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Feb 10, 2024 · Virtual Threads. Introduction to Virtual Threads in Java 21. Concurrency has always been a cornerstone of Java programming, empowering developers to build responsive and scalable applications.
Oct 5, 2023 · Even though Scoped Values (JEP 446) and Structured Concurrency (JEP 453) are still preview features in Java 21, Virtual Threads arrived a full-fledged feature are production-ready. They are a versatile and powerful new approach to Java’s concurrency and will have a significant impact on our programs going forward.
Sep 21, 2023 · The JEPs in Java 21 deliver several important production-ready advances to the platform. Java 21 is officially here, as of its general availability launch on September 19, 2023. This release represents the 12th feature release of the platform using the now-standard semiannual cadence. (You should expect to see Java 22 in March 2024.)
Jul 29, 2024 · Virtual threads are expected to improve performance by reducing overhead related to thread creation and context switching. Despite some sharp edges as of Java 21, virtual threads largely deliver on their promise. In our quest for more performant Java applications, we see further virtual thread adoption as a key towards unlocking that goal.
Dec 5, 2023 · The Java 21 code tries to create a million virtual threads using the static Thread.virtualThread () method. The following code shows an excerpt of Java 11 code that creates one million threads of a task that is represented by a class named BlockedThread, which encapsulates blocking code.
- Bob Reselman
- 3 min
Because virtual threads are an implementation of java.lang.Thread and conform to the same rules that specified java.lang.Thread since Java SE 1.0, developers don't need to learn new concepts to use them. However, the inability to spawn very many platform threads—the only implementation of threads available in Java for many years—has bred practices designed to cope with their high cost.
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Jan 21, 2024 · 2. Virtual Threads (Project Loom) The virtual threads are JVM-managed lightweight threads that will help in writing high-throughput concurrent applications (throughput means how many units of information a system can process in a given amount of time). [JEP-425, JEP-436 and JEP-444] In Java 21, virtual threads are ready for production use.