title: JaCoCo returning 0% Coverage with Kotlin and Android 3.0
body: <p>I am trying to check my code coverage for a test case that I wrote in Kotlin. When I execute <code>./gradlew createDebugCoverageReport --info</code>, my coverage.ec file is empty and my reports indicate that I have 0% coverage. Please note, the test cases are 100% successful. Can anyone think of any reasons my coverage.ec file keeps returning 0 bytes?</p>
  
  <p>I have searched everywhere with no luck. </p>
  
  <pre><code>apply plugin: 'com.android.library'
  
  apply plugin: 'kotlin-android'
  
  apply plugin: 'kotlin-android-extensions'
  
  apply plugin: 'jacoco'
  
  
  android {
      compileSdkVersion 25
      buildToolsVersion "25.0.3"
      defaultConfig {
          minSdkVersion 16
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
  
      buildTypes {
          debug {
              testCoverageEnabled = true
          }
          release {
              minifyEnabled false
              testCoverageEnabled = true
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  
  
      testOptions {
          unitTests.all {
              jacoco {
                  includeNoLocationClasses = true
              }
          }
      }
  
  }
  
  dependencies {
      implementation fileTree(include: ['*.jar'], dir: 'libs')
      androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
      implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
      implementation 'com.android.support:appcompat-v7:25.4.0'
      testImplementation 'junit:junit:4.12'
      implementation files('pathtosomejarfile')
  
  }
  
  
  
  jacoco {
      toolVersion = "0.7.6.201602180812"
      reportsDir = file("$buildDir/customJacocoReportDir")
  
  }
  
  
  
  task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest', 'createDebugCoverageReport']) {
  
      reports {
          xml.enabled = true
          html.enabled = true
      }
  
      def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']
      def debugTree = fileTree(dir: "${buildDir}/intermediates/classes/debug", excludes: fileFilter)
      def mainSrc = "${project.projectDir}/src/androidTest/java"
  
      sourceDirectories = files([mainSrc])
      classDirectories = files([debugTree])
      executionData = fileTree(dir: "$buildDir", includes: [
              "jacoco/testDebugUnitTest.exec",
              "outputs/code-coverage/connected/*coverage.ec"
      ])
  }
  </code></pre>