Adobe MTS 2 Software Engineer interview questions

I was referred by an employee. The hiring process comprised of 4 rounds of technical interviews, the final round(fourth) being the HM round. The first round was a DSA round. The second round had questions from Java, REST principles, LLD and current project architecture. The third round had a question from BST, REST principles and Java multi-threading. In the HM round, there were behavioral questions and followed by an array question(Given an array of integers, print all subsets of the array)