[@nativescript/firebase-messaging-core][android] Error when trying to register device

[PeterStaev]

With the latest changes (3.2.3), I'm getting an error when trying to register device and get token on Android. The same code has been working fine with version 3.2.0. The error is:

Error: java.lang.NullPointerException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkNotNullParameter, parameter messaging

From what I was able to troubleshoot it is because of this code that delays loading until first usage:

firebase/packages/firebase-messaging-core/index.android.ts

Lines 207 to 213 in 0636cd4

	get native() {
	if (!this._native) {
	this._native = com.google.firebase.messaging.FirebaseMessaging.getInstance();
	}
	return this._native;
	}

Which was changed in the bump deps commit:
0636cd4#diff-f74cba432ab62cdf5bdf373d3c4c8f3d63dcb1fd4cdcddd473144d2b3c981f80

Seems that this delay load does not work as expected and on all places in the plugin either this._native should be replaced with this.native so that it inits correctly, for example here:

firebase/packages/firebase-messaging-core/index.android.ts

Lines 218 to 225 in 0636cd4

	getCurrentToken(): Promise<string> {
	return new Promise((resolve, reject) => {
	org.nativescript.firebase.messaging.FirebaseMessaging.getToken(
	this._native,
	new org.nativescript.firebase.messaging.FirebaseMessaging.Callback<string>({
	onSuccess(result) {
	resolve(result);
	},

Or the previous init in the constructor should be returned. No idea why it was delay loaded in the first place...

[triniwiz]

In the newer google services there was an issue when calling the getInstance early would crash so the delay was added, yes you're correct those ._native should be the using the.native