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Observability isn’t Pillars Tracing and OpenTelemetry Background Developer Observability Enough Exposition How Does This Help at 2AM? Final Word Once we press the merge button, that code is no longer our responsibility. If it performs sub-optimally or has a bug, it is now the problem of the DevOps team, the SRE, etc. Unfortunately, those teams work with a different toolset. …

I’ve taken a holiday this month, so probably missed a lot of the amazing JavaFX news, but still some things caught my attention and you can find them in this LinksOfTheMonth overview. But the most essential and thrilling news is the release of the new version of jfx-central.com! A complete new home for “all things JavaFX” thanks to the amazing …

Azul Platform Prime’s ReadyNow technology continuously learns from application usage across fleets of Java Virtual Machines (JVMs) and automatically selects the best warmup optimization patterns. ReadyNow Orchestrator delivers the highest possible optimized code speed at warmup while making deployment easier for containerized Java workloads and CI/CD pipelines, and requires no changes to Java applications. The combination of ReadyNow and ReadyNow …

As you might have read in this blogpost, Spring is introducing a RestClient in Spring 6.1 to interact with HTTP backends. Now some of you might be wondering as to the why, given we already have a plethora of other options such as RestTemplate, WebClient, HttpUrlConnection, …​ As we can see on the javadoc page RestTemplate got quite massive over …

The Spring Boot Maven Plugin makes creating a Docker image from your application very easy! In this article, we give you some extra tips and examples for configuring Spring Boot to define the Java runtime used in such a Spring Boot Docker image and explain how to add additional environmental options to ease debugging. For this post, I got the …

In an ideal world, every piece of code we write would be easily testable, clearly understood, and perfectly maintainable. However, reality often presents us with complex problems and solutions that aren’t always straightforward. Writing testable code sometimes requires a thoughtful approach, deep consideration of the use cases, and even refactoring to ensure that the code is robust and fully tested. …

Flaky tests pose substantial challenges due to their unpredictable and inconsistent nature. Effectively addressing them requires a multi-faceted approach that involves the effective integration of strategy, process and resource alignment, and a deep understanding of flaky test causality. This post will walk you through this approach. Note! This post is part of a three-part series. If you’re not sure it’s …

I recently started work on a joint project with my colleague, Jason Koo. For this project, we want to import data from second brain apps (such as Obsidian, Notion, Evernote, etc) to Neo4j. Since I use Evernote, I was tasked with getting my notes out of Evernote. In this article, I will show you how to use the Evernote API …

Quite often when we are developing an application we need external services such as rabbitMQ, Kafka, etc. When you are developing locally, you are quite likely using a docker-compose file to start these up, and I am certainly (hopefully) not the only one that has forgotten at least once to start these instances up. And maybe you are even already …

I’ve just read the (free) OpenJDK Migration for Dummies book. It was well worth my time! I first started using Java in 1998, so I’ve got a long history with it and feel very comfortable with the language itself. However, the licensing changes and proliferation of OpenJDK distributions are much more recent, and those aspects can be a bit confusing. …