To install and configure the plugin, do as follows:
In Jira, click Manage Apps. The Manage Apps screen is displayed.
Click Upload App. The Upload App dialog box is displayed.
In From this URL, enter the following: https://downloads.whitesourcesoftware.com/jira-plugin/release/ws-jira-plugin.jar
Click Upload. You Log into Jira with Admin permissions.
Navigate to Manage Apps in the JIRA ADMINISTRATION section.
Search for WhiteSource in the Atlassian Marketplace search box.
Find the WhiteSource Integration for Jira and click Install.
After the installation, you will be directed to the configuration page. (If not, in the User-Installed Apps list, select the jira-server-plugin, and at the bottom of the screen, navigate to the WhiteSource Jira Plugin and click Configure).
The validate Validate your WhiteSource License screen is displayed. Enter the activation key (to generate an activation key, refer here) in the space provided box, and click Verify. In case you are using a proxy, enter its details in press the Proxy Config section Show Proxy Settings button to set it up.
NOTE: If the activation key cannot be verified, it might be expired or you might be experiencing connectivity issues. Contact Support.
If a verification indication is displayed, click Next. The plugin mapping screen is displayed. Continue to Mapping the WhiteSource Projects to the Jira Projects.