J.P. Morgan Application Developer interview questions

I had interview at malad , Mumbai branch. i reached before 10 minute by schedule time. Before these technical round and PM round, I also had a telephonic round. it was 45 minute long. after reaching there my contact person received me and ask to sit in interview cabin. After that i completed 1 technical round and 1 PM round in which they seemed more focus on multi threading and transaction in java. i got feedback after 15 minute and so i proceed for HR round where she asked me some basic questions regarding my current job and my location. Overall it was good experiance to visit JPMorgan