Exclude the android folder from coverage

app-test/build.gradle

@@ -18,11 +18,16 @@ dependencies {
 
 
 jacocoTestReport {
-    // Add Android sources/classes for coverage
+    /*
-    // We can't use additionalClassDirs because of this:
+    Alright, setting up Jacoco the right way is massively confusing.
-    // http://stackoverflow.com/a/17411305/1454178
+    Normally, you'd use something like additionalClassDirs to add the folders you need.
-    // Additionally, for whatever reason, the exclude() call doesn't work
+    However, we want to exclude the android/ folder, and likely will need something else
-    // inside doFirst {}, please don't move this.
+    in the future. In order to do this though, we need the doFirst block. See SO here:
+        http://stackoverflow.com/a/17411305/1454178
+
+    Additionally, to properly exclude, we need to run that code outside the doFirst block.
+    No clue why this is, but please don't change this without extensive testing.
+    */
     def jacocoExcludes = [
             "android/**/*"
     ]
@@ -33,12 +38,12 @@ jacocoTestReport {
         classDirectories = firstVariant.javaCompile.outputs.files
     }
 
+    // Back to your regularly scheduled Jacoco
+    dependsOn test
+
     reports {
         xml.enabled true
         csv.enabled false
         html.destination "${buildDir}/jacocoHtml"
     }
 }
-
-// Code coverage should depend on the tests
-project.jacocoTestReport.dependsOn project.test