programming

03 Dec 2025

DZone Java Zone

Stop Writing Excel Specs: A Markdown-First Approach to Enterprise Java

Design documents in Enterprise Java often end up trapped in binary silos like Excel or Word, causing them to drift away from the actual code. This pattern shows how to treat Design Docs as source code by using structured Markdown and generative AI.

We've all been there: the architecture team delivers a Detailed Design Document (DDD) to the development team. It's a 50-page Word file, even worse, a massive Excel spreadsheet with multiple tabs defining Java classes, fields, and validation rules.

03 Dec 2025 8:00pm GMT

02 Dec 2025

DZone Java Zone

Web App Load Testing Using Maven Plugins for Apache JMeter, and Analyzing the Results

In this article, we will walk you through how to conduct a load test and analyze the results using Java Maven technology. We'll covering everything from launching the test to generating informative graphs and tables.

For this demonstration, we'll utilize various files, including Project Object Model (POM) files, JMeters scripts, and CSV data, from the jpetstore_loadtesting_dzone project available on GitHub. This will help illustrate the steps involved and the functionality of the necessary plugins and tools. You can find the project here: https://github.com/vdaburon/jpetstore_loadtesting_dzone.

02 Dec 2025 9:00pm GMT

JDK 17 Memory Bloat in Containers: A Post-Mortem

When engineering teams modernize Java applications, the shift from JDK 8 to newer Long-Term Support (LTS) versions, such as JDK 11, 17, and soon 21, might seem straightforward at first. Since Java maintains backward compatibility, it's easy to assume that the runtime behavior will remain largely unchanged. However, that's far from reality.

In 2025, our team completed a major modernization initiative to migrate all of our Java microservices from JDK 8 to JDK 17. The development and QA phases went smoothly, with no major issues arising. But within hours of deploying to production, we faced a complete system breakdown.

02 Dec 2025 6:00pm GMT