How to create single jar with FatJar (Gradle)

Question

I want to generate a single Jar with multiple modules and dependencies. I installed FatJar Plugin but I got the below error:

My Code:

Trying shadowJar

Error:(61, 0) Could not find method shadowJar() for arguments [build_eqgfg4x39smehqcteaccdy4k6$_run_closure4@780b32c6] on project ':SDKFramework' of type org.gradle.api.Project. Open File

My build.gradle (module)

apply plugin: 'com.github.johnrengelman.shadow'
apply plugin: 'com.android.library'
apply plugin: 'groovyx.grooid.groovy-android'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 19
        versionCode 1
        versionName "0.1.1"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    lintOptions {
        abortOnError false
    }
}

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.0'
        classpath 'org.codehaus.groovy:gradle-groovy-android-plugin:0.3.10'
        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.3'
    }
}

dependencies {
    compile 'com.android.support:appcompat-v7:22.2.0'
    compile project(':framework2')
    compile 'com.google.code.gson:gson:2.6.1'
    compile 'junit:junit:4.12'
}

shadowJar {

}

1. "is this the crusty crab?" 2. your classpath is in the wrong build.gradle 3. your task too — DaMachk, Jun 14 '16 at 09:11
Ok. Now I have the code in my module build.gradle but the error remains — Patrick, Jun 14 '16 at 09:26
try this: https://gist.github.com/kesco/77132337ab0d8dc81016 — RaGe, Jun 14 '16 at 17:22
Apply the shadow plugin in the first statement in the build.gradle — yonisha, Jun 16 '16 at 09:55
@yonisha sorry, same error :( I do not want to bother you anymore — Patrick, Jun 16 '16 at 10:57

yonisha · Answer 1 · 2016-06-16T11:08:25.260

2

Very simple solution is to use the shadow plugin.
Using the plugin is very straightforward:

Declare the plugin as the first statement in your build.grade:

plugins {
id "com.github.johnrengelman.shadow" version "1.2.3"
}

Apply either java or groovy plugin.

apply plugin: 'java'

or

apply plugin: 'groovy'

Refresh the project and run the newly 'shadowJar' task.

This plugin also enable you to exclude dependencies, redirect (rename) packages' names and much more.

edited Jun 16 '16 at 11:08

answered Jun 14 '16 at 17:40

yonisha

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If I use: shadowJar { mergeServiceFiles() } Give me next error: the proyect may be using a version of the Android Gradle Plug-in that does not contain the method (e.g. 'testCompile' was added in 1.1.0) – Patrick Jun 15 '16 at 10:36
what is mergeServiceFiles function? – yonisha Jun 15 '16 at 13:46
It´s a shadow function for test. Gradle don´t recognize shadowJar methods but plugin was installed correctly – Patrick Jun 16 '16 at 06:56
Do you have java plugin or groovy plugin enabled? it is required. updated my answer – yonisha Jun 16 '16 at 07:05
Updated my question too – Patrick Jun 16 '16 at 08:11

score 0 · Answer 2 · edited May 24 '17 at 09:22

0

You should add the following line to your build.gradle:

apply plugin: 'java'

Because, gradle don't have "Jar" task by default. You can read about that, here https://docs.gradle.org/current/dsl/org.gradle.api.tasks.bundling.Jar.html

If you using android, then add here:

apply plugin: 'android'

or

apply plugin: 'com.android.library'

edited May 24 '17 at 09:22

MartyIX

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answered Jun 14 '16 at 10:01

Ivan

992
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I tried. The 'java' plugin has been applied, but is not compatible with de android plugins – Patrick Jun 14 '16 at 10:08
just add clear android plugin: apply plugin: 'com.android.library' – Ivan Jun 14 '16 at 10:24
apply plugin: 'android' is deprecated and you cannot combine apply plugin: 'com.android.library' with apply plugin: 'java' – Patrick Jun 14 '16 at 10:39
Of cause, use just apply plugin: 'com.android.library'. Okay, look at http://stackoverflow.com/questions/19307341/android-library-gradle-release-jar – Ivan Jun 14 '16 at 12:01

score 0 · Accepted Answer · answered Jun 14 '16 at 14:18

Well, I found solution:

task createJar(type: Jar) {
    from {
        List<File> allFiles = new ArrayList<>();
        configurations.compile.collect {
            for (File f : zipTree(it).getFiles()) {
                if (f.getName().equals("classes.jar")) {
                    allFiles.addAll(zipTree(f).getAt("asFileTrees").get(0).getDir())
                }
            }
        }
        allFiles.add(new File('build/intermediates/classes/release'))
        allFiles // To return the result inside a lambda
    }
    archiveName('MySDK.jar')
}

This code generate a single jar with all classes.

How to create single jar with FatJar (Gradle)

3 Answers3