Jean-François James

Category: Java

  • Running MicroProfile reactive with Helidon Nima and Virtual Threads

    I recently became interested in Helidon as part of my investigations into Java Loom. Indeed, version 4 is natively based on Virtual Threads. Before going any further, let’s introduce quickly Helidon. Helidon is an Open Source (source on GitHub, Apache V2 licence) managed by Oracle that enables to develop lightweight cloud-native Java application with fast…

  • Optimize your code for Quarkus

    My previous article, was about running a JakartaEE/MicroProfile application with minimum changes. My purpose was to keep the Java code as standard as possible so that it can keep running on other implementations such as OpenLiberty, Payara, KumuluzEE, TomEE. This article proposes an alternative: how to optimize your code for Quarkus? It turns out that…

  • Run your Jakarta EE/MicroProfile application on Quarkus with minimum changes

    Quarkus 1.0.0.Final has been released, so I think it’s time to go beyond the “Get started” guides and to give it a try. In this article, I’m going to illustrate how to run an existing Jakarta EE/MicroProfile application on Quarkus, both in JVM and native modes, with minimum changes on the code and the configuration. I’ve…

  • Back from Oracle Code One 2019

    From September 15 to 19, I had the chance to participate in the event Oracle Code One San Francisco as a speaker. Here is my feedback. What is Oracle Code One? Oracle Code One San Francisco is one of the leading annual international meeting for developers. It is organized in parallel to another major event,…

  • Back from Devoxx France 2019

    From 16 to 19 April took place the 8th edition of Devoxx France in Paris at the Palais des Congrés. It aimed to be the main event for passionate French developers. Indeed it is clearly « the place to be » during these 3 days: a unique opportunity to recharge your batteries, to meet interesting people, to get new…

  • GraphQL with KumuluzEE

    In the context of my contribution to the recently started MicroProfile GraphQL initiative, I’ve decided to give KumuluzEE GraphQL a try in order to  get some interesting inputs. I first heard of KumuluzEE in 2015 when it won Java Duke’s Choice Award.  I must admit that I didn’t pay much attention to it so far.…

  • Running GraphQL spqr and JNoSQL on GlassFish 5.1

    As you may know, GlassFish 5.1 has been recently released. This is the first Jakarta EE release of GlassFish. I’ve taken this opportunity to deploy  an application mixing GraphQL spqr and JNoSQL (backed by MongoDB) on it. And guess what? It works! This is a preliminary work for the MicroProfile GraphQL initiative that has just…

  • Discovering JNoSQL

    JNoSQL is an Eclipse project which, according to its definition: “is a Java framework that streamlines the integration of Java applications with NoSQL databases. It defines a set of APIs to interact with NoSQL databases and provides a standard implementation for most NoSQL databases.” The ambition of JNoSQL is to provide a consistent developer experience…

  • When GraphQL meets MicroProfile

    After a year of actively observing the transition from Java EE to Jakarta EE (including several conferences I have given on the subject), I’ve decided to get more concretely involved in 2019. I’ve taken the opportunity to participate to the MicroProfile GraphQL initiative. In this blog post I’m going to explain how the group started, what…

  • About “Java EE 8 High Performance” by Romain Manni-Bucau

      First off, I must say that my opinion on this book might be a little biased. Indeed, the author Romain Manni -Bucau had worked for several years in my team at Atos Worldline. I’ve known him first as an intern and have been impressed by his capacity to deep dive and quickly into technical…