Converting Future to CompletableFuture With Java Virtual Threads - Gunnar Morling

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Converting Future to CompletableFuture With Java Virtual Threads - Gunnar Morling

This post explores how virtual threads in Java 21+ provide an elegant solution for converting legacy Future objects into CompletableFuture instances.

Since Java 8, the CompletableFuture API provides a convenient way for performing asynchronous operations in a functional, composable way.
This makes it very simple to call some long-running methods—​for instance involving external I/O—​asynchronously and process each result as soon as it is available, without blocking on any threads:

https://www.morling.dev/blog/future-to-completablefuture-with-java-virtual-threads/