Spring Software Engineer interview questions

They emailed me a coding challenge to be completed in 2-3 days. Upon completion, I was scheduled an interview with an engineer - it was slightly behavorial but mostly technical that lasted about an hour. Afterwards, another technical interview was scheduled that lasted 2 1/2 hours with 3 engineers taking turns talking to me and asking me to code/answer technical questions. The recruiter was very helpful the entire time and everyone was a pleasure to talk to.