loeschg loeschg - 1 month ago 6
Android Question

ClassCastException in Espresso test with Dagger 2 after upgrading to Android Gradle 2.2.0 plugin

Since updating to the Android 2.2.0 Gradle plugin, my Espresso tests have started failing with the following error:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp.app.debug/com.myapp.app.conversation.ConversationActivity}: java.lang.ClassCastException: com.myapp.app.conversation.data.SqlMessageStore cannot be cast to com.myapp.app.auth.UserScopedAccountStore
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassCastException: com.myapp.app.conversation.data.SqlMessageStore cannot be cast to com.myapp.app.auth.UserScopedAccountStore
at com.myapp.app.di.module.UserModule_UserScopedAccountStoreFactory.get(UserModule_UserScopedAccountStoreFactory.java:30)
at com.myapp.app.di.module.UserModule_UserScopedAccountStoreFactory.get(UserModule_UserScopedAccountStoreFactory.java:10)
at dagger.internal.DoubleCheck.get(DoubleCheck.java:47)
at com.myapp.app.di.module.UserModule_TokenInterceptorFactory.get(UserModule_TokenInterceptorFactory.java:30)
at com.myapp.app.di.module.UserModule_TokenInterceptorFactory.get(UserModule_TokenInterceptorFactory.java:10)
at dagger.internal.DoubleCheck.get(DoubleCheck.java:47)
at com.myapp.app.di.module.UserModule_AuthedOkHttpClientFactory.get(UserModule_AuthedOkHttpClientFactory.java:30)
at com.myapp.app.di.module.UserModule_AuthedOkHttpClientFactory.get(UserModule_AuthedOkHttpClientFactory.java:10)
at dagger.internal.DoubleCheck.get(DoubleCheck.java:47)
at com.myapp.app.di.module.UserModule_HipChatClientFactory.get(UserModule_HipChatClientFactory.java:81)
at com.myapp.app.di.module.UserModule_HipChatClientFactory.get(UserModule_HipChatClientFactory.java:17)
at dagger.internal.DoubleCheck.get(DoubleCheck.java:47)
at com.myapp.app.di.module.UserModule_LogoutFactory.get(UserModule_LogoutFactory.java:29)
at com.myapp.app.di.module.UserModule_LogoutFactory.get(UserModule_LogoutFactory.java:10)
at dagger.internal.DoubleCheck.get(DoubleCheck.java:47)
at com.myapp.app.di.module.UserModule_SignedInPresenterFactory.get(UserModule_SignedInPresenterFactory.java:69)
at com.myapp.app.di.module.UserModule_SignedInPresenterFactory.get(UserModule_SignedInPresenterFactory.java:16)
at com.myapp.app.BaseSignedInActivity_MembersInjector.injectPresenter(BaseSignedInActivity_MembersInjector.java:44)
at com.myapp.app.conversation.ConversationActivity_MembersInjector.injectMembers(ConversationActivity_MembersInjector.java:40)
at com.myapp.app.conversation.ConversationActivity_MembersInjector.injectMembers(ConversationActivity_MembersInjector.java:9)
at com.myapp.app.di.DaggerUserComponent.inject(DaggerUserComponent.java:993)
at com.myapp.app.conversation.ConversationActivity.inject(ConversationActivity.java:149)
at com.myapp.app.BaseSignedInActivity.onCreate(BaseSignedInActivity.java:59)
at com.myapp.app.conversation.ConversationActivity.onCreate(ConversationActivity.java:57)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.support.test.runner.MonitoringInstrumentation.callActivityOnCreate(MonitoringInstrumentation.java:532)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
... 10 more


Running the app works completely fine. Changing this back to the Android 2.1.3 Gradle plugin fixes the espresso problems (with no other changes). I've attempted cleaning, rebuilding, and restarting the gradle daemon to no avail. I also tried updating to 2.2.1 and bumping to the latest Dagger 2 version (2.7).

Answer

Is it possible you have duplicate dependencies? Try using compileOnly instead of compile for test dependencies.