Custom Annotations - Interview Questions with coding explanations

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This video explains about how to create custom annotations in Spring framework along with the interview questions related to it.

1)How to create custom annotation in Spring framework?
2)What is @Target, @Retention and @Documented annotations in Spring framework? How is it related to creating a custom annotation?
3)What is the default retention policy?
4) What is Spring AOP?
5)How can we identify tin which method / rest call the performance issue is happening?
6)How can we identify the execution time of all the methods to identify the method that is consuming more time?
7)You have a specific String called “Request received” in your monitoring applications like Splunk. How will you add that specific String to all your methods? Adding it in each of the newly created methods is time consuming and error prone. How can this be achieved?
8)Creating custom annotation through code?
9)Using the custom annotation to calculate method execution to identify performance issues and logging specific String for monitoring applciations.