If you run into issues while using this tool in Bamboo, please apply the workaround described in this link.

The Plugin's configuration settings are not removed if the plugin is uninstalled. To remove the configuration settings, follow this procedure:

Step 1:

Disable or uninstall the SAML Single Sign on using the Plugin Manager

Step 2: 

Download clearssoconfig-1.2.1.jar and upload it using the Plugin Manager:

Step 3:

Open the URL https://<jira_or_confluence>/plugins/servlet/clearssoconfig

Step 4:

Uninstall the Clear SAML SSO Config plugin