Java

Your Java Heap Dumps Contain Plain-Text Passwords

A hands-on guide to detecting and removing passwords, tokens, and PII from .hprof files using hprof-redact.

Mar 12 • Markus Eisele

Stop Breaking at 2am: MicroProfile Done Right on Open Liberty

Most developers think MicroProfile is about annotations.

Mar 8 • Markus Eisele

Stop Breaking HashSet: equals() and hashCode() for JPA in Quarkus

Production-safe entity equality patterns for Panache, Hibernate proxies, and stable hashing, with EqualsVerifier tests

Mar 6 • Markus Eisele

Fixing Panache: How Quarkus Unifies Blocking and Reactive Hibernate

A hands-on deep dive into stateless sessions, reactive repositories, and build-time validated queries in the new experimental Panache API.

Mar 3 • Markus Eisele

This Is What Happens When You Push Quarkus Way Too Far

From Gen-Alpha APIs and Minecraft observability to JVM memes and AI hallucinations — what this talk reveals about Quarkus as a modern Java platform.

Feb 26 • Markus Eisele

Your Java Architecture Is Lying to You: Enforcing Real Boundaries with Quarkus

Executable architecture rules with Quarkus and Taikai to catch violations early, enforce boundaries, and keep large Java codebases maintainable.

Feb 25 • Markus Eisele

Exposing MCP from Legacy Java: Architecture Patterns That Actually Scale

How to integrate Model Context Protocol with Jakarta EE without breaking security, transactions, or your production systems

Feb 22 • Markus Eisele

Validate Once, Enforce Everywhere: Protobuf + Protovalidate + Quarkus REST

Move common validation into Protobuf schemas for cross-language consistency

Feb 14 • Markus Eisele and Joe Rinehart

Owning Your Workout Data with Java, Quarkus, and PostGIS

From Apple Health and Strava exports to spatial storage, heart-rate extraction, and server-side visualization in a real Java backend

Feb 13 • Markus Eisele

Listening to the Fediverse with Java: A Real-Time Quarkus Experiment

A hands-on Quarkus tutorial using Server-Sent Events, buffered ingestion, and PostgreSQL Dev Services to analyze real Fediverse conversations.

Feb 11 • Markus Eisele

The End of “Python for Scripts, Java for Systems”

How I stopped worrying and learned to love the script.

Feb 7 • Markus Eisele

Stop Redeploying for Toggles: Feature Flags for Serious Java Systems

How to build a production-grade feature flag system in Java with database-backed toggles, security-aware evaluation, and a live Qute dashboard.

Feb 2 • Markus Eisele

#nojs-banner { position: fixed; bottom: 0; left: 0; padding: 16px 16px 16px 32px; width: 100%; box-sizing: border-box; background: red; color: white; font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; font-size: 13px; line-height: 13px; } #nojs-banner a { color: inherit; text-decoration: underline; } This site requires JavaScript to run correctly. Please turn on JavaScript or unblock scripts