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Posts by Daniel Kec

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Last week, I attended an excellent JUG meetup! The attendance at Poznan JUG was great, and the discussions were engaging. The theater venue was simply superb. I'm glad I had the opportunity to share some thoughts on #VirtualThreads and the @helidon-io.bsky.social .

6 months ago 5 0 0 0
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A nice run around the islands of #JavaCro with @kec.bsky.social

#runWithJakartaEE #EclipseFoundation #Community #JakartaEE

6 months ago 4 1 0 0
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Right time, right place to be for #jugtoberfest!
#poznanjug

6 months ago 3 0 0 0
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LangChain4j streaming chat over Java Stream LangChain4j streaming chat over Java Stream

New blog post:
"LangChain4j streaming chat over Java Stream"
by @kec.bsky.social :

medium.com/helidon/lang...

6 months ago 3 1 0 0
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We had a great time at ⚔️ Battle of frameworks #CZJUG meetup!

With great venue and catering sponsored by @tricentis.bsky.social we have started the competition by laying out the strengths of respective frameworks @quarkus.io , @helidon-io.bsky.social , and @payara.bsky.social.

6 months ago 1 1 1 0
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⚔️ Battle of frameworks, Wed, Oct 1, 2025, 5:30 PM | Meetup CZJUG Prague on tour are usual CZJUG Prague meetups taking place at a location hosted by one of our partner companies. This time, our CZJUG on tour meetup will be hosted b

Get ready for another #CZJUG ☕ meetup. And this one is going to be a banger 🥊. Three frameworks ⚙️, three champions 👑, one result 🏆. Fighting arena and medical services 🚑 will be provided by Tricentis.

www.meetup.com/czjug-prague...

6 months ago 2 2 0 0
JEPs in JDK 25 integrated since JDK 21

Java 25 / JDK 25: Features since the previous long-term support (LTS) release: openjdk.org/projects/jdk...

#Java25 #JDK25 #OpenJDK #Java

6 months ago 39 16 1 1
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Announcement: Adding OCI Generative AI Support to LangChain4j and Helidon Announcement: Adding OCI Generative AI Support to LangChain4j and Helidon

Oracle #GenAI models are now available in #LangChain4j. It's a small contribution from Helidon team to enable powerful #Oracle #AI platform in Java landscape and in #Helidon too 😎

medium.com/helidon/anno...

9 months ago 1 1 0 0
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CZJUG on tour: GraalPy: Java ❤️ Python, Tue, Jun 10, 2025, 6:00 PM | Meetup CZJUG Prague on tour are usual CZJUG Prague meetups taking place at a location hosted by one of our partner companies. This time, our CZJUG on tour meetup will be hosted b

Today is the day! Last @czjug.bsky.social meetup before the summer. GraalPy: Java❤️Python @stevesindelarcz from @graalvm.org team will bridge modern #Python and the #JVM ecosystem!

There will be🍕sponsored by #sky and contest for free @jetbrains.com licences!

www.meetup.com/czjug-prague...

10 months ago 3 1 0 0
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OTD…May 23, 1995

Happy Birthday, #Java! Here’s to 30+ more years with a beautiful combination of technology innovation and community participation!

10 months ago 73 38 2 5
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CZJUG on tour: GraalPy: Java ❤️ Python, Tue, Jun 10, 2025, 6:00 PM | Meetup CZJUG Prague on tour are usual CZJUG Prague meetups taking place at a location hosted by one of our partner companies. This time, our CZJUG on tour meetup will be hosted b

🚀 @czjug.bsky.social events continue. Join us at #Oracle Prague offices to learn 💡 from Štěpán Šindelář about bridging modern Python 🐍 and the JVM ☕ ecosystem with #GraalPy and @graalvm.org

🍕 at the venue and discussion over 🍻 afterwards .

#JUG #GraalPy #Java #Python #JVM #Prague

10 months ago 9 4 0 2
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After some minor technical difficulties we are back for the second talk of @czjug.bsky.social and #KBTechMeet with Haoyi Li talking about (possibly) better future for java build tools.

11 months ago 3 2 0 0
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"Funtional style is fun to write, but not fun to read" Jarda Tulach on funtional programming at #geecon

11 months ago 0 0 0 0
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Another @czjug.bsky.social in progress together with #KBTechMeet. Starting with Jirka Pinkas and his talk about DDD.

11 months ago 3 2 0 0
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Just learned at #geecon that @adambien.blog never worked!

11 months ago 5 3 0 0
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Great episode! But hey, we are quite the opposite of "boring" here!

11 months ago 1 1 1 0
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We just integrated a performance improvement to Java String that will provide a ~10x performance boost in some applications where Strings are used as keys and where the associated values are constant foldable. This will make JDK 25 faster.

github.com/openjdk/jdk/...

11 months ago 77 21 2 1
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Helidon Revealed: A Practical Guide to Oracle’s Microservices Framework Helidon Revealed: A Practical Guide to Oracle’s Microservices Framework [Redlich, Michael P.] on Amazon.com. *FREE* shipping on qualifying offers. Helidon Revealed: A Practical Guide to Oracle’s Microservices Framework

Helidon Revealed a.co/d/9Nv4eNN

11 months ago 0 0 0 0
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Martin Ladecký walking us through the development of #Loono ‘s Preventivka app 📱 at yet another @czjug.bsky.social meetup ☕️. This time hosted by Commerzbank Czech Republic .

Thank you 🙏🎉

11 months ago 2 2 0 0
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Want to hear about the first Jakarta EE Core Profile implementation powered by a pure Virtual Thread based web server? Join me at JDConf 2025 for my session about #Helidon. RSVP Now: jdconf.com #Java #JDConf #AI #Cloud

1 year ago 7 5 0 0
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CZJUG on tour: Building Loono, Tue, Apr 22, 2025, 6:00 PM | Meetup CZJUG Prague on tour are usual CZJUG Prague meetups taking place at a location hosted by one of our partner companies. This time, our CZJUG on tour meetup will be hosted b

Do you want to know how Loono App was made? Let's meet at a Deep Dive into the Tech Stack and Design Choices of a Mobile Health App.

Event is free, registration is needed.
www.meetup.com/czjug-prague...

On Tuesday 22.4. at Commerzbank AG in their offices at Karlovo nám. 2097/10, 120 00 Nové Město

1 year ago 2 1 0 1
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Helidon and AOT startup optimization benchmark Leyden vs. Native Image vs. CRaC, which makes Helidon start faster?

Leyden vs. Native Image vs. CRaC — What makes Helidon start faster?

In a new article, @kec.bsky.social explores and benchmarks the three leading approaches to Java startup optimization, comparing real-world performance and trade-offs.

medium.com/helidon/heli...

1 year ago 3 2 0 0
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Join Arjav Desai and Adao Oliveira Junior for their session at Arc of AI Conference, to dive into Java based RAG with LLMs and shape the future of Java and AI! 💫

www.arcofai.com/speaker/c3a4...

Secure your tickets now!
Use JOIN-ARJAV-50OFF for discount
📅Mar 31-Apr 3
🎟️ arcofai.com

1 year ago 1 2 0 0
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Java Time Capsule was such a cool idea! Last time seen in the hands of @smarks.bsky.social, asking if anyone has a shovel #javaturns30

1 year ago 9 2 1 1
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We had a blast with @helidon-io.bsky.social at #JavaOne. Met great people and got surprised by some very cool Helidon deployments out there! #javaturns30

1 year ago 3 0 0 0
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A great proposal from Red Hat and IBM to unify Jakarta EE and MicroProfile. The technologies would be stronger together and this is a good thing for everyone! groups.google.com/g/microprofi...

1 year ago 4 3 0 1
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Properly dressed in @jakarta.ee gear for the JavaOne morning run. With @kec.bsky.social

#JakartaEE #EclipseFoundation #Community #JavaOne

1 year ago 1 1 0 0
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Helidon Inject Injection is one of the fundamental building blocks of modern applications and to support that fully, we introduced the Helidon Inject.

🚀 Meet Helidon Injection! 🚀

A lightweight, compile-time dependency injection framework designed for fast startup and minimal overhead.

- No reflection, no runtime scanning
- Instant startup, low memory usage
- Simple annotation-based DI

Read more: medium.com/helidon/heli...

1 year ago 4 2 0 0

Answer to the Ultimate Question of Life, the Universe, and Everything!

1 year ago 2 0 0 0

#Helidon 4.2.0 is out! Packed with new features like #langchain4j integration, Build time #DI, and #CRaC support snapshotting and super fast startup!

1 year ago 0 2 0 1