The essentials of a Bukkit plugin
Each Bukkit plugin requires two specific files. These files are
plugin.yml and the main class of the plugin. We will begin by creating the most basic versions of each of these files. All of your future projects will start with the creation of these two files.
The plugin.yml file
We are ready to start programming a Bukkit plugin. The first file that we will create is
plugin.yml. This is the file that the Spigot server will read to determine how to load a plugin. Right-click on Source Packages and click on New | Other..., as shown in the following screenshot:
In the window that appears, select Other under Categories ...