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@AdamBien
Last active May 29, 2025 14:53
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135thAirhacksQ&A.md
@lprimak
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lprimak commented May 29, 2025

Hi, Adam,

I have some feedback / followup commends and questions to your last AirHacks Episode.
Great job By-the-way!

Do you have an updated benchmark for RequestScoped vs. EJB? I know Quarkus doesn't have EJBs, but I want to know if I need to wait for "EJB Replacement" for performance in JVM Quarkus, or is RequestScoped currently good enough without optimizations such as pooling and max concurrency that are still only available in EJB currently?
I did see you mention my question in the latest air hacks but really didn’t answer it. Do you want to elaborate a bit? Thank you!

@lprimak
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lprimak commented May 29, 2025

Hi, Adam,

I have lots of Jakarta EE code that really can’t be migrated to Quarkus and really doesn’t need fast startup etc.

Would like to update you that I’m working on Payara so startup I almost as good as Quarkus.
Deployment is certainly just as fast as Quarkus, Project Leyden is a game changer here, and with JDK 24,
startup performance is almost as good as Quarkus is now.

Advantage of Quarkus is not as spectacular now as it was because Java is getting better in general and optimization are getting spread through all Java products.
Reflection is no longer a "no-go" for performance with Project Leyden.
Franz’ optimization work is paying off for all Java apps
Markus Karg JVM and Jersey optimization is out with Java 24 and at least doubled API performance for all frameworks.
I also worked with Payara to optimize their stuff to match Quarkus app deploy performance. Especially with Leyden.

@lprimak
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lprimak commented May 29, 2025

Hi, Adam,

Did you hear about Project jtaccuino which is Jupyter notebook in Java and it’s awesome. Written in JavaFX.
Another way Python is no longer the "only way" to do data science.

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