title: Android compile loop after added .jar files which use java 8
body: <p>I need to use same nlp libraries in my android application. In particular these libraries need java 8. I added the .jar files in android project, 
  added </p>
  
  <pre><code>android {
      compileSdkVersion 25
      buildToolsVersion "25.0.2"
      defaultConfig {
          applicationId "com.example.kekko.nlp_api_25"
          minSdkVersion 25
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
          jackOptions {
              enabled true
          }
      }
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  </code></pre>
  
  <p>to the app.grandle, but when I run the project, the Grandle console go in loop with <code>:app:transformClassesWithPreJackPackagedLibrariesForDebug</code></p>