Embedded / IoT

What is the 'synchronized' keyword?

What integrations with Kafka have you worked on? How did you interact with the broker?

What is idempotency?

How to make the library consumer obliged to handle a custom exception?

Tell more about the development of microservices for billing and tariffing at MegaFon — how it all happened, what exactly did you do?

What tasks would you solve using Generics in Java (excluding collections)?

How does Entity Graph differ from JOIN FETCH?

One of the three consumers has become unresponsive. What will happen to the partitions? What will happen if it becomes responsive again?

If a bean C calls a method of bean A with logging aspect, and inside A, private methods B, C, D are called — are the calls to B, C, D logged?