Can the saml-extension-federation be used as a service provider / relying party with non-spring java web apps deployed to tomcat?

[coffeebeantraining]

I am trying to determine if I can use the saml-extension-federation as a service provider with existing non-Spring Java web apps where I do not have access to the Java web apps source code. I have java war files that are deployed to a Tomcat container and I was hoping I could just plug the saml-extension-federation into the deployed web app somehow and configure the extension to communicate with Microsoft Entra ID enterprise apps as the IDP. Does anyone know if that is even possible or do i need to look elsewhere for a service provider extension or plugin.
Thanks for any help.