Merge pull request #57 from Leanplum/feature/fix-LP-5057

fix(Push): add null checker at LeanplumPushService.openNotification m…

Author: Enuviel

AndroidSDK/src/com/leanplum/LeanplumPushService.java

@@ -383,6 +383,9 @@ static void openNotification(Context context, final Bundle notification) {
 
     if (shouldStartActivity) {
       Intent actionIntent = getActionIntent(context);
+      if (actionIntent == null) {
+        return;
+      }
       actionIntent.putExtras(notification);
       actionIntent.addFlags(
           Intent.FLAG_ACTIVITY_CLEAR_TOP |