
Co-Founder & CEO of https://nitter.cf/t.co/G5QlE9G6qF, co-founder of @MicroStreamOne, Entrepreneur, Editor in Chief for JAVAPRO Magazine, Founder & Co-Organizer of @jcon_conference
Regensburg, Bayern
Joined September 2016
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Markus Kett retweeted
Markus Kett retweeted
Six techniques can make DQN more capable – but what does each one actually fix?
Guilherme Alves Silveira breaks down PER, Double & Dueling DQN, N-step returns, NoisyNets & C51 in Java.
Read: javapro.io/2026/09/08/buildi…
#Java #AI #ReinforcementLearning
Markus Kett retweeted
#Kotlin or #Java in 2026? @ArghRich has a winner – but which one? In the final part of his series, he compares both languages for domain modelling.
Discover their strengths, trade-offs and his final verdict: javapro.io/2026/10/28/kotlin…
#JVM #DDD #DomainDrivenCode #JUnit #NullSafety
Markus Kett retweeted
Milliseconds lose when your competition runs in microseconds. @cefothe shares practical #Java techniques—from JIT optimization & off-heap memory to sharding & object pooling—to build ultra-fast systems.
Push Java to its limits: javapro.io/2026/09/02/achiev…
#Performance #LowLatency
Markus Kett retweeted
#AI in Java? #CloudNative design? #JVM performance? #JCON2027 wants your session! #CFP closes Oct 30 at 23:59 UTC+1
Talks, lightning sessions, or workshops — the stage is yours in Cologne’s legendary cinema.
More information: javapro.io/2026/10/27/jcon-e…
#CallForPapers #JAVAPRO
🤖 Made with AI
Markus Kett retweeted
Alle Tests grün. Import erfolgreich. Trotzdem fehlten Daten! @SvenRuppert berichtet, wie beim #KI-gestützten Wechsel von ClickUp zu @vaadin ein Fehler unbemerkt blieb & warum menschliche Kontrolle unverzichtbar ist.
Zum Bericht: javapro.io/de/von-clickup-zu…
#Java #Testing #Vaadin
Markus Kett retweeted
3:14 a.m. Your #SpringBoot batch fails. Again. Is it a database deadlock, a lock timeout, or a transaction design flaw? Yasin Baytürk shares a production-focused guide.
Learn what to check in the first 15 minutes: javapro.io/2026/10/27/the-3-…
#Java #JPA #Hibernate #Deadlock
Markus Kett retweeted
The #JCON2026 video “Creating AI-infused Apps, the Easy Way” explores #AI integration with #Java —@kevindubois & Laura Cowen’s #JAVAPRO article takes a closer look at #AgenticAI patterns with #LangChain4j & #Quarkus
Watch & read: javapro.io/2026/03/31/agenti…
@QuarkusIO @langchain4j
Our next #JCON2026 session is live: 'Local #Development in the #AI Era' with @kevindubois
Most of us like to do #local development. It means we’re in #control of any #dependencies #network issues/latency, configurations and cost. And we love …
Grab your coffee and hit play: youtu.be/nVJi7tIHNTQ
Markus Kett retweeted
#HTTPS funktioniert. Trotzdem fehlt dem Session-Cookie das Secure-Flag. Warum? #Jetty erkennt ohne Forwarded-Auswertung nicht, dass #Caddy TLS terminiert.
Erfahre von @SvenRuppert, wie du den Fehler behebst: javapro.io/de/vaadin-deploym…
#Java #Security #Vaadin #Hetzner @vaadin
Markus Kett retweeted
HTTP/3. Faster warmups. Less GC contention. @sibaspadhi connects #Java26 improvements to FinTech challenges: tail latency, cold starts & throughput.
Find out which optimizations to test first: javapro.io/2026/10/22/java-2…
#JVM #FinTech #CloudNative #AgenticAI #FinTech #JAVAPRO
Markus Kett retweeted
HTTP/2 solved a lot—but not everything. #Java26 finally brings #HTTP3 & QUIC to HttpClient, removing transport-layer Head-of-Line blocking while keeping the existing API intact. Wanderson Xesquevixos explains why it matters.
See more: javapro.io/2026/08/27/java-2…
#OpenJDK @OpenJDK
Markus Kett retweeted
30% OFF or FREE? Your #JCON2027 ticket is waiting & the shop is open! Grab your Blind Ticket with 30% off or find out how to attend for FREE as part of the #Java community.
Get your ticket:
🇬🇧 javapro.io/2026/10/21/jcon-e…
🇩🇪 javapro.io/de/jcon-europe-20…
#JavaCommunity #JAVAPRO #JUG
Markus Kett retweeted
20 minutes to build a feature with #AI. A week to fix the damage. @sogldaniel explores why vibe coding can create technical debt & how Spec Driven Development changes the workflow. Read the analysis: javapro.io/2026/10/21/spec-d…
#VibeCoding #SoftwareDevelopment #SDD @github @RedHat
Markus Kett retweeted
Warum für immer mehr SaaS-Funktionen zahlen, die man gar nicht braucht? @SvenRuppert hinterfragt ClickUp & entwirft mit #KI eine eigene Anwendung auf Basis von @vaadin.
Wem gehören Daten, Code & Workflow? Lies jetzt: javapro.io/de/von-clickup-zu…
#Java #Vaadin #Datenhoheit #JAVAPRO
Markus Kett retweeted
#Java or #Kotlin: Which language helps you write safer code? @ArghRich compares null safety, thread safety, injection risks & type-safe builders.
Where does Kotlin have the edge? Read the comparison: javapro.io/2026/10/20/kotlin…
#JVM #Security #OWASP #JSpecity #ThreadSafety #JAVAPRO
Markus Kett retweeted
📢The #JCON2027 #CallForPapers is extended until Oct 30, 2026! Want to speak on Europe's biggest #Java stages?
Discover the benefits for speakers & submit your talk.
🇬🇧 EN: javapro.io/2026/10/19/jcon20…
🇩🇪 DE: javapro.io/de/jcon2027-cfp-v…
#JVM #AI #CFP #CoreJava #Frameworks #JAVAPRO #JUG
Markus Kett retweeted
Erst absichern, dann ins Internet! Bei @SvenRuppert läuft eine @vaadin-Anwendung als WAR auf #Jetty – verwaltet durch #SystemD & ausschließlich über 127.0.0.1 erreichbar.
So funktioniert das #Deployment ohne Docker javapro.io/de/vaadin-deploym…
#Java #Hetzner #Vaadin @Hetzner_Online
🤖 Made with AI
Markus Kett retweeted
Your encrypted data could be stolen today & decrypted years from now. Sebastian Hempel explains the “harvest now, decrypt later” threat & why #PostQuantumCryptography can't wait for them to arrive.
Find out how to prepare: javapro.io/2026/10/14/pqc-it…
#Java #Security @Cloudflare
Markus Kett retweeted
The #JCON2026 keynote with @MarkusKett & Johann Strauss pairs with Gerald Kammerer’s article on scaling #AI with #VectorSearch, #EclipseDataGrid & #Kubernetes.
Watch & read: javapro.io/2026/04/08/high-p…
Also in #JAVAPRO PDF: javapro.io/2026/04/27/04-202…
@EclipseStoreIO #GenAI #LLM #Java
Our next #JCON2026 keynote is live: 'Scaling Data in a Sovereign #AI Platform' by Johann Strauss & @markuskett
In this joint #keynote #Dell AI Factory and @Cyrock_AI show how to build a sovereign AI platform that turns AI strategy into…
Grab your coffee and hit play: youtu.be/MRSdUfnXgQE






















