Firebase Admin SDK fials on AWS Elastic Beantalk - maven

Question

I recently deployed a Spring Boot app to Elastic Beanstalk.
Spring starts with no errors.
We are using Firebase for user authentication. On a local machiene or even on other external hosts the Firebase operations worked all fine, but not on EBS.
If i read the logs:
java.lang.IllegalStateException: FirebaseApp with name [DEFAULT] doesn't exist.
at com.google.firebase.FirebaseApp.getInstance(FirebaseApp.java:164) ~[firebase-admin-6.3.0.jar!/:na]
at com.google.firebase.FirebaseApp.getInstance(FirebaseApp.java:135) ~[firebase-admin-6.3.0.jar!/:na]
at com.google.firebase.auth.FirebaseAuth.getInstance(FirebaseAuth.java:100) ~[firebase-admin-6.3.0.jar!/:na]
at com.bodymate.springend.mvc.service.FirebaseService.validateToken(FirebaseService.java:15) ~[classes!/:1.0-SNAPSHOT]
at com.bodymate.springend.mvc.controller.UserController.register(UserController.java:66) ~[classes!/:1.0-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]...
This is my firebase config:
#Configuration
public class FirebaseConfig {
#PostConstruct
public void init() {
FirebaseOptions options;
try {
FileInputStream serviceAccount = new FileInputStream("src/main/resources/google-services.json");
options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(serviceAccount))
.build();
} catch (java.io.IOException e) {
e.printStackTrace();
return;
}
FirebaseApp.initializeApp(options);
}
}
The point where it gets out of hand:
#Service
public class FirebaseService {
public FirebaseToken validateToken(String token) throws InterruptedException, ExecutionException, InvalidFirebaseTokenException {
FirebaseToken decodedToken = FirebaseAuth.getInstance().verifyIdTokenAsync(token).get();
if( decodedToken != null && decodedToken.getUid() != null && !decodedToken.getUid().isEmpty()){
return decodedToken;
}else{
throw new InvalidFirebaseTokenException();
}
}
}
Does someone has any idea what is going wrong here ?
EDIT
I am using mvn clean install to build my .jar file for EBS.
Is it possible that this build does not contain the "google-services.json" ?