HBS Systems Java Software Engineer interview questions

I applied online. Got an email after around 2-3 weeks for an interview schedule. Went to the interview, I thought a lot of Java questions are gonna be asked. But I was just Asked "Tell me about yourself" and some stuff from the resume. Interviewer was nice and took me a conference room. But it was just him on the interview. The interview lasted around 12-15 minutes. Very easy and simple.