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Explore the powerful new Stream Gatherers feature introduced in Java 22 through this comprehensive conference talk that addresses long-standing limitations in Java's Stream API. Learn how Stream Gatherers provide an extension point for creating custom intermediate operations beyond the traditional map, filter, and flatMap functions, while also understanding how they overcome the parallel streams' restriction to ForkJoin pools that previously made them unsuitable for IO-intensive scenarios. Discover practical use cases for implementing your own intermediate operations when the standard collectors aren't sufficient for your data gathering needs, and gain insights into performance optimization techniques using this new functional programming tool. Master the mechanics of how Stream Gatherers work within Java's functional programming paradigm, building upon the foundation of lambdas, records, and pattern matching to create more efficient data-driven processing flows without side effects.
