java-best-practices

Expert guidance on modern Java patterns (JDK 8–24) and industry best practices. Use when writing, reviewing, or refactoring Java code to apply modern language features, APIs, and architectural patterns. Covers type inference (var), Records, sealed classes, pattern matching, switch expressions, text blocks, Streams, virtual threads, structured concurrency, modern collections APIs, I/O improvements, security enhancements, DTO design, exception-handling strategies (unchecked exceptions, validation-first approach, global handlers), naming conventions, code smells, and build verification. Essential for modernizing legacy Java code, Spring Boot applications, REST APIs, and enterprise Java development.