Test coverage with Jacoco on Android gradle project with injection frameworks like Dagger/Butterknife and Robolectric 2.3

build.gradle

apply plugin: 'jacoco'
apply plugin: 'idea'

jacoco {
    toolVersion = "0.7.0.201403182114"
}

jacocoTestReport {
    reports {
        xml.enabled = true
        html.enabled = true
    }

    classDirectories = fileTree(
            dir: '../my-project/build/intermediates/classes/debug',
            exclude: [
                    '**/R*.class',
                    '**/BuildConfig*',
                    '**/*$*.class',
                    '**/*$*.java']
    )

    additionalSourceDirs = files([
            '../my-project/src/main/java',
            '../my-project/build/generated/source/buildConfig/debug',
            '../my-project/build/generated/source/r/debug'])

    executionData = files('build/jacoco/testDebug.exec')
}

idea {
    module {
        testOutputDir = file('build/outputs/test-classes/debug')
    }
}