Explore a Spring I/O 2016 conference talk that delves into the fundamental shift from imperative to reactive programming. Learn about the essential concepts of reactive programming and discover tools available for Java developers. Through practical examples, understand how to compose asynchronous logic and develop non-blocking applications. Gain insights into topics such as concurrency, cloud deployment, asynchronous foundations, Java Asynchronous API, CompletableFuture, stream abstractions, reactive libraries, back pressure, and Reactive Web Engine. Examine the impact on programming models and explore techniques for handling asynchronous return values, void APIs, and ThreadLocal variables. Enhance your understanding of reactive programming principles and their application in modern software development.