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Project Leyden Ships Third Option for Faster Application Start with JEP 483 in Java 24
- In Java 24, JEP 483 from Project Leyden promises up to 40% faster application start without code changes.
- It introduces Ahead-of-Time Class Loading & Linking to create an AOT cache for faster startups.
- The AOT cache is built after a training run and benefits applications with significant class loading.
- JEP 483 aims to enhance Java's Class-Data Sharing and improve JVM startup time and performance.
- GraalVM Native Image offers faster startup, lower RAM usage, and better security but with constraints.
- Project CRaC takes a memory snapshot for restore, with security risks and limited support.
- Project Leyden's goal is to optimize Java startup time, but initially focused on JIT compiler over static images.
- Frameworks like Quarkus and Spring are evaluating support for JEP 483 for faster startup times.
- Helidon SE and MP showed speed-ups with JEP 483, GraalVM, and CRaC implementations.
- Quarkus fully supports JEP 483 and plans to address challenges like memory consumption and custom class loaders.
- Spring is enthusiastic about the benefits of Project Leyden and expects further improvements in future Java versions.
- JEP 483 is a significant development in optimizing Java applications and frameworks like Quarkus and Spring are actively exploring its benefits.
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