Deutsche Bank AVP Java Developer interview questions

Interview process had started with one online test and end with the Fitment round (Manager round). They are very unprofessional. at the beginning they were telling me, this is full stack developer job and they need microservices, spring boot and Angular developer but in fitment interview they told me that they are having application which is using Swing spring and all the old technologies. I asked the manager if this was the scenario then how did i cleared all the rounds when i do not have swing experience :)