Springer Nature Java Developer interview questions

I have gone through CDAC. They have three rounds one day before aptitude + technicle aptitude and on next day technicle interview followed by HR round.I n technicle they focus on oops concept,final keyword,jsp etc.

I have no issue with hiring process. The problem with coding interview test. Time limit of the coding interview is 1 hour. In 1 hour they have very big expectation. Code should have with junit and every scenario in the question.i have covered the 70% of the coding in time limit but they are not satisfied. They stop me after 1 hour and ask me the question . Really bad experience with the interviewer and company.really disappointed with the interview round.