In late March 2020 I ran a quiz on Maven Dependency Resolution which turned out to be an eye opener for some people (including myself!). You can read the whole questionnaire, results, and analysis here. One of the surprising results was found in the very first question, a rather innocuous one but it resulted in a major stumbling block for 2/3 of respondents! Here’s the question What’s surprising is that only 36% people chose the correct answer and a similar percentage chose the “Build error” option because clearly duplicate dependencies ought to cause a build error, right? Wrong! Maven does Read More
Author: aalmiray
Announcing the Gradle Enforcer Plugin
Inspired by the popular Maven Enforcer plugin I’m happy to announce that its Gradle counterpart has been released, say hello to the enforcer-gradle-plugin! The behavior provided by Gradle Enforcer plugin is very similar to what the Maven Enforcer plugin provides, in the sense that rules will be executed during a particular phase of the build; any rule violations result in a build failure. Rules are typically setup to check for preconditions and requirements. The Maven Enforcer plugin provides a set of core rules and extra rules. In turn, the Gradle Enforcer plugin provides a similar set plus a few rules Read More
Configuring the OCI Gradle Build Cache plugin with Travis-ci
The following post describes how to configure the oci-gradle-build-cache plugin to write to the cache when running on Travis-ci. I’m assuming dear reader that you have an Oracle Cloud account ready, but if that were not to be the case then you can sign up for an Always Free tier account at https://www.oracle.com/cloud/free/. Let’s get started! Step 1: Create a config file There are a couple of ways to configure the plugin, we’ll use a configuration file whose format is specified at this page; you must gather the following information from your account tenancy id user id default home region Read More
Running Gradle inside Maven
As organizations evolve so do their codebases. Apache Maven and Gradle are the most popular and widely used build tools in the JVM. Usually multi-project builds rely on a single build tool to accomplish the job but there may be uses cases where you need to combine both, having Maven be the one leading the pack. One possible use case is to build a companion Gradle plugin, this is the case for ByteBuddy and Quarkus; another use case is to run a composite build with Maven and Gradle projects mixed together. In this post I’ll show how Gradle can be Read More
Hack.Commit.Push Paris 2019
I’m so excited to share what happened at Hack.Commit.Push Paris 2019. It’s said that an image speaks louder than words, so here it is Success! The event transcurred as follows as far as I remember (we event organizers participated in the hacks too thus we ended up jumping from one place to the next, fun!). We arrived in the morning to help setup the venue and get ready for registration, just to find out that Florent, Dilek, Hervé, and Michael had made the necessary preparations already, there were so eager to get started that they beat us to the punch. Read More
Composite builds with Maven and Gradle
Gradle offers a neat feature called “Composite Builds” which allows one project to consume artifacts from other builds as if they were part of a single coherent unit. This feature is pretty easy to setup, however you might not know that it’s possible to do the same with Maven. Here’s how. Let’s say you have a producer and consumer projects, where producer is set as a dependency on consumer. If these two projects are to have their own release lifecycles their file structure may look like this The contents of the Gradle build files look like so And in the Read More
Announcing oci-gradle-plugin version 0.1.0
The first release of the OCI Gradle Plugin is out! The plugin lets you interact with the Oracle Cloud Infrastructure Java SDK. The behavior provided by OCI Java SDK is quite extensive, thus for this release the plugin delivers the minimal features required to setup and work with instances. Here’s an example, the following command will setup an Instance in a particular Compartment, while at the same time setting up a new VCN, Subnets, an InternetGateway and an InstanceConsoleConnection, allowing you to SSH to the freshly created instance $ ./gradlew setupInstance \ –compartment-id=ocid1.compartment.oc1…noa \ –instance-name=test \ –image=Oracle-Linux-7.6-2019.04.18-0 \ –shape=VM.Standard2.1 \ Read More
Hack.Commit.Push
Last month I twitted a rather cryptic message Hack — Andres Almiray (@aalmiray) March 1, 2019 Commit — Andres Almiray (@aalmiray) March 2, 2019 Push — Andres Almiray (@aalmiray) March 2, 2019 Followed by another one hack.commit.push — Andres Almiray (@aalmiray) March 8, 2019 Today I’m happy to announce the meaning behind these messages: http://hack-commit-pu.sh, the first ever, full day Hackergarten conference is open! If you have attended a Hackergarten before then you know what to expect, if not then let me say a few words about Hackergarten. The group was born in Basel, Switzerland back in 2010. The point Read More
New features in Kordamp Gradle plugins
Version 0.14.0 of the Kordamp Gradle plugin suite is ready! This release brings a host of updates that should make your life easier when looking for gaining insights into your build. To begin with, all reporting tasks provided by the org.kordamp.gradle.base plugin will use ANSI colors if the terminal supports them. This make its easier to determine a particular setting, here’s for example the settings for the info and test (new) sections found in the alibaba/Sentinel project: The color code is as follows white: property names yellow: string literals cyan: numbers green: boolean, when true red: boolean, when false Speaking Read More
Building ThinWARs with Gradle
UPDATE: As it turns out the two POM files (javaee-api 8.0) (microprofile 1.3) consumed by the build files shown here are not real BOMs. A POM is considered a BOM if it defines a <dependencyManagement> block which neither of these files do. They are just regular POM files for which the regular dependency resolution mechanism works out of the box. This means there’s no strict requirement for building ThinWARs with Gradle 5.0, you can use earlier versions too. The Gradle build file has been updated to reflect this change however the screencast remains unchanged. Java Champion Adam Bien has advocated Read More