仅从android O开始支持com.android.tools.r8.errors.a:MethodHandle.invoke和MethodHandle.invokeExact

我正在开发android本机应用程序，我为他们准备了一个库项目，其中包含了这些应用程序的所有常用工具。 我正在用jfrog artifactory导入我的库，它工作得很好；现在我想使用git和子模块将我的库作为一个模块放入我的项目中，以便能够同时在应用程序和库上工作。 但是现在（在我包含两个模块（应用程序和库）的项目中），构建失败了。。。 我以前试过很多方法在这里寻求帮助。。。我认为问题来自两个模块之间的重复依赖关系，因为没有库子模块构建是可以的

这里是堆栈跟踪的开始：

C:\Users\sri\.gradle\caches\transforms-2\files-2.1\841047937c984e1ac263db2768d03619\jetified-objenesis-3.0.1.jar: D8: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)
Stack trace:
com.android.tools.r8.errors.a: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)
        at com.android.tools.r8.errors.a.a(:7)
...........
//end 
* What went wrong:
Execution failed for task ':app:dexBuilderDebug'.
> There was a failure while executing work items
   > A failure occurred while executing com.android.build.gradle.internal.dexing.DexWorkAction
      > Failed to process: C:\Users\sri\.gradle\caches\transforms-2\files-2.1\841047937c984e1ac263db2768d03619\jetified-objenesis-3.0.1.jar

1。Application build.gradle文件

顶级：

buildscript {
    ext.versions = [
            'kotlin'            : '1.4.0',
            'powermock'         : '2.0.7',
            'constraintLayout'  : '2.0.0',
            'butterknife'       : '10.2.3',
            'jsonwebtoken'      : '0.10.7',
            'retrofit'          : '2.9.0',
            'supportLibrary'    : '1.1.0',
            'module'            : '3.5.10',
            'okhttp'            : '4.8.1',
            'mockito'           : '3.3.3',
            'lifecycleVersion'  : '2.2.0',
            'junit'             : '4.13',
            'eventBus'          : '3.2.0',
            'picasso'           : '2.71828',
            'swipeRefreshLayout': '1.1.0',
            'cardView'          : '1.0.0',
            'viewPager'         : '1.0.0',
            'material'          : '1.3.0-alpha02',
            'rxjava'            : '3.0.4',
            'rxandroid'         : '3.0.0',
            'spoon'             : '1.7.1'
    ]
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.1'
        classpath "io.realm:realm-gradle-plugin:7.0.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"
        classpath 'com.google.gms:google-services:4.3.3'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.2.0'
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

应用程序级别：

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'realm-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'com.google.firebase.crashlytics'

//.. signing removed ... //

android {
    signingConfigs {
        //........
    }
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com......."
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 42
        versionName versionProperties['versionName']
        vectorDrawables.useSupportLibrary = true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        ndk.abiFilters 'arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64'

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
        debug {
            applicationIdSuffix ".debug"
            versionNameSuffix '-debug'
        }
    }
    lintOptions {
        abortOnError false
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildFeatures {
        viewBinding true
        dataBinding true
    }
    configurations {
        all*.exclude group: 'xmlpull', module: 'xmlpull'
        all*.exclude group: 'xpp3', module: 'xpp3_min'
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    androidTestImplementation('androidx.test.espresso:espresso-core:3.3.0-rc03', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation project(':mob-android-qualiacmodule:qualiac-module')
    implementation "androidx.appcompat:appcompat:1.2.0"
    implementation "com.google.android.material:material:${versions.material}"
    implementation "androidx.constraintlayout:constraintlayout:${versions.constraintLayout}"
    implementation "androidx.swiperefreshlayout:swiperefreshlayout:${versions.swipeRefreshLayout}"
    implementation "androidx.cardview:cardview:${versions.cardView}"
    implementation 'androidx.annotation:annotation:1.1.0'
    implementation 'com.google.firebase:firebase-analytics:17.5.0'
    implementation 'com.google.firebase:firebase-crashlytics:17.2.1'
    implementation 'com.google.android.gms:play-services-maps:17.0.0'

    implementation 'com.google.firebase:firebase-ml-vision:24.1.0'
    implementation 'com.google.android.gms:play-services-vision-image-label:18.0.5'
    implementation 'com.google.android.gms:play-services-vision-common:19.1.1'
    implementation 'com.google.android.gms:play-services-vision:20.1.1'

    kapt "com.jakewharton:butterknife-compiler:${versions.butterknife}"
    implementation "com.jakewharton:butterknife:${versions.butterknife}"
    implementation "com.squareup.retrofit2:retrofit:${versions.retrofit}"
    implementation "com.squareup.retrofit2:converter-gson:${versions.retrofit}"
    implementation "com.squareup.retrofit2:adapter-rxjava2:${versions.retrofit}"
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:${versions.kotlin}"
    implementation "com.squareup.okhttp3:logging-interceptor:${versions.okhttp}"
    implementation "com.squareup.okhttp3:mockwebserver:${versions.okhttp}"
    implementation "com.squareup.okhttp3:okhttp:${versions.okhttp}"
    implementation "org.greenrobot:eventbus:${versions.eventBus}"
    implementation "io.reactivex.rxjava3:rxjava:${versions.rxjava}"
    implementation "io.reactivex.rxjava3:rxandroid:${versions.rxandroid}"

    implementation "com.squareup.picasso:picasso:${versions.picasso}"
    implementation 'com.jakewharton.timber:timber:4.7.1'
    implementation "androidx.core:core-ktx:1.3.1"
    implementation "android.arch.lifecycle:extensions:1.1.1"
    api 'com.google.guava:guava:29.0-jre'
    implementation "androidx.viewpager2:viewpager2:${versions.viewPager}"
    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.0'
    implementation 'androidx.navigation:navigation-ui-ktx:2.3.0'
    // ViewModel
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:${versions.lifecycleVersion}"
    // LiveData
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:${versions.lifecycleVersion}"
    // alternately - if using Java8, use the following instead of lifecycle-compiler
    implementation "androidx.lifecycle:lifecycle-common-java8:${versions.lifecycleVersion}"

    testImplementation 'junit:junit:4.13'

    androidTestImplementation "com.squareup.spoon:spoon-client:${versions.spoon}"
    androidTestImplementation 'junit:junit:4.13'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0-rc03'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test:rules:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.3.0-rc03'
}

kapt {
    generateStubs = true
}

android.applicationVariants.all { variant ->
    variant.outputs.all {
        def appName = "jobs"
        outputFileName = variant.name == "debug" ? "app-debug.apk" : "${appName}-${variant.name}-${variant.versionName}.apk"
    }
}

apply plugin: 'com.google.gms.google-services'

2。Library build.gradle文件

//顶级

buildscript {
    ext.versions = [
            'kotlin'            : '1.3.72',
            ......
    ]
    repositories {
        jcenter()
        google()
        mavenCentral()
    }
    dependencies {
        classpath "io.realm:realm-gradle-plugin:7.0.1"
        classpath 'com.android.tools.build:gradle:4.0.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.android.support:support-v4:28.0.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"
        classpath "org.jfrog.buildinfo:build-info-extractor-gradle:4.15.2"

    }
}
allprojects {

    repositories {
        jcenter()
        google()
        mavenCentral()
        maven {
            url 'https://maven.fabric.io/public'
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

//图书馆级

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'realm-android'
apply plugin: 'com.jfrog.artifactory'
apply plugin: 'maven-publish'
apply plugin: 'kotlin-android-extensions'

def libraryVersion = '3.5.10'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        vectorDrawables.useSupportLibrary = true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
        ndk.abiFilters 'arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64'
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    lintOptions {
        abortOnError false
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = "1.8"
    }
    viewBinding {
        enabled = true
    }
    dataBinding {
        enabled = true
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    androidTestImplementation('androidx.test.espresso:espresso-core:3.3.0-rc03', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation "androidx.appcompat:appcompat:${versions.supportLibrary}"
    implementation "com.google.android.material:material:${versions.material}"
    implementation "androidx.constraintlayout:constraintlayout:${versions.constraintLayout}"
    implementation "androidx.swiperefreshlayout:swiperefreshlayout:${versions.swipeRefreshLayout}"

    implementation 'com.google.firebase:firebase-ml-vision:24.0.3'
    implementation 'com.google.android.gms:play-services-vision-image-label:18.0.5'
    implementation 'com.google.android.gms:play-services-vision-common:19.1.1'
    implementation 'com.google.android.gms:play-services-vision:20.1.1'

    implementation 'com.google.android.gms:play-services-maps:17.0.0'
    implementation "androidx.cardview:cardview:${versions.cardView}"
    api 'com.google.firebase:firebase-core:17.4.4'
    implementation "com.squareup.retrofit2:retrofit:${versions.retrofit}"
    implementation "com.squareup.retrofit2:converter-gson:${versions.retrofit}"
    implementation "com.squareup.retrofit2:adapter-rxjava2:${versions.retrofit}"
    implementation "com.squareup.retrofit2:retrofit-mock:${versions.retrofit}"
    implementation "org.greenrobot:eventbus:${versions.eventBus}"
    api "com.squareup.okhttp3:logging-interceptor:${versions.okhttp}"
    implementation "com.squareup.okhttp3:mockwebserver:${versions.okhttp}"
    implementation "com.squareup.okhttp3:okhttp:${versions.okhttp}"
    api "io.jsonwebtoken:jjwt-api:${versions.jsonwebtoken}"
    runtimeOnly "io.jsonwebtoken:jjwt-impl:${versions.jsonwebtoken}"
    runtimeOnly("io.jsonwebtoken:jjwt-orgjson:${versions.jsonwebtoken}") {
        exclude group: 'org.json', module: 'json'
    }
    implementation "com.squareup.picasso:picasso:${versions.picasso}"
    implementation "io.reactivex.rxjava3:rxjava:${versions.rxjava}"
    implementation "io.reactivex.rxjava3:rxandroid:${versions.rxandroid}"
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:${versions.kotlin}"
    implementation "androidx.core:core-ktx:1.3.1"

    testImplementation "junit:junit:${versions.junit}"
    implementation "org.powermock:powermock-module-junit4:${versions.powermock}"
    implementation "org.powermock:powermock-module-junit4-rule:${versions.powermock}"
    implementation "org.powermock:powermock-api-mockito2:${versions.powermock}"
    implementation "org.powermock:powermock-classloading-xstream:${versions.powermock}"
    testImplementation 'org.mockito:mockito-core:3.4.6'

    implementation 'androidx.test:core:1.2.0'
    implementation 'androidx.test.ext:junit:1.1.1'
    implementation 'androidx.test:runner:1.2.0'
    implementation 'androidx.test:rules:1.2.0'
    implementation "androidx.test.espresso:espresso-core:${versions.espresso}"
    implementation "androidx.test.espresso:espresso-contrib:${versions.espresso}"
    implementation "com.squareup.spoon:spoon-client:${versions.spoon}"
    implementation "androidx.viewpager2:viewpager2:${versions.viewPager}"
    // ViewModel
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:${versions.lifecycleVersion}"
    // LiveData
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:${versions.lifecycleVersion}"
    // alternately - if using Java8, use the following instead of lifecycle-compiler
    implementation "androidx.lifecycle:lifecycle-common-java8:${versions.lifecycleVersion}"

    androidTestImplementation 'androidx.test:core:1.2.0'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test:rules:1.2.0'
    androidTestImplementation "androidx.test.espresso:espresso-contrib:${versions.espresso}"

    api 'com.google.guava:guava:29.0-jre'
    implementation "androidx.lifecycle:lifecycle-extensions:${versions.lifecycleVersion}"

}

错误消息

MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)

是由输入程序使用其中一种方法（

MethodHandle.invoke

或

MethodHandle.invokeExact

）引起的

下面的代码演示了这一点：

        try {
            MethodHandles.Lookup lookup = MethodHandles.publicLookup();
            MethodType methodType = MethodType.methodType(String.class, char.class, char.class);
            MethodHandle replaceMethodHandle =
                lookup.findVirtual(String.class, "replace", methodType);

            String output = (String) replaceMethodHandle.invoke("jovo", 'o', 'a');
            System.out.println(output);
        } catch (Throwable e) {
            System.out.println("Exception from MethodHandle code " + e);
        }

如果项目

minSdkLevel

为26或以上，则此代码可以正常生成。在

MIN_SDK

级别检查下不可能有这样的代码，因为Android代码需要仅由Android O支持的DEX代码版本

---

您将需要确定哪些输入使用了如下的

MethodHandle

请注意，在Android Studio中调试时，如果受攻击的调试设备运行的是Android O或更高版本，则此代码将起作用。这是由于Android Studio为调试构建注入所附调试设备的API级别，覆盖了为项目配置的

minSdkLevel

。

我找到了一个解决方案：

使用命令

gradlew:app:dependencies

我看到导致问题的依赖项（org.objeness:objeness:2.6）被我的一个依赖项使用：org.powermock:powermock-api-mockito2:2.0.7。这是一个依赖项，我只在测试中使用一次，而且它可以被另一个（我已经使用过的）替换来做同样的事情，所以我决定删除这个依赖项，现在它工作得很好

结论：使用此命令确定哪个库正在使用导致问题的.jar，并查看该库是否真的对您有用

gradlew :<yourmodule>:dependencies 

gradlew:：依赖关系

我的解决方案是在build.gradle末尾添加以下行

allprojects {
    configurations.all {
        resolutionStrategy.force 'org.objenesis:objenesis:2.6'
    }
}

---

多亏了

如果使用mockk，可能会发生此错误

如果是，请更换：

androidTestImplementation组：'io.mockk'，名称：'mockk'，版本：mockk_version

作者：

androidTestImplementation组：'io.mockk'，名称：'mockk android'，版本：mockk_version

---

请参见

“您需要解析哪些输入使用了这样的MethodHandle”->如何解析？我的代码从不调用MethodHandle，它可能来自外部库，但如何找到它呢？问题是，如果我在JFrogarty中包含我的库，那么当我尝试使用子模块时，它就不起作用了……您好。如果您的模块名为“app”（可能是这种情况），您可以在项目目录的终端中使用gradlew:app:dependencies，然后（在该命令显示的所有行中）查找使用导致问题的依赖项的库。也可以查看以获得更多帮助。感谢您提供的解决方案。在我的例子中，我无法将SDK增加到26，但我需要升级mockito