[Question] Segfault on firebase::gma::Initialize

[DeexCoding]

[REQUIRED] Please fill in the following fields:

• Pre-built SDK from the website or open-source from this repo: Pre-built
• Firebase C++ SDK version: 10.6.0
• Main Firebase Components in concern: Google Mobile Ads (Auth, Database, etc.)
• Other Firebase Components in use: None (Auth, Database, etc.)
• Platform you are using the C++ SDK on: Windows (Mac, Windows, or Linux)
• Platform you are targeting: Android (iOS, Android, and/or desktop)

[REQUIRED] Please describe the question here:

I am trying to initialize GMA, but it just throws a segfault and nothing else (project name is AndroidStudioTest, weird that the segfault leaves "an" out):

A/libc: Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 23276 (Thread-6), pid 27809 (droidstudiotest)

And there is no other error

Here is the relevant code:

`int InitGMA(struct android_app* app)
{
JNIEnv* env = 0;
JavaVM* jniiptr = app->activity->vm;
jint attachResult = jniiptr->AttachCurrentThread(&env, 0);

firebase::InitResult result;
firebase::Future<firebase::gma::AdapterInitializationStatus> future = 
    firebase::gma::Initialize(env, app->activity->clazz, &result);`

[google-oss-bot]

I found a few problems with this issue:

• I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.
• This issue does not seem to follow the issue template. Make sure you provide all the required information.

[DeexCoding]

Call stack shows:
art_sigsegv_fault 0x00000076bc67e4b0
art::FaultManager::HandleFault(int, siginfo *, void *) 0x00000076bc67e9c4
art::SignalChain::Handler(int, siginfo *, void *) 0x000000567665aea4
0x0000007954307668
_JNIEnv::NewStringUTF(const char *) 0x00000076460493d8
firebase::util::FindOrLoadClassFromLoaders(_JNIEnv *, const char *) 0x00000076460493c4
firebase::util::FindClass(_JNIEnv *, const char *) 0x00000076460493c4
firebase::gma::Initialize(_JNIEnv *, _jobject *, firebase::InitResult *) 0x00000076460989dc
InitGMA(android_app *) AdsWrapper.cpp:50
...

[AlmostMatt]

Just to clarify, you are using GMA without a FirebaseApp, right?

Your sample code looks reasonable to me. I will try to reproduce and see what I can find.

[DeexCoding]

I am using it without a firebase app. I noticed if I integrate firebase (gradle plugins and everything) then it works flawlessly in the codebase, however, I would still like to use the least ammount of dependencies if possible.

[jbrettkooistra]

I am having the same issue using GMA without a FireBaseApp. The details and setup are the same as the original poster except I am using a Mac. Integrating Firebase also resolves the issue for me, but I would also like to avoid this dependency. I tried updating the Firebase C++ SDK version to 10.7.0 but the issue seems to exist in that version as well. Any updates?