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So, I have a list of tasks that I need to run based  on their priority when the android app is launched. I would like to make the Main Thread wait the finish of these tasks execution, but I would like to delegate the execution to background threads....
```runBlocking(Dispatchers.Main.immediate) {
    initialize(application)
}```
```suspend fun initialize(app: Application) = coroutineScope {
    registry.groupBy { initializer -&gt;
        initializer.priority().ordinal
    }
        .toSortedMap()
        .forEach { entry -&gt;
            val tasks = entry.value.map { initializer -&gt;
                async {
                    initializer.initialize(app)
                }
            }
            tasks.awaitAll()
        }
}```
The code above runs, but if I change
```                async {```
to
```                async(Dispatchers.Default) {```
Makes the app blocks forever. Would anyone have an idea of how to fix it ?

<@U2E974ELT> is this an unsolved problem with coroutines ? Is this related to this <https://github.com/Kotlin/kotlinx.coroutines/issues/2448|issue> ? Like, I do need a way of make the UI thread wait the execution of those tasks (today I am running everything in the Main Thread). Is there any other mechanism that I could use apart from `runBlocking`?