Bootiful Spring Boot by Josh Long

Java 21 is considered one of the most important Java releases ever, introducing key features like virtual threads, records, pattern matching, and sealed types

Virtual threads significantly improve application performance and scalability compared to platform threads, showing 2-3x better throughput in benchmarks

Spring AI enables building AI-powered applications easily, supporting features like RAG (Retrieval Augmented Generation) pipelines and vector stores for similarity search

Spring Modulith helps create modular, maintainable applications by enforcing clear boundaries between components and automatically generating architecture documentation

Records in Java 21 simplify data modeling and reduce boilerplate code compared to traditional POJOs

Event-driven patterns using Spring’s event bus help decouple components and ensure eventual consistency, especially useful for distributed systems

GraalVM native image compilation improves startup time and reduces memory usage, though compilation times are longer

Modern Java applications with Spring Boot can efficiently handle AI, observability, web stack, data access, and more while maintaining a small footprint

Java is technically superior to older versions (like Java 8) in terms of performance, security, and developer productivity

Using events and asynchronous processing helps improve application responsiveness and scalability when dealing with long-running operations