Tasks for doclava and jars

build.gradle

android {
    configurations {
        //Used to hold the doclava dependency configuration
        doclava

        //Used to hold the other dependency configuration
        classpaths
    }
    
    dependencies {
        compile fileTree(dir: 'libs', include: ['*.jar'])
        classpaths compile 'com.squareup.retrofit2:retrofit:2.0.0'
        classpaths compile 'com.squareup.retrofit2:converter-gson:2.0.0'
        doclava 'com.google.doclava:doclava:1.0.6'
    }

    //Create doclava tasks
    libraryVariants.all { variant ->
        task("generate${variant.name.capitalize()}Javadoc", type: Javadoc) {
            source = variant.javaCompile.source
            title = null
            classpath = files(configurations.classpaths.files.asType(List), android.getBootClasspath())
            options.docletpath = configurations.doclava.files.asType(List)
            options.memberLevel = JavadocMemberLevel.PUBLIC
            options.addStringOption "hdf project.name", "Change Document Name Here"
            options {
                doclet 'com.google.doclava.Doclava'
                encoding = 'UTF-8'
            }
            exclude '**/BuildConfig.java'
            exclude '**/R.java'
        }
    }

    //Create jar tasks
    libraryVariants.all { variant ->
        def name = variant.buildType.name
        if (name.equals(com.android.builder.core.BuilderConstants.DEBUG)) {
            return //ignore debug
        }
        def task = project.tasks.create "jar${name.capitalize()}", Jar
        task.dependsOn variant.javaCompile
        task.from variant.javaCompile.destinationDir
        artifacts.add('archives', task);
    }
}