with AGP 4.2.x, 7.0.0 / java.lang.IllegalAccessError: Method 'boolean[] com.sebiya.myapplication.ktx.LiveDataExtKt.$jacocoInit()' is inaccessible to class 'com.sebiya.myapplication.ktx.LiveDataExtTest$test$1' during instrumentation test

Versions

• Hilt: 2.38.1
• AGP: 4.2.x, 7.0.0
• Gradle: 7.0.2-all

I’ve got below exception during android instrumentation test with hilt

--------- beginning of main
08-10 11:05:58.239 10364 25204 25237 E TestRunner: failed: test(com.sebiya.myapplication.ktx.LiveDataExtTest)
08-10 11:05:58.239 10364 25204 25237 E TestRunner: ----- begin exception -----
08-10 11:05:58.240 10364 25204 25237 E TestRunner: java.lang.IllegalAccessError: Method 'boolean[] com.sebiya.myapplication.ktx.LiveDataExtKt.$jacocoInit()' is inaccessible to class 'com.sebiya.myapplication.ktx.LiveDataExtTest$test$1' (declaration of 'com.sebiya.myapplication.ktx.LiveDataExtTest$test$1' appears in /data/app/com.sebiya.myapplication.test-M9bh20Enr1T3hIa4Y5a1tA==/base.apk!classes4.dex)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at com.sebiya.myapplication.ktx.LiveDataExtTest$test$1.invokeSuspend(LiveDataExtTest.kt:11)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at android.os.Handler.handleCallback(Handler.java:883)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at android.os.Handler.dispatchMessage(Handler.java:100)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at android.os.Looper.loop(Looper.java:237)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at android.app.ActivityThread.main(ActivityThread.java:8167)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at java.lang.reflect.Method.invoke(Native Method)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
08-10 11:05:58.240 10364 25204 25237 E TestRunner: ----- end exception -----
08-10 11:05:58.241 10364 25204 25237 I TestRunner: finished: test(com.sebiya.myapplication.ktx.LiveDataExtTest)

java.lang.IllegalAccessError: Method 'boolean[] com.sebiya.myapplication.ktx.LiveDataExtKt.$jacocoInit()' is inaccessible to class 'com.sebiya.myapplication.ktx.LiveDataExtTest$test$1' (declaration of 'com.sebiya.myapplication.ktx.LiveDataExtTest$test$1' appears in /data/app/com.sebiya.myapplication.test-M9bh20Enr1T3hIa4Y5a1tA==/base.apk!classes4.dex)
	at com.sebiya.myapplication.ktx.LiveDataExtTest$test$1.invokeSuspend(LiveDataExtTest.kt:11)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at android.os.Handler.handleCallback(Handler.java:883)
	at android.os.Handler.dispatchMessage(Handler.java:100)
	at android.os.Looper.loop(Looper.java:237)
	at android.app.ActivityThread.main(ActivityThread.java:8167)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)

it seems to happen when using an inline function in test target package.

app module code (test target package)

LiveDataExt.kt

inline fun <T> LiveData<T>.filter(crossinline  predicate: (T) -> Boolean): LiveData<T> {
    return MediatorLiveData<T>().apply {
        addSource(this@filter) {
            if (predicate(it)) {
                value = it
            }
        }
    }
}

app module test (test package)

LiveDataExtTest.kt

class LiveDataExtTest {
    @Test
    fun test() = runBlocking(Dispatchers.Main) {
        MutableLiveData("test").filter { it != null }.observeForever {
            Log.d("test", it)
        }
    }
}

An exception is not thrown when testing with the following combinations.

• agp 4.1.0 + hilt 2.38.1
• agp 7.0.0 + hilt 2.29-alpha

you can reproduce issue with below repository https://github.com/kshdreams/agp_hilt_jacoco_runtime_issue

[danysantiago]

The reason why the issue is not in 2.29-alpha or when AGP 4.1.0 is used, is because it was not until Hilt 2.31 that Hilt migrated to using the newer ASM transform that is available in AGP 4.2.0.

Looks like the tools team filled a new bug for this: https://issuetracker.google.com/197065758, hopefully a fix for this will be available soon.

[danysantiago]

Will close this one out since the fix is in AGP and there is no code change for us.