These people are over smart people, 1st round happened with senior folk who instead of interviewing kept doing public speaking, he passed me through, I created an assignment in 3 days, worked so many hours created an web app with login good design and functionality and extensive test cases and docker image(problem was to have a user stack<Integer>). The following interview with hiring manager was the worst interview I ever faced, this shrewd person at the last asked to change stack to store all types generic type in same generic type, how lame is this person that he doesn't know that generics are a compile time phenomena(despite being told in the interview) and you can't do it, he started smirking I mean even if it was possible why did you not mention as a part of assignment and asked in a panic mode of last 5-10 minutes. The HR was suspicious of these guys so took out lots of details about these seniors, Manager wanted to get on a call, when I asked to reply on the mail, the HR called and this time started defending these lame people. Do not waste time with these people!!