How to prevent JDT LS (via m2e) from adding generated-sources APT folders and org.eclipse.jdt.apt prefs to an Eclipse+Maven project in VS Code. If you open a Maven Java project in Visual Studio Code that also contains Eclipse project metadata (.project, .classpath, .settings/…), you might notice that VS Code’s Java tooling (JDT Language Server) “helpfully” edits […]
When working with Maven projects, the Surefire plugin is commonly used to execute tests, but it lacks a built-in feature to display the total execution time across all test suites. This can be particularly important when monitoring performance trends in larger projects with many test classes. Maven’s Surefire plugin reports execution time for individual test […]
I experimented with Copilot “Agent mode”: I told it to create a Maven plugin. (Let me stress that I already have some experience implementing and testing Maven plugins.) I’ll report my experience, which has been positive in some respects but disappointing in others. I use “Claude 3.5 Sonnet” model because that’s the one used in […]
This is the fourth part of a few tutorials on Java development with Neovim using the LazyVim setup. This post assumes you have already read and applied all the steps of the first, second, and third parts. You need Java installed (possibly 21), while Maven is optional. I will use this Maven example during the […]
This is the 5th post about using Java in Gitpod. It assumes you have already read the first, second, third, and fourth posts. We can benefit from automatic formatting. First, select (from F1) the command “View: Toggle Render Whitespaces”. We can see that the Maven archetype generated Java source code with spaces for indentation: I prefer […]
This is the third part of a few tutorials on Java development with Neovim using the LazyVim setup. This post assumes you already read and applied all the steps of the first part and the second part. You need Java installed (possibly 21), while Maven is optional. I will use this Maven example during the […]
This is the 4th post about using Java in Gitpod. It assumes you have already read the first, second, and third posts. Let’s now use the POM editor to update the version of JUnit (the Maven archetype is based on an old version of JUnit). When we open the “pom.xml” in the editor, we get a […]
This is the 3rd post about using Java in Gitpod. It assumes you have already read the first and second posts. On the bottom, we can see that there are two warnings on our project; let’s click the icon and see them in the “Problems” tab: Since this is not a Java project managed by […]
This is probably the beginning of a series of articles about testing Maven plugins. I’ll start with the Maven Embedder, which allows you to run an embedded Maven from a Java program. Note that we’re not simply running a locally installed Maven binary from a Java program; we run Maven taken from a Java library. […]
In a previous post, I showed how to start with Java and Maven in Gitpod. This is the second post of this series, where I show a few interesting tools provided by the IDE. As I said in the previous post, this might be unrelated to Gitpod since we’re using the tools provided by Visual […]
I have already blogged about Gitpod, which allows you to spin up fresh development environments from your GitHub projects so that you can code with Visual Studio on the web (that’s just a very reductive definition, so you may want to look at its website for the complete set of features). I have already shown […]
In this blog post, I will describe a few scenarios where you want to update versions in a multi-module Maven project consistently. In these examples, you have both a parent POM, which is meant to contain common properties and configurations to be inherited throughout the other projects, and aggregator POMs, which are meant to be […]
TL; DR: Xtext sources are now in a single Git monorepo (https://github.com/eclipse/xtext), and the build infrastructure is based entirely on Maven/Tycho (Gradle is not used anymore). Background A few years ago, Xtext sources were split into 6 separate GitHub repositories. I did not take part in that decision (I guess at that time, I wasn’t […]
While working on my TDD book, I played with Maven profiles to write the chapter. If you use Maven profiles, you might want to use an activation strategy to enable the profile under certain circumstances automatically. There’s also a particular option, “<activeByDefault>”, which seems self-explanatory. This must mean that that profile will be constantly active […]
I recently started to port all my Java projects from Travis CI to GitHub Actions, since Travis CI changed its pricing model. (I’ll soon update also my book on TDD and Build Automation under that respect.) I’ve always used caching mechanisms during the builds in Travis CI, to speed up the builds: caching Maven dependencies, […]
Before releasing Maven artifacts, you remove the -SNAPSHOT from your POMs. If you develop Eclipse projects and build with Maven and Tycho, you have to keep the versions in the POMs and the versions in MANIFEST, feature.xml and other Eclipse project artifacts consistent. Typically when you release an Eclipse p2 site, you don’t remove the […]
In this tutorial I’d like to show how to publish a Maven Site to GitHub Pages. You can find several documents on the web about this subject, but I decided to publish one myself because the documents I found refer to a deprecated plugin (https://github.com/github/maven-plugins/tree/master/github-site-plugin) or show complicated settings, also when using the official Maven […]
I haven’t been blogging for some time now. I’m getting back to blogging by announcing my new book on TDD (Test-Driven Development), Build Automation and Continuous Integration. The title is indeed, “Test-Driven Development, Build Automation, Continuous Integration (with Java, Eclipse and friends)” and can be bought from https://leanpub.com/tdd-buildautomation-ci. The main goal of the book is […]
I recently started to play with Sonarqube to reduce “technical debt” and hopefully improve code quality (see my previous post). I’d like to report on my experiences about using Sonarqube to analyze Xtend code. Xtend compiles into Java source code, so it looks like it is trivial to analyze it with Sonarqube; of course, Sonarqube will analyze […]
I recently started to play with Sonarqube to reduce “technical debt” and hopefully improve code quality. I’d like to report on my experiences about using Sonarqube to analyze Xsemantics, a DSL for writing rule systems (e.g., type systems) for Xtext languages. I was already using the Jenkins Continuous Integration server, and while building I was […]