Add version-specific functionality for connections.

AzureAD/azure-activedirectory-library-for-android#1547

Author: AdamBJohnsonx

common/src/main/java/com/microsoft/identity/common/adal/internal/net/DefaultConnectionService.java

@@ -25,6 +25,8 @@
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.net.ConnectivityManager;
+import android.net.Network;
+import android.net.NetworkCapabilities;
 import android.net.NetworkInfo;
 import android.os.Build;
 
@@ -62,9 +64,15 @@ public DefaultConnectionService(Context ctx) {
     public boolean isConnectionAvailable() {
         ConnectivityManager connectivityManager = (ConnectivityManager) mConnectionContext
                 .getSystemService(Context.CONNECTIVITY_SERVICE);
-        NetworkInfo activeNetwork = connectivityManager.getActiveNetworkInfo();
-        @SuppressWarnings("deprecation")
-        final boolean isConnectionAvailable = activeNetwork != null && activeNetwork.isConnectedOrConnecting();
+        final boolean isConnectionAvailable;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            final Network activeNetwork = connectivityManager.getActiveNetwork();
+            final NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(activeNetwork);
+            isConnectionAvailable = capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED);
+        } else {
+            final NetworkInfo activeNetwork = connectivityManager.getActiveNetworkInfo();
+            isConnectionAvailable = activeNetwork != null && activeNetwork.isConnected();
+        }
         Telemetry.emit((BaseEvent) new BaseEvent().put(TelemetryEventStrings.Key.NETWORK_CONNECTION, String.valueOf(isConnectionAvailable)));
         return isConnectionAvailable;
     }