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Conquering Concurrency: Java’s Virtual Threads Take the Center Stage

Naveen Metta
6 min readDec 31, 2023

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credit goes to the owner : https://belief-driven-design.com/looking-at-java-21-virtual-threads-bd181/
source : belief-driven-design.com

For decades, traditional platform threads held the reins of concurrency in Java, like seasoned actors commanding the spotlight. But a revolution is brewing in the JVM, ushering in a new era of agility and efficiency: virtual threads. These lightweight understudies promise to redefine how we approach parallel programming, offering unparalleled scalability, resourcefulness, and a paradigm shift in our understanding of concurrency. Buckle up, as we unveil the captivating world of virtual threads, dissecting their every nuance, delving into their real-world applications, and weighing their trade-offs against the established guard.

Unmasking the Mystery: What are Virtual Threads?

Imagine the stage of concurrency, bustling with actors (threads) vying for their moment in the spotlight (CPU core). Each actor, draped in the heavy garb of platform threads, demands significant resources and limited slots. Creating these actors is akin to elaborate costume changes, a costly endeavor that restricts the play’s scale.

Enter virtual threads, the agile understudies of the concurrent scene. These lightweight objects reside in the Java heap, unburdened by the cumbersome attire of platform threads. They patiently wait in the wings, their scripts (continuations) brimming with instructions, ready to…

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Naveen Metta
Naveen Metta

Written by Naveen Metta

I'm a Full Stack Developer with 3+ years of experience. feel free to reach out for any help : mettanaveen701@gmail.com

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