AGP 8.0 java.lang.NoClassDefFoundError: ExternalSyntheticLambda2

[rohit5ram]

Platform: Android 19

build.gradle:
minSdkVersion : 19
compileSdkVersion = 33
targetSdkVersion = 33
buildToolsVersion = '33.0.1'

Retrofix :
classpath 'com.github.sgtsilvio.gradle:android-retrofix:0.5.0'
implementation "net.sourceforge.streamsupport:android-retrostreams:1.7.4"
implementation "net.sourceforge.streamsupport:android-retrofuture:1.7.4"

hivemq : implementation "com.hivemq:hivemq-mqtt-client-websocket:1.3.1"

Application is crashing after upgrading to Android Gradle Plugin from 7.4 to 8.0

`Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda1>
18:12:54.480 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda1>
18:12:54.484 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda2>
18:12:54.484 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda2>
18:12:54.485 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda0>
18:12:54.486 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttClientTransportConfigImplBuilder$$ExternalSyntheticLambda0>
18:12:54.498 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda2>
18:12:54.498 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda2>
18:12:54.501 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda0>
18:12:54.501 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda0>
18:12:54.502 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda1>
18:12:54.504 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda1>
18:12:54.530 I Rejecting re-init on previously-failed class java.lang.Class<io.netty.util.internal.LongAdderCounter>
18:12:54.530 I Rejecting re-init on previously-failed class java.lang.Class<io.netty.util.internal.LongAdderCounter>
18:12:54.579 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda0>
18:12:54.579 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda0>
18:12:54.581 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda1>
18:12:54.581 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda1>
18:12:54.583 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda2>
18:12:54.583 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClientBuilder$$ExternalSyntheticLambda2>
18:12:54.592 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda3>
18:12:54.592 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda3>
18:12:54.594 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda2>
18:12:54.595 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda2>
18:12:54.606 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda4>
18:12:54.606 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda4>
18:12:54.607 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda1>
18:12:54.607 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda1>
18:12:54.608 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda5>
18:12:54.608 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttRxClient$$ExternalSyntheticLambda5>
18:12:54.614 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.util.collections.ImmutableElement$ElementSpliterator>
18:12:54.614 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.util.collections.ImmutableElement$ElementSpliterator>
18:12:54.627 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda5>
18:12:54.627 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda5>
18:12:54.629 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda3>
18:12:54.629 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda3>
18:12:54.630 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda1>
18:12:54.631 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda1>
18:12:54.636 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda0>
18:12:54.637 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.MqttAsyncClient$$ExternalSyntheticLambda0>
18:12:54.639 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscriptionBuilder$$ExternalSyntheticLambda0>
18:12:54.639 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscriptionBuilder$$ExternalSyntheticLambda0>
18:12:54.641 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda2>
18:12:54.641 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda2>
18:12:54.642 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda3>
18:12:54.642 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda3>
18:12:54.643 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda3>
18:12:54.643 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda1>
18:12:54.644 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda1>
18:12:54.645 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda0>
18:12:54.645 I Rejecting re-init on previously-failed class java.lang.Class<com.hivemq.client.internal.mqtt.message.subscribe.MqttSubscribeBuilder$$ExternalSyntheticLambda0>
18:12:54.648 I Rejecting re-init on previously-failed class

[rohit5ram]

@SgtSilvio Can you please help me? Its blocking!

[SgtSilvio]

Please share more information like minSdkVersion and Android version of your test device.
Also, do you use the android-retrofix plugin? If so, which version? Did you update to the latest version (0.5.0)?

[rohit5ram]

@SgtSilvio Updated the comment

build.gradle:
minSdkVersion : 19
compileSdkVersion = 33
targetSdkVersion = 33
buildToolsVersion = '33.0.1'

Retrofix : 
classpath 'com.github.sgtsilvio.gradle:android-retrofix:0.5.0'
implementation "net.sourceforge.streamsupport:android-retrostreams:1.7.4"
implementation "net.sourceforge.streamsupport:android-retrofuture:1.7.4"

hivemq : implementation "com.hivemq:hivemq-mqtt-client-websocket:1.3.1"

[SgtSilvio]

Can you share your build file.
Do you have everthikg configured as documented here: https://hivemq.github.io/hivemq-mqtt-client/docs/installation/android/

[rohit5ram]

@SgtSilvio I have configured everything as in https://hivemq.github.io/hivemq-mqtt-client/docs/installation/android/
Please find build.gradle files below

project/library build.gradle

apply plugin: 'com.android.library'
apply from: '../../constants.gradle'
android {
    compileSdkVersion project.ext.compileSdkVersion

    defaultConfig {
        minSdkVersion project.ext.minSdkVersion
        targetSdkVersion project.ext.targetSdkVersion
        consumerProguardFiles 'proguard-rules.pro'
        vectorDrawables.useSupportLibrary = true
    }
    packagingOptions {
        resources {
            excludes += ['META-INF/DEPENDENCIES.txt', 'META-INF/NOTICE.txt', 'META-INF/LICENSE.txt', 'META-INF/LICENSE']
        }
    }


    flavorDimensions "default"
    productFlavors {
        dev {
            setVersionName("DEV-" + rootProject.ext.releaseVersionName)
        }
        staging {
            setVersionName("STAGING-" + rootProject.ext.releaseVersionName)
        }
        production {}
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
        dummy {
            initWith release
        }
    }


    configurations {
        all*.exclude group: 'com.google.android', module: 'android'
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    lint {
        abortOnError true
        checkReleaseBuilds true
    }
    namespace 'com.xxx.xxx.xxx'
//    testOptions.unitTests.includeAndroidResources true

    libraryVariants.all { variant ->
        variant.outputs.all {
            outputFileName = "xxx-${variant.flavorName}-release.aar"
        }
        tasks.all { task ->
            if (task.name == "publish${variant.flavorName.capitalize()}PublicationToMavenLocal" ||
                    task.name == "publish${variant.flavorName.capitalize()}PublicationToXXXRepository") {
                task.dependsOn "assemble${variant.flavorName.capitalize()}Release"
            }
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))
    implementation "com.squareup.okhttp3:okhttp:$project.ext.okHttpVersion"

    implementation "com.hivemq:hivemq-mqtt-client-websocket:$project.ext.hivemqLibVersion"
    implementation "androidx.localbroadcastmanager:localbroadcastmanager:$project.ext.supportXLibVersion"
   
    implementation "com.github.bumptech.glide:glide:$project.ext.glideVersion"
    implementation "com.github.kenglxn.QRGen:android:$project.ext.qRGenVersion"

    api "com.google.protobuf:protobuf-java:$project.ext.protobufJavaVersion"
    api "com.google.android.material:material:$project.ext.materialVersion"
    api "com.github.tony19:logback-android:$project.ext.tonyLogbackVersion"
    api("com.papertrailapp:logback-syslog4j:$project.ext.papertrailVersion") {
        exclude group: 'ch.qos.logback'
    }
    api "com.google.guava:guava:$project.ext.guavaVersion"
    implementation "com.google.android.gms:play-services-location:$project.ext.playServicesLocationVersion"

    testImplementation 'junit:junit:4.13.2'
    testImplementation 'org.robolectric:robolectric:4.9'
    testImplementation 'org.mockito:mockito-core:4.5.1'
    testImplementation 'androidx.test:core:1.5.0'

    androidTestImplementation 'androidx.test:runner:1.5.2'
    androidTestImplementation 'androidx.test:rules:1.5.0'
    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
}

project/app build.gradle

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'com.github.sgtsilvio.gradle.android-retrofix'

apply from: '../constants.gradle'

def compileSdkVer = project.ext.compileSdkVersion
def buildToolsVer = project.ext.buildToolsVersion
android {
    compileSdkVersion compileSdkVer
    buildToolsVersion buildToolsVer

    defaultConfig {
        applicationId "xxx"
        minSdkVersion project.ext.minSdkVersion
        targetSdkVersion project.ext.targetSdkVersion
        versionName rootProject.ext.releaseVersionName
        versionCode rootProject.ext.releaseVersionCode
        multiDexEnabled true
        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
        vectorDrawables.useSupportLibrary = true
    }
    packagingOptions {
        resources {
            excludes += ['META-INF/DEPENDENCIES.txt', 'META-INF/NOTICE.txt', 'META-INF/LICENSE.txt', 'META-INF/LICENSE', 'META-INF/INDEX.LIST', 'META-INF/io.netty.versions.properties']
        }
    }


    signingConfigs {
        debug {
            storeFile file("debug.keystore")
        }
        release {
            storeFile file(System.getenv("xxx"))
            storePassword System.getenv("xxx")
            keyAlias System.getenv("xxx")
            keyPassword System.getenv("xxx")
        }
    }

    flavorDimensions "default"
    productFlavors {
        dev {
            setVersionName("DEV-" + rootProject.ext.releaseVersionName)
            applicationIdSuffix ".dev"
        }
        staging {
            setVersionName("STAGING-" + rootProject.ext.releaseVersionName)
            applicationIdSuffix ".staging"
        }
        production {}
    }
    buildTypes {
        release {
            shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
        dummy {
            initWith release
            versionNameSuffix "-DUMMY"
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    lint {
        abortOnError true
        checkReleaseBuilds true
    }
    namespace 'xxx'
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation project(':xxx')

    implementation "net.sourceforge.streamsupport:android-retrostreams:$project.ext.retrostreamsVersion"
    implementation "net.sourceforge.streamsupport:android-retrofuture:$project.ext.retrostreamsVersion"
    implementation "com.google.firebase:firebase-crashlytics:$project.ext.fbCrashlyticsVersion"
    implementation "com.google.firebase:firebase-analytics:$project.ext.fbAnalyticsVersion"
    implementation "androidx.lifecycle:lifecycle-process:$project.ext.lifecycleVersion"
    implementation "androidx.multidex:multidex:$project.ext.multidexVersion"
    implementation "com.google.android.gms:play-services-base:$project.ext.playServicesBaseVersion"

    // debugImplementation because LeakCanary should only run in debug builds.
    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.10'
}

project/build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        gradlePluginPortal()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.4.2'
        classpath 'com.google.gms:google-services:4.3.15'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.9.5'
        classpath 'gradle.plugin.com.github.sgtsilvio.gradle:android-retrofix:0.4.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        maven {
            url "https://jitpack.io"
        }
//        mavenLocal()
    }
}

ext {
    releaseVersionName = version
    releaseVersionCode = project.buildVersionCode()
}

[SgtSilvio]

classpath 'gradle.plugin.com.github.sgtsilvio.gradle:android-retrofix:0.4.1'

This line in your project/build.gradle means that you are using 0.4.1 of android-retrofix, and not 0.5.0. Please try to update the version.

[rohit5ram]

@SgtSilvio I tried but getting new error and its not connecting

18:55:05.054  I  18:55:05,059 |-ERROR in ch.qos.logback.core.joran.action.AppenderAction - Could not create an Appender of type [ch.qos.logback.core.FileAppender]. ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type ch.qos.logback.core.FileAppender
18:55:05.054  I  	at ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type ch.qos.logback.core.FileAppender
18:55:05.054  I  	at 	at ch.qos.logback.core.util.OptionHelper.instantiateByClassNameAndParameter(Unknown Source)
18:55:05.054  I  	at 	at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.action.AppenderAction.begin(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.spi.Interpreter.startElement(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.spi.Interpreter.startElement(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.spi.EventPlayer.play(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(Unknown Source)
18:55:05.064  I  	at 	at ch.qos.logback.classic.util.ContextInitializer.autoConfig(Unknown Source)
18:55:05.064  I  	at 	at org.slf4j.impl.LoggerServiceProvider.initializeLoggerContext(Unknown Source)
18:55:05.064  I  	at 	at org.slf4j.impl.LoggerServiceProvider.initialize(Unknown Source)
18:55:05.064  I  	at 	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:183)
18:55:05.074  I  	at 	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:170)
18:55:05.074  I  	at 	at org.slf4j.LoggerFactory.getProvider(LoggerFactory.java:455)
18:55:05.074  I  	at 	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:441)
18:55:05.074  I  	at 	at io.netty.util.internal.logging.Slf4JLoggerFactory.<init>(Slf4JLoggerFactory.java:42)
18:55:05.074  I  	at 	at io.netty.util.internal.logging.InternalLoggerFactory.newDefaultFactory(InternalLoggerFactory.java:44)
18:55:05.074  I  	at 	at io.netty.util.internal.logging.InternalLoggerFactory.getDefaultFactory(InternalLoggerFactory.java:69)
18:55:05.074  I  	at 	at io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:92)
18:55:05.074  I  	at 	at io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:85)
18:55:05.074  D  Setting up flushing for Thread[UploadHandlerThread,5,main]
18:55:05.084  D  Setting up flushing for Thread[LeakCanary-Heap-Dump,5,main]
18:55:05.084  I  	at 	at io.netty.util.internal.SystemPropertyUtil.<clinit>(SystemPropertyUtil.java:29)
18:55:05.084  I  	at 	at io.netty.util.NetUtil.<clinit>(NetUtil.java:125)
18:55:05.084  I  	at 	at com.hivemq.client.internal.util.InetSocketAddressUtil.create(InetSocketAddressUtil.java:32)
18:55:05.084  I  	at 	at com.hivemq.client.internal.mqtt.MqttClientTransportConfigImpl.<clinit>(MqttClientTransportConfigImpl.java:34)
18:55:05.084  I  	at 	at com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase.<init>(MqttRxClientBuilderBase.java:46)
18:55:05.084  I  	at 	at com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$Choose.<init>(MqttRxClientBuilderBase.java:216)
18:55:05.084  I  	at 	at com.hivemq.client.mqtt.MqttClient$-CC.builder(MqttClient.java:59)
18:55:05.084  I  	at 	at com.x.x.x.x.y.initMqtt(x.java:47)
18:55:05.084  I  	at 	at com.x.x.x.x.x.initMqtt(x.java:39)
18:55:05.084  I  	at 	at com.x.x.x.x.lambda$initCommAsync$0(x.java:65)
18:55:05.084  I  	at 	at com.x.x.x.x.$r8$lambda$Pb04Zbq33uHlz8E5QRw5cE3Gg0M(x.java:0)
18:55:05.084  I  	at 	at com.x.x.x.x$$ExternalSyntheticLambda0.run(R8$$SyntheticClass:0)
18:55:05.084  I  	at 	at com.x.x.x$x$1.run(x.java:92)
18:55:05.084  I  	at 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
18:55:05.084  I  	at 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
18:55:05.084  I  	at 	at java.lang.Thread.run(Thread.java:841)

[rohit5ram]

@SgtSilvio I think the root cause is this error. Its not able to connect to the broker
Could not find method javax.net.ssl.SSLParameters.setEndpointIdentificationAlgorithm, referenced from method com.hivemq.client.internal.mqtt.MqttClientSslConfigImpl$$ExternalSyntheticApiModelOutline0.m

[Xcreen]

Get the same error as rohit5ram.
I updated gradle from 7.4.2 to 8.0.2.
Using HiveMQ-Client 1.3.2 (also tested with 1.3.0 which worked under gradle 7.4.2) and android-retrofix 0.5.0.
Our minSDK is 23.
Seems to work fine on android 9 but throw the error on android 6 devices.

Log:

2023-09-13 10:12:38.144 System.err                  W  java.lang.NoClassDefFoundError: com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda1
2023-09-13 10:12:38.144 System.err                  W  	at com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase.transportConfig(MqttRxClientBuilderBase.java:131)
2023-09-13 10:12:38.144 System.err                  W  	at com.hivemq.client.internal.mqtt.MqttRxClientBuilder.transportConfig(MqttRxClientBuilder.java:39)
2023-09-13 10:12:38.144 System.err                  W  	at .service.MQTTBroadcastReceiverService.onHandleIntent(MQTTBroadcastReceiverService.java:122)
2023-09-13 10:12:38.144 System.err                  W  	at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:66)
2023-09-13 10:12:38.144 System.err                  W  	at android.os.Handler.dispatchMessage(Handler.java:102)
2023-09-13 10:12:38.144 System.err                  W  	at android.os.Looper.loop(Looper.java:148)
2023-09-13 10:12:38.144 System.err                  W  	at android.os.HandlerThread.run(HandlerThread.java:61)
2023-09-13 10:12:38.242 System.out                  I  ERROR:com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda1 | UncaughtException | java.lang.NoClassDefFoundError: com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase$$ExternalSyntheticLambda1
2023-09-13 10:12:38.242 System.out                  I  	at com.hivemq.client.internal.mqtt.MqttRxClientBuilderBase.transportConfig(MqttRxClientBuilderBase.java:131)
2023-09-13 10:12:38.242 System.out                  I  	at com.hivemq.client.internal.mqtt.MqttRxClientBuilder.transportConfig(MqttRxClientBuilder.java:39)
2023-09-13 10:12:38.242 System.out                  I  	at .service.MQTTBroadcastReceiverService.onHandleIntent(MQTTBroadcastReceiverService.java:122)
2023-09-13 10:12:38.242 System.out                  I  	at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:66)
2023-09-13 10:12:38.242 System.out                  I  	at android.os.Handler.dispatchMessage(Handler.java:102)
2023-09-13 10:12:38.242 System.out                  I  	at android.os.Looper.loop(Looper.java:148)
2023-09-13 10:12:38.242 System.out                  I  	at android.os.HandlerThread.run(HandlerThread.java:61)

---

Fixed, just forget to change this:

implementation 'net.sourceforge.streamsupport:android-retrostreams:1.7.4'
implementation 'net.sourceforge.streamsupport:android-retrofuture:1.7.4'

to

retrofix('net.sourceforge.streamsupport:android-retrostreams:1.7.4')
retrofix('net.sourceforge.streamsupport:android-retrofuture:1.7.4')