Explore various approaches to managing concurrency in Java through this conference talk from Spring I/O 2016. Dive into the challenges of writing correct concurrent code and learn about different methods to handle concurrency, from basic threads to higher-level primitives like fibers and work-stealing solutions. Examine a simple concurrent problem solved using threads, executors, actors, fibers, and monadic code with completable futures. Compare these approaches in terms of simplicity, readability, configuration, and management. Gain insights into when to use each method in your projects, understanding their benefits and trade-offs. Cover topics such as revolutionary developer tools, concurrency parallelism theory and practice, thread pools, the Fork Join Framework, Completable Futures, Actor Systems, Quasar Fibers, and Transactional Memory. Enhance your understanding of concurrent programming in Java and make informed decisions on the best approach for your specific scenarios.