Spring Core – Page 4 – Sharp: NCLEX, Java & Python

Java: Transactions and Proxies

What is transaction self-invocation in Spring, and why is it risky?

Understanding @Transactional in Spring?

Why is early input rejection important in Spring applications?

How would you explain a common mistake with bean scopes in Spring in an interview?

How can bean validation improve application security?

What are the consequences of improper bean scope selection?

Why does using @NotBlank on a field matter in practice?

How does Java Bean Validation work in a Spring controller?

Why does @Valid in Spring Boot controllers matter in this design?

How does the @NotBlank annotation help in data validation?