David Matějček

Do you use open source? Do you support it? github.com/sponsors/dmatej liberapay.com/dmatej/donate

We’ve transformed Embedded GlassFish from a developer-focused tool into a production-ready, lightweight runtime. It’s now a viable option for running microservices from the command line or in cloud containers.

First milestone build of GlassFish 9 with updated Jakarta EE 12 dependencies available! github.com/eclipse-ee4j/g… Early alpha, with some full featured implementations (like Mojarra 5), for others just adding new interfaces. #Java #JakartaEE #JakartaEE12 #GlassFish #GlassFish9

Eclipse GlassFish vs. Oracle GlassFish: Key Differences To help you understand the evolution of GlassFish, let’s compare the modern Eclipse GlassFish with the older Oracle #GlassFish across several key areas. omnifish.ee/eclipse-glassf…

Mojarra 5.0 milestone 1 released! Tons of minor cleanups, fixes and polishing included. The "snow leopard" release of Jakarta Faces. github.com/eclipse-ee4j/m… #Java #JakartaEE #JakartaEE12 #JakartaFaces #JakartaFaces5 #Mojarra #Mojarra5

We’re proud to say that Eclipse #GlassFish is at the forefront of #Java standards. Under OmniFish’s lead, it was the first to pass the #JakartaEE 11 Web Profile and Jakarta EE 11 Platform TCKs, demonstrating the commitment to the latest specifications.

This article explores the key differences between the modern Eclipse GlassFish and its predecessor, Oracle GlassFish and older Eclipse GlassFish versions. This is no longer your father’s GlassFish. omnifish.ee/eclipse-glassf…

OmniPersistence and OptimusFaces finally reach 1.0 🕺💃 balusc.omnifaces.org/2026/03/omnipe… #Java #JakartaEE #JakartaPersistence #JakartaFaces

Services Reloaded Increased Throughput with Project Loom Virtual Threads with @kito99 youtube.com/watch?v=3CZqra…

GlassFish 8 embraces the future of concurrency in Java with support for virtual threads in its HTTP thread pools and Managed Executors. This allows a massive number of concurrent requests with minimal overhead, leading to significant improvements in scalability and performance.

We’re excited to announce our partnership with Eclipse Tradista, an open-source trading and position management platform built on #JakartaEE. @Tradista is a sophisticated financial platform handling complex trading workflows, positions and risk management,

Thanks all for the great community effort to help me become so much stronger, leaner, and secure. Without all the amazing contributions I wouldn't be able to do it. Thanks to @dmatej, @hantsy, @anbusampath, escay, @OndroMih, @arjan_tijms, aubi, @pzygielo

@67brics @JohnCleese So well trained they spent whole winter fighting for few meters and throwing whatever they found at home to homes of civilians. So rested that they trick Africans to the army. Are you russian troll? Well, why I am even asking ... :-D

John with the greatest of respect you are getting misled. Russia has been building one of the biggest wartime forces in modern history with supply lines that stretch from the front lines by rail deep into mother Russia. They are battle hardened, well rested, well trained, well equipped with all the latest gear, fit, with air support and behind the lines intel and worst of all, very very angry. It’s going to be ugly for the poor sods freezing their asses off right now. The US military is right, the war is lost.

I see nothing that suggests Ukraine wants a peace agreement with Russia Surely it looks that if Ukraine can hold out for a few more freezing weeks, they can make steady gains until the Russian economy collapses Am I missing something ?

@JohnCleese Seems russian troll army loves you, looking at reactions. Russia lost three days later after it started the last invasion. We started sobering, reviewing our beliefs of last 10 or 30 years about Russia. "Obmanuli nas".

Check out the blog "GlassFish and Jakarta EE, rethink the cloud with Nanos Unikernel" by Angelo Rubini to learn why and how to use Nanos Unikernel, and how GlassFish can be easily packaged and run as a Nanos Unikernel image, a lighter, faster, more secure, and more efficient alternative to Docker containers. Read the blog 👉 hubs.la/Q042v04-0 #Glassfish #JakartaEE #Java

@Kasparov63 Bureaucratic hell of the democracy. Nobody understands it, so even kremlin zombies don't. They cannot catch and hold, EU is self repairing the damage they cause, for example kremlin now holds Czech gov, but we still do help Ukraine.

What's the point of the EU when Putin can buy off a member or two--Greece, Belgium, Hungary--for different purposes to prevent any unified action against Russian aggression and corruption? Divide and conquer.

@MaryanaNaumove Shame on you, murderers and occupants!

Here's a Russian Hero at the Olympics ! I would do the same) Men and Women of Russia are giving their lives and bodies at present fighting the Nazis of NATO, and we know that ITALY is funding the same Banderites to kill Russians ! Love to her ! Glory to Russia

@JakartaEE We’re glad that we can serve both the community and our customers with high-quality production-ready GlassFish releases. Special thanks to @dmatej , GlassFish project lead and @OmniFishEE co-founder, who made sure that everything is correctly in place for GlassFish 8.

GlassFish 8.0.0 released last week! 🚀 What's new? Jakarta Data repositories ✅ Jakarta EE 11 compatible ✅ Java 21+ support ✅ Virtual threads ✅ Enterprise-grade Java, redefined. Production-ready, modern, backed by OmniFish commercial support. omnifish.ee/glassfish-8-re…

For those seeking a stable, open, and innovative alternative to Payara, with clear independence, transparency and reasonably priced support, we believe Eclipse GlassFish is an excellent choice. Learn more about how GlassFish compares to Payara: omnifish.ee/level-up-from-…

If you are a Payara customer or Community user, we invite you to explore what #GlassFish and OmniFish have to offer. We provide support directly for Payara Community, or in a transition phase to allow to gradually migrate from Payara Enterprise to Community and then to GlassFish.