Java

Tell us about your experience and current project.

What are the bean scopes in Spring? How does Singleton differ from Prototype?

How can microservices communicate with each other? REST vs Kafka — criteria for choosing.

Entity state in Hibernate (Entity lifecycle).

Experience with gRPC and REST?

Did you write a Spring Boot starter? Why? What features did you encounter?

Have you had experience with BPMN and Camunda?

Kafka: a topic with 3 partitions and 4 consumers in one group — what will happen?

What integrations have you worked with? API integrations with what?

Experience with Spring Security. JWT token: will the server intercept a request with a foreign token? What if a hacker changes the token's payload?

How many times will a stream pass through the original collection with two maps and one collect?

Experience with Workflow systems?

Have you had experience with RAG and vector search?

What are Bean and BeanDefinition in Spring?

Особенности вызова методов, помеченных @Transactional. Проблема self-вызова.

Has there been experience in decomposing a monolith into microservices?

What modules of Spring have you worked with?

What is a race condition?

Is a primitive object field stored in the heap or in the stack?

How to accept a POST request with JSON on the Spring side? When does JSON convert to DTO?