Markus Kett (@MarkusKett) header
Markus Kett (@MarkusKett) profile picture

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
Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)Photo by Markus Kett (@MarkusKett)
Markus Kett retweeted
The wait is over! New JAVAPRO edition 'Mastering #Java Complexity' is out now & FREE to download! More expert insights, community voices & what you need to know. Want the latest #JAVAPRO issues? Subscribe to our news & get every new PDF: javapro.io/2026/10/29/always… #AI #API #JVM
1
2
1
9
345
Markus Kett retweeted
Why use Python or Bash when you already know #Java, #Kotlin or #Scala? @li_haoyi explores the potential of #JVM scripting – from performance and tooling to the challenges of Maven. Learn how Mill and JBang make scripting easier: javapro.io/2026/10/29/script…
3
1
6
171
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
2
4
227
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
2
2
81
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
4
10
341
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
2
5
182
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
2
5
117
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
2
2
85
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
1
4
1
8
227
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
2
2
120
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
2
4
121
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
2
5
185
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
2
3
156
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
2
5
192
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
2
3
135
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
2
1
4
150
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
1
5
7
183
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
2
2
178
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
1
2
6
216
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
3
5
148