see 03/06 log

app/proguard-rules.pro

@@ -15,3 +15,6 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+-keep class com.blankj.utilcode.** { *; }
+-keepclassmembers class com.blankj.utilcode.** { *; }
+-dontwarn com.blankj.utilcode.**
\ No newline at end of file

subutil/build.gradle

 apply plugin: 'com.android.library'
-apply plugin: 'jacoco'
-
-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 = "${project.projectDir}/src/main/java"
-
-    sourceDirectories = files([mainSrc])
-    classDirectories = files([debugTree])
-    executionData = fileTree(dir: "$buildDir", includes: [
-            "jacoco/testDebugUnitTest.exec",
-            "outputs/code-coverage/connected/*coverage.ec"
-    ])
-}
 
 android {
     compileSdkVersion compile_sdk_version
@@ -29,9 +9,6 @@ android {
     }
 
     buildTypes {
-        debug {
-            testCoverageEnabled true
-        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

utilcode/build.gradle

 apply plugin: 'com.android.library'
-apply plugin: 'jacoco'
-
-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 = "${project.projectDir}/src/main/java"
-
-    sourceDirectories = files([mainSrc])
-    classDirectories = files([debugTree])
-    executionData = fileTree(dir: "$buildDir", includes: [
-            "jacoco/testDebugUnitTest.exec",
-            "outputs/code-coverage/connected/*coverage.ec"
-    ])
-}
 
 android {
     compileSdkVersion compile_sdk_version
@@ -29,9 +9,6 @@ android {
     }
 
     buildTypes {
-        debug {
-            testCoverageEnabled true
-        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'