minecraftforge.net/maven"
        }
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'
    }
}
apply plugin: 'net.minecraftforge.gradle.forge'

/*
// for people who want stable - not yet functional for MC 1.8.8 - we require the forgegradle 2.1 snapshot
plugins {
    id "net.minecraftforge.gradle.forge" version "2.0.2"
}
*/
version = "1.0"
group= "org.redfrog404.mobycraft" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = "mobycraft"

minecraft {
    version = "1.8.9-11.15.1.1762"
    runDir = "run"
    
    // the mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   snapshot are built nightly.
    // stable_#            stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not allways work.
    // simply re-run your setup task after changing the mappings to update your workspace.
    mappings = "stable_20"
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
}

configurations {
    shade
    compile.extendsFrom shade
}

dependencies {
    shade 'com.github.docker-java:docker-java:2.2.1'
    shade 'com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-core:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-databind:2.1.2'
    shade 'com.fasterxml.jackson.core:jackson-annotations:2.1.1'
    shade 'com.fasterxml.jackson.module:jackson-module-jaxb-annotations:2.1.2'
    shade 'org.glassfish.jersey.connectors:jersey-apache-connector:2.11'
    shade 'org.glassfish.jersey.core:jersey-common:2.11'
    shade 'javax.annotation:javax.annotation-api:1.2'
    shade 'org.glassfish.jersey.bundles.repackaged:jersey-guava:2.11'
    shade 'org.glassfish.hk2:osgi-resource-locator:1.0.1'
    shade 'javax.ws.rs:javax.ws.rs-api:2.0'
    shade 'org.apache.httpcomponents:httpclient:4.3.1'
    shade 'org.apache.httpcomponents:httpcore:4.3'
    shade 'commons-logging:commons-logging:1.1.3'
    shade 'org.glassfish.jersey.core:jersey-client:2.11'
    shade 'org.glassfish.hk2:hk2-api:2.3.0-b05'
    shade 'org.glassfish.hk2:hk2-utils:2.3.0-b05'
    shade 'org.glassfish.hk2.external:aopalliance-repackaged:2.3.0-b05'
    shade 'org.glassfish.hk2.external:javax.inject:2.3.0-b05'
    shade 'org.glassfish.hk2:hk2-locator:2.3.0-b05'
    shade 'org.javassist:javassist:3.18.1-GA'
    shade 'de.gesellix:unix-socket-factory:2015-01-27T15-02-14'
    shade 'org.apache.commons:commons-compress:1.5'
    shade 'org.tukaani:xz:1.2'
    shade 'commons-codec:commons-codec:1.8'
    shade 'commons-lang:commons-lang:2.6'
    shade 'commons-io:commons-io:2.3'
    shade 'org.slf4j:slf4j-api:1.7.5'
    shade 'org.slf4j:jcl-over-slf4j:1.7.12'
    shade 'com.google.guava:guava:18.0'
    shade 'org.bouncycastle:bcpkix-jdk15on:1.51'
    shade 'org.bouncycastle:bcprov-jdk15on:1.51'
}

jar {
    configurations.shade.each { dep ->
        from(project.zipTree(dep)){
            exclude 'META-INF', 'META-INF/**'
        }
    }
}

//minecraft {
//    srgExtra "PK: com/fasterxml org/redfrog404/mobycraft/dependencies/com/fasterxml"
//}

processResources
{
    // this will ensure that this task is redone when the versions change.
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    // replace stuff in mcmod.info, nothing else
    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
                
        // replace version and mcversion
        expand 'version':project.version, 'mcversion':project.minecraft.version
    }
        
    // copy everything else, thats not the mcmod.info
    from(sourceSets.main.resources.srcDirs) {
        exclude 'mcmod.info'
    }
}

I'm not too sure why that would happen, sorry. I don't have much experience with this.

Minecraft already uses several of your dependencies (e.g. commons-logging, commons-io, Guava), so I'd recommend removing any that you don't need. I'd also recommend using

srgExtra

like in the page I linked to move your shaded dependencies into a unique package (e.g.

org/apache/commons

to

mobycraft/repack/org/apache/commons

) to prevent conflicts with other mods that package different versions of the same libraries.

Adityagupta · March 13, 2016

@Choonster

I tried shading again and I am now getting:

> Could not find method srgExtra() for arguments [PK: org/apache/commons/logging org/mobycraft/org/apache/commons/logging] on root project 'mobycraft.forge'.

I have already looked at http://www.minecraftforge.net/forum/index.php?topic=37004.0 and the syntax seems to be fine in my case.

Here is how the minecraft section of my build.gradle file looks like:

minecraft {
    version = "1.8.9-11.15.1.1762"
    runDir = "run"
    
    // the mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   snapshot are built nightly.
    // stable_#            stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not allways work.
    // simply re-run your setup task after changing the mappings to update your workspace.
    mappings = "stable_20"
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.

    srgExtra "PK: org/apache/commons/logging org/mobycraft/org/apache/commons/logging"
}

Any idea what could be wrong?

Choonster · March 13, 2016

I think the documentation on Read the Docs is for ForgeGradle 1.2, there doesn't seem to be any documentation for 2.x. I'm looking through ForgeGradle's code, but I don't fully understand how Gradle works.

This PR changed the reobfuscation system, so now you need to specify reobfuscation per JAR task (like this).

I'll try this myself and see if it works.

Choonster · March 13, 2016

I've managed to get this working, you can see my code here.

I ended up using the Shadow plugin to package and relocate the dependency and just told ForgeGradle to reobfuscate the resulting JAR.

Adityagupta · March 14, 2016

Thanks for the reply, moved forward but getting a different error now.

I ended up using the Shadow plugin to package and relocate the dependency and just told ForgeGradle to reobfuscate the resulting JAR.

Now getting:

java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at com.github.dockerjava.jaxrs.DockerCmdExecFactoryImpl.<clinit>(DockerCmdExecFactoryImpl.java:82) ~[DockerCmdExecFactoryImpl.class:?]
at com.github.dockerjava.core.DockerClientBuilder.getDefaultDockerCmdExecFactory(DockerClientBuilder.java:35) ~[DockerClientBuilder.class:?]
at com.github.dockerjava.core.DockerClientBuilder.build(DockerClientBuilder.java:47) ~[DockerClientBuilder.class:?]
at org.redfrog404.mobycraft.DockerCommands.getDockerClient(DockerCommands.java:233) ~[DockerCommands.class:?]
at org.redfrog404.mobycraft.DockerCommands.ps(DockerCommands.java:193) ~[DockerCommands.class:?]
at org.redfrog404.mobycraft.DockerCommands.func_71515_b(DockerCommands.java:110) ~[DockerCommands.class:?]
at net.minecraft.command.CommandHandler.func_175786_a(CommandHandler.java:100) [j.class:?]
at net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:79) [j.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:815) [lm.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:794) [lm.class:?]

The updated build.gradle shows how I used your code.

Further thoughts?

Choonster · March 14, 2016

I've tried to test this here and it works in the deobfuscated client, but SLF4J refuses to load in the obfuscated client. I suspect it's something to do with the

ClassLoader

s used by Minecraft/Forge, but I don't have any idea how to fix it.

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java.lang.NoSuchMethodError on Minecraft launch

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