Can You Explain the Diff Your AI Agent Just Wrote?
Every Java developer has been in a code review where the question is simple: What does this method do? The answer used to tell you …
Kotlin
Reflection-Free Serialization on the JVM: Four Formats In, Avro Out
I run a model layer that accepts the same business data in JSON, XML, YAML, and TOML and converts it all to Avro. The project was …
One Base URL, Many Coding Agents: What an OpenAI-Compatible Gateway Looks Like From java.net.http
Somewhere in every coding agent there is an HTTP client. Claude Code, Codex, Cursor, Cline, OpenCode: strip away the terminal UI or the …
“Commit created” — but it isn’t: why the agent’s word needs external verification, and what the mistake costs
A detailed report reads like proof. The agent lists the files it touched, names the branch, quotes a commit hash, adds a test count and …
Did Your AI Agent Ever Run a Debugger? One JVM Bug, Two Agent Runs
Java developers reach for the debugger without thinking about it. Set a breakpoint, run the failing test, look at the variables, then decide …
Getting Started with Exposed: Kotlin ORM Made Simple
Learn how to use Exposed, a lightweight SQL ORM for Kotlin. Discover DSL and DAO APIs, database support, and setup your first project.
You’re invited to IntelliJ IDEA Conf 2026!
You are invited to IntelliJ IDEA Conf 2026, a free virtual event on March 26-27, 2026. Learn about topics relevant to modern Java and …
Making illegal state unrepresentable
A couple of years ago, I wrote that The Builder pattern is a finite state machine!. A state machine consists of states and transitions …
Command completion (..) in IntelliJ IDEA
Command completion (..) extends regular completion. It lets you discover and use IntelliJ IDEA features without having to remember …
On dependencies in objects
In OOP, objects collaborate. The initial idea of collaboration, first found in Smalltalk, was for object A to send a message to object B. …