Paho MQTT v1.2.1 occur crash on Android

[kami4ka]

Please fill out the form below before submitting, thank you!

• Bug exists Release Version 1.2.1 ( Master Branch)
• [?] Bug exists in MQTTv3 Client on Snapshot Version 1.2.1-SNAPSHOT (Develop Branch)
• [?] Bug exists in MQTTv5 Client on Snapshot Version 1.2.1-SNAPSHOT (Develop Branch)

If this is a bug regarding the Android Service, please raise the bug here instead: https://github.com/eclipse/paho.mqtt.android/issues/new

I've updated the Paho MQTT version from 1.2.0 to 1.2.1 in my Android project (with 1.1.1 of paho android service) to prevent the application crashes and bugs (to have bug-free version of the library) and it crashes with the following reason:

Caused by: java.lang.ClassNotFoundException: Didn't find class "org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory"

Have someone faced the same problem?

[icraggs]

I'm not sure why this should be a problem on Android. If you have any more information that might help?

[kami4ka]

I'm following the next steps:

1. Runs the application with 1.2.0 version oh Paho MQTT - everything works fine.
2. Change version of org.eclipse.paho:org.eclipse.paho.client.mqttv3 to 1.2.1 in the Gradle file
3. Trying to run the application again (after Android Studio restart and cache invalidate. Also project clean and rebuild)
4. Application crashes with the following stacktrace:

 java.util.ServiceConfigurationError: org.eclipse.paho.client.mqttv3.spi.NetworkModuleFactory: Provider org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory not found
        at java.util.ServiceLoader.fail(ServiceLoader.java:225)
        at java.util.ServiceLoader.-wrap1(ServiceLoader.java)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:366)
        at java.util.ServiceLoader$1.next(ServiceLoader.java:448)
        at org.eclipse.paho.client.mqttv3.internal.NetworkModuleService.validateURI(NetworkModuleService.java:64)
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:454)
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:320)
        at org.eclipse.paho.android.service.MqttConnection.connect(MqttConnection.java:289)
        at org.eclipse.paho.android.service.MqttService.connect(MqttService.java:329)
        at org.eclipse.paho.android.service.MqttAndroidClient.doConnect(MqttAndroidClient.java:467)
        at org.eclipse.paho.android.service.MqttAndroidClient.access$200(MqttAndroidClient.java:76)
        at org.eclipse.paho.android.service.MqttAndroidClient$MyServiceConnection.onServiceConnected(MqttAndroidClient.java:115)
        at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1516)
        at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1544)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6780)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1500)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1390)
     Caused by: java.lang.ClassNotFoundException: org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory
        at java.lang.Class.classForName(Native Method)
        at java.lang.Class.forName(Class.java:400)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:364)
        at java.util.ServiceLoader$1.next(ServiceLoader.java:448) 
        at org.eclipse.paho.client.mqttv3.internal.NetworkModuleService.validateURI(NetworkModuleService.java:64) 
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:454) 
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:320) 
        at org.eclipse.paho.android.service.MqttConnection.connect(MqttConnection.java:289) 
        at org.eclipse.paho.android.service.MqttService.connect(MqttService.java:329) 
        at org.eclipse.paho.android.service.MqttAndroidClient.doConnect(MqttAndroidClient.java:467) 
        at org.eclipse.paho.android.service.MqttAndroidClient.access$200(MqttAndroidClient.java:76) 
        at org.eclipse.paho.android.service.MqttAndroidClient$MyServiceConnection.onServiceConnected(MqttAndroidClient.java:115) 
        at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1516) 
        at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1544) 
        at android.os.Handler.handleCallback(Handler.java:751) 
        at android.os.Handler.dispatchMessage(Handler.java:95) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6780) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1500) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1390) 
     Caused by: java.lang.ClassNotFoundException: Didn't find class "org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.my.cool.app.dev-2/base.apk"],nativeLibraryDirectories=[/data/app/com.my.cool.app.dev-2/lib/arm64, /system/lib64, /vendor/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at java.lang.Class.classForName(Native Method) 
        at java.lang.Class.forName(Class.java:400) 
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:364) 
        at java.util.ServiceLoader$1.next(ServiceLoader.java:448) 
        at org.eclipse.paho.client.mqttv3.internal.NetworkModuleService.validateURI(NetworkModuleService.java:64) 
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:454) 
        at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<init>(MqttAsyncClient.java:320) 
        at org.eclipse.paho.android.service.MqttConnection.connect(MqttConnection.java:289) 
        at org.eclipse.paho.android.service.MqttService.connect(MqttService.java:329) 
        at org.eclipse.paho.android.service.MqttAndroidClient.doConnect(MqttAndroidClient.java:467) 
        at org.eclipse.paho.android.service.MqttAndroidClient.access$200(MqttAndroidClient.java:76) 
        at org.eclipse.paho.android.service.MqttAndroidClient$MyServiceConnection.onServiceConnected(MqttAndroidClient.java:115) 
        at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1516) 
        at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1544) 
        at android.os.Handler.handleCallback(Handler.java:751) 
        at android.os.Handler.dispatchMessage(Handler.java:95) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6780) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1500) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1390) 

I'd like to help with all possible clue, so feel free to request anything that might be helpful.

[gaborauth]

Here is my stacktrace, same issue after 1.2.0 -> 1.2.1.

Caused by java.lang.ClassNotFoundException org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory

java.lang.Class.classForName (Class.java)
java.lang.Class.forName (Class.java:400)
java.util.ServiceLoader$LazyIterator.next (ServiceLoader.java:364)
java.util.ServiceLoader$1.next (ServiceLoader.java:448)
org.eclipse.paho.client.mqttv3.internal.NetworkModuleService.validateURI (NetworkModuleService.java:64)
org.eclipse.paho.client.mqttv3.MqttAsyncClient. (MqttAsyncClient.java:454)
org.eclipse.paho.client.mqttv3.MqttAsyncClient. (MqttAsyncClient.java:320)
org.eclipse.paho.client.mqttv3.MqttAsyncClient. (MqttAsyncClient.java:315)
live.iotguru.plugin.dashboard.ui.DashboardPresenter.mqttConnection (DashboardPresenter.kt:60)
live.iotguru.plugin.dashboard.ui.DashboardFragment.onViewCreated (DashboardFragment.kt:108)

[Y-Datsenko]

Hello, I have the same issue after upgrade from 1.2.0 to 1.2.1.

[nekontachik]

Hi, I will be grateful if you look, because I have the same issue

[icraggs]

I can't promise anything quick - I've not run an Android development environment for a while.

[bwt]

adding

-keep class * implements org.eclipse.paho.client.mqttv3.spi.NetworkModuleFactory

to the proguard / R8 config (proguard-rules.pro) solved the issue for me. The resulting APK is about 10k bigger

[accursoft]

I've got this after upgrading from 1.2.0 to 1.2.2 on desktop. Gradle shadowJar isn't including TCPNetworkModuleFactory .