You now know how to create a JAR file from a NetBeans project. For the plugins that you will create in the future, you can follow this simple process in order to install and run your new plugin, whether it is for testing or for a finished product. You also know how to update a plugin that is already installed on your server and fix the bugs that are exposed in your code. In the following chapters, we will create increasingly complex plugins. The first step to this is creating commands for plugins that players will be able to execute in game.