This IDEA plugin makes it easy to develop Jenkins and its plugins on IntelliJ IDEA, for which JetBrains kindly provided us a free license.
This plugin has the following features:
In IDEA open the configuration for plugins, switch to "Available", choose "Stapler plugin for IntelliJ IDEA", right click and choose "Download and install". Afterwards restart IDEA.
Upon the successful extraction, you'll see a file like
Plugin page on JetBrains Plugins Repository
On MacOS (10.6), that plugins directory is, e.g.,
On Windows, the plugins directory is, e.g.,