Friends of OpenJDK Today

Pi4J provides a friendly object-oriented I/O API and implementation libraries for Java Programmers to access the full I/O capabilities of the Raspberry Pi platform. The project “hides” the complexity to interact with electronic components through different ways of communication (SPI, …

Hello again! In this article (Part 1), we will discuss two common ways to build modern software systems: Event-Driven Architecture (EDA) and Change Data Capture (CDC). They serve different purposes but can work well together in some situations. we’ll explain …

Table of Contents Put a stake through the heart of undead codeAzul Code Inventory can help remove undead codeGradle Devlocity can help automate tasks to improve productivity  10-30% of the custom code in applications is undead code and can just …

Table of Contents TagsTaggingConclusion Ever wonder how the JDK Flight Recorder (JFR) keeps track of the classes and methods it has collected for stack traces and more? In this short article, I’ll explore JFR tagging and how it works in …

Table of Contents The problemDevelopment ContainersIntroducing DevPodConclusion I come relatively late to the subject of Remote Development Environments (also known as Cloud Development Environments). The main reason is that I haven’t worked in a development team for over six years. …

Table of Contents A story about legacyEvaluating SpEL expressionsImplementing the audit adviceTesting the audit aspectImprovementsFootnotes In this article, we’ll implement a declarative API to perform tasks belonging to cross-cutting concerns, using auditing as an example. We’ll see how SpEL and …

Table of Contents VideoPodcast (audio only)GuestsLinksContent In this Foojay podcast, we dive into a few articles that were published recently and focus on code. Video Podcast (audio only) Guests Links Content 00:00 Introduction of the topics and guests 00:55 Wim …

Table of Contents Spring save() methodPatch YearCustom CypherProjectionsProjection as MovieMovie entity as projectionWrapping Up!Resources After working on a new online Spring Data Neo4j course, I learned a couple more things about updating an entity. The course required a different set …

Table of Contents IndexHow It Works1. Define a Time Window2. Track Requests3. Remove Expired Entries4. Rate Limit CheckHow to Implement It with Redis and Java1. Log Each Request (If Allowed)2. Remove Expired Entries3. Count Requests in the Time WindowImplementing it …

On Thursday, March 13, Azul is hosting a virtual celebration of 30 years of Java, starting at 09:00 PST / 17:00 GMT / 18:00 CET. In addition to discussion panels, including a Friends of OpenJDK Panel with Marit Van Dijk, …

Table of Contents CoreApplicationsGamesComponents, Libraries, ToolsPodcasts, Videos, BooksConferencesTutorialsMiscellaneousJFX Central Here is the first overview of the JavaFX LinksOfTheMonth for 2025. You can find the weekly lists on jfx-central.com. Did we miss anything? Is there anything you want to have included …

Table of Contents The contextGetting my feet wetStoring cookiesAdapting to realityConclusion In my previous company, I developed a batch job that tracked metrics across social media, such as Twitter, LinkedIn, Mastodon, Bluesky, Reddit, etc. Then I realized I could duplicate …