Make Sessions resilient to the FirebaseApp instance being deleted

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/internal/common/DataCollectionArbiter.java

@@ -75,11 +75,24 @@ public synchronized boolean isAutomaticDataCollectionEnabled() {
     final boolean dataCollectionEnabled =
         crashlyticsDataCollectionEnabled != null
             ? crashlyticsDataCollectionEnabled
-            : firebaseApp.isDataCollectionDefaultEnabled();
+            : isFirebaseDataCollectionDefaultEnabled();
     logDataCollectionState(dataCollectionEnabled);
     return dataCollectionEnabled;
   }
 
+  /**
+   * Determine whether automatic data collection is enabled or disabled by default in all SDKs.
+   *
+   * <p>If the FirebaseApp has been deleted, returns false.
+   */
+  private boolean isFirebaseDataCollectionDefaultEnabled() {
+    try {
+      return firebaseApp.isDataCollectionDefaultEnabled();
+    } catch (IllegalStateException ignored) {
+      return false;
+    }
+  }
+
   public synchronized void setCrashlyticsDataCollectionEnabled(@Nullable Boolean enabled) {
     if (enabled != null) {
       setInManifest = false;

firebase-perf/src/main/java/com/google/firebase/perf/FirebasePerformanceInitializer.java

@@ -15,17 +15,23 @@
 package com.google.firebase.perf;
 
 import com.google.firebase.perf.application.AppStateMonitor;
+import com.google.firebase.perf.logging.AndroidLogger;
 
 /**
  * FirebasePerformanceInitializer to initialize FirebasePerformance during app cold start
  *
  * @hide
  */
 public final class FirebasePerformanceInitializer implements AppStateMonitor.AppColdStartCallback {
+  private static final AndroidLogger logger = AndroidLogger.getInstance();
 
   @Override
   public void onAppColdStart() {
     // Initialize FirebasePerformance when app cold starts.
-    FirebasePerformance.getInstance();
+    try {
+      FirebasePerformance.getInstance();
+    } catch (IllegalStateException ex) {
+      logger.info("Failed to get instance of FirebasePerformance: %s", ex);
+    }
   }
 }

firebase-sessions/src/main/kotlin/com/google/firebase/sessions/FirebaseSessions.kt

@@ -138,9 +138,14 @@ internal constructor(
       return
     }
 
-    sessionCoordinator.attemptLoggingSessionEvent(
-      SessionEvents.startSession(firebaseApp, sessionDetails, sessionSettings, subscribers)
-    )
+    try {
+      val sessionEvent =
+        SessionEvents.startSession(firebaseApp, sessionDetails, sessionSettings, subscribers)
+      sessionCoordinator.attemptLoggingSessionEvent(sessionEvent)
+    } catch (ex: IllegalStateException) {
+      // This can happen if the app suddenly deletes the instance of FirebaseApp.
+      Log.i(TAG, "Sessions SDK failed to log Session Start event.", ex)
+    }
   }
 
   /** Calculate whether we should sample events using [sessionSettings] data. */