On iOS and Android 13+ permissions must be requested from the user before notifications can be posted. This is done automatically, when scheduling a notification. If you want do it manually, you can ...

If you are using JRuby then you need to download latest Oracle JDBC driver - either ojdbc7.jar or ojdbc6.jar for Java 7, ojdbc6.jar for Java 6 or ojdbc5.jar for Java 5. And copy this file to one of ...