Markus Eisele
@myfear.com
Developer, turned to consulting, developer relations, sales, and landed in marketing.
Writing books for #Oreilly.
Into Java, Kubernetes and such.
Legal called to tell you that I'm not officially speaking for IBM.
Writing books for #Oreilly.
Into Java, Kubernetes and such.
Legal called to tell you that I'm not officially speaking for IBM.
Pinned
Markus Eisele
@myfear.com
· 10d
My new book with Alex Soto Bueno and Natale Vinto just dropped:
Applied AI for Enterprise Java
The practical field guide for Java developers bringing AI to production.
Full story (and how it came to life between family, travel, and too much coffee):
buff.ly/2iDl9ba
#Java #AI #Quarkus #LangChain4j
Applied AI for Enterprise Java
The practical field guide for Java developers bringing AI to production.
Full story (and how it came to life between family, travel, and too much coffee):
buff.ly/2iDl9ba
#Java #AI #Quarkus #LangChain4j
Quarkus introduced a killer feature for anyone working on modern Java apps: Grafana Dashboards-as-Code.
Drop JSON dashboards into META-INF/grafana/, start Dev Services, and boom — Grafana auto-loads a fully wired observability stack.
buff.ly/KAm0B2O
#Java #Quarkus #Observability #Grafana #AI
Drop JSON dashboards into META-INF/grafana/, start Dev Services, and boom — Grafana auto-loads a fully wired observability stack.
buff.ly/KAm0B2O
#Java #Quarkus #Observability #Grafana #AI
November 28, 2025 at 7:15 AM
Quarkus introduced a killer feature for anyone working on modern Java apps: Grafana Dashboards-as-Code.
Drop JSON dashboards into META-INF/grafana/, start Dev Services, and boom — Grafana auto-loads a fully wired observability stack.
buff.ly/KAm0B2O
#Java #Quarkus #Observability #Grafana #AI
Drop JSON dashboards into META-INF/grafana/, start Dev Services, and boom — Grafana auto-loads a fully wired observability stack.
buff.ly/KAm0B2O
#Java #Quarkus #Observability #Grafana #AI
Quarkus 3.30 is here!
✨ @JsonView support on REST Client
⚡ Hibernate Validator 9.1 with major performance improvements
🔐 New CLI decrypt command for secrets
🔒 Enhanced OIDC token propagation with method-level control
> quarkus update
Full details: buff.ly/ytuBlYx
#Quarkus #Java
✨ @JsonView support on REST Client
⚡ Hibernate Validator 9.1 with major performance improvements
🔐 New CLI decrypt command for secrets
🔒 Enhanced OIDC token propagation with method-level control
> quarkus update
Full details: buff.ly/ytuBlYx
#Quarkus #Java
Quarkus 3.30 - JsonView on REST Client, Hibernate Validator 9.1, CLI decrypt command, and more
Quarkus: Supersonic Subatomic Java
buff.ly
November 28, 2025 at 6:08 AM
Quarkus 3.30 is here!
✨ @JsonView support on REST Client
⚡ Hibernate Validator 9.1 with major performance improvements
🔐 New CLI decrypt command for secrets
🔒 Enhanced OIDC token propagation with method-level control
> quarkus update
Full details: buff.ly/ytuBlYx
#Quarkus #Java
✨ @JsonView support on REST Client
⚡ Hibernate Validator 9.1 with major performance improvements
🔐 New CLI decrypt command for secrets
🔒 Enhanced OIDC token propagation with method-level control
> quarkus update
Full details: buff.ly/ytuBlYx
#Quarkus #Java
LangChain4j 1.9.0 is out!
- Generic agentic planner
- MCP WebSocket transport support
- Anthropic support via Vertex AI
- GPT-5 reasoning effort control
- Dynamic chat memory window sizing
- Enhanced guardrails with validation metrics
and more!
buff.ly/XY0XtaD
- Generic agentic planner
- MCP WebSocket transport support
- Anthropic support via Vertex AI
- GPT-5 reasoning effort control
- Dynamic chat memory window sizing
- Enhanced guardrails with validation metrics
and more!
buff.ly/XY0XtaD
Release 1.9.0 and 1.9.0-beta16 · langchain4j/langchain4j
Notable Changes Agentic: Introduce a generic agentic planner and reimplement all agentic patterns through it by @mariofusco in #3929 MCP: WebSocket transport support by @jmartisk in #4032 Gemini: ...
buff.ly
November 27, 2025 at 11:00 AM
LangChain4j 1.9.0 is out!
- Generic agentic planner
- MCP WebSocket transport support
- Anthropic support via Vertex AI
- GPT-5 reasoning effort control
- Dynamic chat memory window sizing
- Enhanced guardrails with validation metrics
and more!
buff.ly/XY0XtaD
- Generic agentic planner
- MCP WebSocket transport support
- Anthropic support via Vertex AI
- GPT-5 reasoning effort control
- Dynamic chat memory window sizing
- Enhanced guardrails with validation metrics
and more!
buff.ly/XY0XtaD
I created a Dynamic Badge Generator with #Quarkus, #QuickJS4j, #Batik, and a Qute UI playground.
You can build your own custom SVG/PNG badges… including a Quarkus-powered preset gallery.
It’s creative, nerdy, and surprisingly useful.
And yes, I wrote JavaScript. It hurt a little. 😅
buff.ly/Z4ZmZMv
You can build your own custom SVG/PNG badges… including a Quarkus-powered preset gallery.
It’s creative, nerdy, and surprisingly useful.
And yes, I wrote JavaScript. It hurt a little. 😅
buff.ly/Z4ZmZMv
November 27, 2025 at 7:15 AM
I created a Dynamic Badge Generator with #Quarkus, #QuickJS4j, #Batik, and a Qute UI playground.
You can build your own custom SVG/PNG badges… including a Quarkus-powered preset gallery.
It’s creative, nerdy, and surprisingly useful.
And yes, I wrote JavaScript. It hurt a little. 😅
buff.ly/Z4ZmZMv
You can build your own custom SVG/PNG badges… including a Quarkus-powered preset gallery.
It’s creative, nerdy, and surprisingly useful.
And yes, I wrote JavaScript. It hurt a little. 😅
buff.ly/Z4ZmZMv
#note-gen: A cross-platform Markdown note-taking application dedicated to using AI to bridge recording and writing, organizing fragmented knowledge into a readable note.
buff.ly/EremJ7H
#markdown #productivity
buff.ly/EremJ7H
#markdown #productivity
GitHub - codexu/note-gen: A cross-platform Markdown AI note-taking software.
A cross-platform Markdown AI note-taking software. - codexu/note-gen
buff.ly
November 26, 2025 at 4:46 PM
#note-gen: A cross-platform Markdown note-taking application dedicated to using AI to bridge recording and writing, organizing fragmented knowledge into a readable note.
buff.ly/EremJ7H
#markdown #productivity
buff.ly/EremJ7H
#markdown #productivity
Reposted by Markus Eisele
When plans change at 500 feet: Complex event processing of ADS-B aviation data with Apache Flink buff.ly/V4k4kkp
When plans change at 500 feet: Complex event processing of ADS-B aviation data with Apache Flink
Using open-source Apache Flink stream processing to process real time aviation data to find missed approaches and paired runway landings…
buff.ly
November 26, 2025 at 2:39 PM
When plans change at 500 feet: Complex event processing of ADS-B aviation data with Apache Flink buff.ly/V4k4kkp
I finally did it — built my own EdWordle-style word cloud generator in Java 😄
Runs on Quarkus, streams PNGs over REST, and has a slick Qute UI to tweak everything live. Super fun project.
If you like fonts, visuals, and creative engineering, check it out 👇
buff.ly/kGIMftv
#java #quarkus #java2d
Runs on Quarkus, streams PNGs over REST, and has a slick Qute UI to tweak everything live. Super fun project.
If you like fonts, visuals, and creative engineering, check it out 👇
buff.ly/kGIMftv
#java #quarkus #java2d
November 26, 2025 at 7:15 AM
I finally did it — built my own EdWordle-style word cloud generator in Java 😄
Runs on Quarkus, streams PNGs over REST, and has a slick Qute UI to tweak everything live. Super fun project.
If you like fonts, visuals, and creative engineering, check it out 👇
buff.ly/kGIMftv
#java #quarkus #java2d
Runs on Quarkus, streams PNGs over REST, and has a slick Qute UI to tweak everything live. Super fun project.
If you like fonts, visuals, and creative engineering, check it out 👇
buff.ly/kGIMftv
#java #quarkus #java2d
Semantic Caching for Java: Turbocharge Your Quarkus + LangChain4j LLM Apps buff.ly/1w7Q37S
November 25, 2025 at 7:15 AM
Semantic Caching for Java: Turbocharge Your Quarkus + LangChain4j LLM Apps buff.ly/1w7Q37S
Explore Swift and Java interoperability - WWDC25 - Videos - Apple Developer buff.ly/5jPZU4K
#Java #Swift
#Java #Swift
Explore Swift and Java interoperability - WWDC25 - Videos - Apple Developer
Learn how you can mix Swift and Java in a single codebase. We'll introduce the swift-java interoperability project, which allows you to...
buff.ly
November 24, 2025 at 2:39 PM
Explore Swift and Java interoperability - WWDC25 - Videos - Apple Developer buff.ly/5jPZU4K
#Java #Swift
#Java #Swift
AI Coding Modes for Bob + Quarkus Dev Mode
How to turn AI assistants into real teammates:
• custom modes
• rule packs as skills
• live MCP integration
If you're a Java dev or architect thinking about AI in your workflow, this is the future.
buff.ly/B8v77EH
#Java #Quarkus #AI #Bob #DevMode
How to turn AI assistants into real teammates:
• custom modes
• rule packs as skills
• live MCP integration
If you're a Java dev or architect thinking about AI in your workflow, this is the future.
buff.ly/B8v77EH
#Java #Quarkus #AI #Bob #DevMode
November 24, 2025 at 7:15 AM
Why Standards Matter More Today: From Fear of Lock-In to Foundations for Choice buff.ly/l7ZaCHC
Why Standards Matter More Today: From Fear of Lock-In to Foundations for Choice
Looking Back to Look Forward
buff.ly
November 23, 2025 at 2:39 PM
Why Standards Matter More Today: From Fear of Lock-In to Foundations for Choice buff.ly/l7ZaCHC
Still mapping Java enums the old way?
Quarkus 3 + Hibernate 7 now make it effortless with @EnumeratedValue.
No converters. No magic numbers. Just clean, type-safe mapping that works.
Full tutorial →
buff.ly/VmlGHtW
#JavaDevelopers #Quarkus #HibernateORM #JPA
Quarkus 3 + Hibernate 7 now make it effortless with @EnumeratedValue.
No converters. No magic numbers. Just clean, type-safe mapping that works.
Full tutorial →
buff.ly/VmlGHtW
#JavaDevelopers #Quarkus #HibernateORM #JPA
November 23, 2025 at 7:15 AM
Still mapping Java enums the old way?
Quarkus 3 + Hibernate 7 now make it effortless with @EnumeratedValue.
No converters. No magic numbers. Just clean, type-safe mapping that works.
Full tutorial →
buff.ly/VmlGHtW
#JavaDevelopers #Quarkus #HibernateORM #JPA
Quarkus 3 + Hibernate 7 now make it effortless with @EnumeratedValue.
No converters. No magic numbers. Just clean, type-safe mapping that works.
Full tutorial →
buff.ly/VmlGHtW
#JavaDevelopers #Quarkus #HibernateORM #JPA
Time to modernize your stack? Get a hands-on, step-by-step guide to migrating your #SpringBoot app to #Quarkus, covering dependencies, JPA, REST, and testing. #Java #TechMigration #ICYMI
buff.ly/d0Gy28A
buff.ly/d0Gy28A
Modernizing Your Stack: Migrating a Spring Boot App to Quarkus Step-by-Step
A hands-on, real-world walkthrough to help you modernize your Spring Boot application: Covering dependencies, JPA, REST, configuration, and testing.
buff.ly
November 22, 2025 at 11:00 AM
Time to modernize your stack? Get a hands-on, step-by-step guide to migrating your #SpringBoot app to #Quarkus, covering dependencies, JPA, REST, and testing. #Java #TechMigration #ICYMI
buff.ly/d0Gy28A
buff.ly/d0Gy28A
Someone told me my posts “sound like AI.”
So I built an AI detector in Java with Quarkus + LangChain4j.
It turns out detection is harder — and more fascinating — than you’d think.
Read the full breakdown ↓
buff.ly/Qm1KYIB
#Java #AI #Quarkus #LangChain4j
So I built an AI detector in Java with Quarkus + LangChain4j.
It turns out detection is harder — and more fascinating — than you’d think.
Read the full breakdown ↓
buff.ly/Qm1KYIB
#Java #AI #Quarkus #LangChain4j
November 22, 2025 at 7:15 AM
Someone told me my posts “sound like AI.”
So I built an AI detector in Java with Quarkus + LangChain4j.
It turns out detection is harder — and more fascinating — than you’d think.
Read the full breakdown ↓
buff.ly/Qm1KYIB
#Java #AI #Quarkus #LangChain4j
So I built an AI detector in Java with Quarkus + LangChain4j.
It turns out detection is harder — and more fascinating — than you’d think.
Read the full breakdown ↓
buff.ly/Qm1KYIB
#Java #AI #Quarkus #LangChain4j
Transform messy text into clean Java objects! Learn how to extract structured data with #Quarkus, #LangChain4j, and local #LLMs – no APIs or cloud needed! #Java #AI #DataExtraction #ICYMI
From Text to POJO: Extracting Structured Data with Quarkus, Langchain4j, and Local LLMs
Learn how to turn messy text into clean Java objects using Quarkus, Langchain4j, and Ollama. No APIs, no cloud, just pure local LLM power.
buff.ly
November 21, 2025 at 2:39 PM
Transform messy text into clean Java objects! Learn how to extract structured data with #Quarkus, #LangChain4j, and local #LLMs – no APIs or cloud needed! #Java #AI #DataExtraction #ICYMI
JUnit 6 is here — and it’s a real upgrade for Quarkus developers.
Unified versioning. Java 17 baseline. Fail-fast tests that actually save time.
Full hands-on walkthrough →
buff.ly/hFpjFlI
#Java #Quarkus #JUnit6 #Testing
Unified versioning. Java 17 baseline. Fail-fast tests that actually save time.
Full hands-on walkthrough →
buff.ly/hFpjFlI
#Java #Quarkus #JUnit6 #Testing
November 21, 2025 at 7:15 AM
JUnit 6 is here — and it’s a real upgrade for Quarkus developers.
Unified versioning. Java 17 baseline. Fail-fast tests that actually save time.
Full hands-on walkthrough →
buff.ly/hFpjFlI
#Java #Quarkus #JUnit6 #Testing
Unified versioning. Java 17 baseline. Fail-fast tests that actually save time.
Full hands-on walkthrough →
buff.ly/hFpjFlI
#Java #Quarkus #JUnit6 #Testing
Docling #Java is the official Java client and tooling for #Docling — a suite that simplifies document processing and parsing across diverse formats (with advanced PDF understanding) and integrates seamlessly with #GenAI frameworks.
Docling Java - Docling Java
Docling Java is the official Java client and tooling for Docling — a suite that simplifies document processing and parsing across diverse formats (with advanced PDF understanding) and integrates…
buff.ly
November 21, 2025 at 6:08 AM
Quarkus GraphQL Quickstart + MinIO as Object Store S3. It's much more than just a Quickstart ;-)
buff.ly/44QGJR5
#GraphQL #Java #quarkus #S3
buff.ly/44QGJR5
#GraphQL #Java #quarkus #S3
November 20, 2025 at 11:02 AM
Quarkus GraphQL Quickstart + MinIO as Object Store S3. It's much more than just a Quickstart ;-)
buff.ly/44QGJR5
#GraphQL #Java #quarkus #S3
buff.ly/44QGJR5
#GraphQL #Java #quarkus #S3
Built a tiny, serverless Markdown gist app with Quarkus + S3.
No database. No accounts. Just Java.
Powered by LocalStack for local testing and ready for the cloud.
🧠 New on TheMainThread →
buff.ly/j1gVK0t
#Java #Quarkus #AWS #LocalStack
No database. No accounts. Just Java.
Powered by LocalStack for local testing and ready for the cloud.
🧠 New on TheMainThread →
buff.ly/j1gVK0t
#Java #Quarkus #AWS #LocalStack
November 20, 2025 at 7:15 AM
Built a tiny, serverless Markdown gist app with Quarkus + S3.
No database. No accounts. Just Java.
Powered by LocalStack for local testing and ready for the cloud.
🧠 New on TheMainThread →
buff.ly/j1gVK0t
#Java #Quarkus #AWS #LocalStack
No database. No accounts. Just Java.
Powered by LocalStack for local testing and ready for the cloud.
🧠 New on TheMainThread →
buff.ly/j1gVK0t
#Java #Quarkus #AWS #LocalStack
Not your usual hashing guide.
In this new Quarkus post, I turn digest functions into tools for colors, cache keys, and distributed systems.
Because creativity in code starts with the little things.
👉 buff.ly/t9ppkqP
#Java #Quarkus #ApacheCommons #Developer
In this new Quarkus post, I turn digest functions into tools for colors, cache keys, and distributed systems.
Because creativity in code starts with the little things.
👉 buff.ly/t9ppkqP
#Java #Quarkus #ApacheCommons #Developer
November 19, 2025 at 7:15 AM
Not your usual hashing guide.
In this new Quarkus post, I turn digest functions into tools for colors, cache keys, and distributed systems.
Because creativity in code starts with the little things.
👉 buff.ly/t9ppkqP
#Java #Quarkus #ApacheCommons #Developer
In this new Quarkus post, I turn digest functions into tools for colors, cache keys, and distributed systems.
Because creativity in code starts with the little things.
👉 buff.ly/t9ppkqP
#Java #Quarkus #ApacheCommons #Developer
