Blockchain-Technology
Building a Reorg-Safe Blockchain Explorer in Java
A blockchain explorer must explain changing history. Build a Java indexing core that handles reorgs, preserves observations and protects finalized checkpoints.
Concurrency
Java 27 Structured Concurrency: Cancellation Is Part of Your Architecture
Parallel reads are easy to start. Java 27 structured concurrency makes their lifetime explicit—but cancellation still depends on your adapters.
Best Practices
Your Telemetry Needs Tests: OpenTelemetry Contracts for Java
The payment provider fails. Your checkout counter keeps rising. The dashboard looks healthy. The trace contains a checkout span, but the payment call sits in another trace. And somewhere in the exception data, a customer email has slipped into your observability platform. The application may have passed its functional tests. Read more