This app is composed of a single JAR file and can be installed directly from the Universal Plugin Manager (UPM).
If you manually downloaded the JAR file, follow these steps to install it:
Log on to Jira as an administrator
Go to Administration > Apps
Click Manage apps
Click Upload app
Select the JAR file
Click Upload to start the installation. When the installation is done, a confirmation message is displayed.
The app is not fully functional at this time. You must obtain and then activate a trial or commercial license in order to use it. See Activating the app license.