Oh god this is a flashback. One of my earlier jobs (circa 2010 or so) was working as a defence contractor doing operations for a system using an IBM/Weblogic/J2EE SOA stack. Part of this stack involved the XI50/XI52 and eventually an XG45. I inherited these devices from someone leaving the program and it became my niche.
Administering the thing was a giant PITA. Lots of GUIs, clicking, and (shocker) more XML.
I recall some sort of pipeline interface where you could manage all the various steps a requests could pass through with various components for doing SAML auth XSLTs and similar operations.
Since leaving that roll, I've seen absolutely nothing about these devices or anybody else who'd ever used them.