Java

In this post, we are going to enhance our Eclipse Vert.x application we created in the previous post to support external configuration, and then show how to deal with different configuration sources.

This series takes the reader on a journey, taking a peek inside an Open Innovation Labs Residency. A top tier experience for any customer, a residency exposes them to open collaboration, open technologies, and fast agile application delivery methods.

This is week three of a ten-week series about Istio, kubernetes and OpenShift. The series started with an introduction to Istio, and this week covers Istio Circuit Breaker: How To Handle (Pool) Ejection.

Red Hat Decision Manager 7 has been recently released. Decision Manager 7 is the successor of Red Hat JBoss BRMS, our business rules and decision management platform. In this post we will have a look at the main new features of the platform and we will provide instructions on how to get started

Red Hat JBoss® BPM Suite and Red Hat Decision Manager (formerly Red Hat JBoss BRMS) both use an artifact packaging known as a "KJAR", or knowledge artifact, since version 6. This article will review what is this file type and what separates it from a standard JAR file.

Start learning about Camel in these excerpts from the book Camel in Action by Claus Ibsen and Jonathan Anstey.

This Vert.x crash class will present how you can develop a simple application using Vert.x, how to test it, package it and run it. So you have a great start on the road to building an amazing system on top of Vert.x.

This article covers Istio Route Rules and telling Service Requests Where To Go. OpenShift and Kubernetes do a great job of working to make sure calls to your microservice are routed to the correct pods. What if, however, you want to customize the routing?

Read this article if you interested in an introduction to the concepts of process management (BPM); you want to learn how your business can leverage process driven application delivery; or you are looking for an easy to understand guide to mastering Red Hat JBoss BPM suite tooling.

This article will describe the main features of the MicroProfile Fault Tolerance specification and then demonstrate how it was implemented in WildFly Swarm, the Red Hat MicroProfile implementation.

Red Hatter, Eric D. Schabell, provides a step-by-step review of Red Hat JBoss BPM Suite, a powerful business process management system.

this is an introduction to Istio. Istio helps automate the developer time to implement a feature. The combination of code complexity and code heft (i.e. number of lines of code) can put a drag on an implementation. Istio is a better way.

This article shows how developers writing Java-based microservices can leverage the Eclipse Microprofile 1.2 specifications for Configuration and Health checks to take advantage of the management capabilities provided by Red Hat OpenShift and Kubernetes.

demonstrating how to use a custom version of Hibernate (Hibernate ORM and Hibernate Search) on a WildFly Swarm Java application.

Red Hat JBoss Fuse 7.0 technical preview three is out today! On the pathway to become one of the best cloud-native integration platforms, JBoss Fuse gives developers the freedom to choose how they want to develop the integration solution, where they want to deploy it.

Using Byteman to Find Out Why the TimeZone Changed on a Java App Server. This article is about a real problem I faced where the timezone on a Java application server (in my case it was JBoss) changed unexpectedly during the run time of the server.

all about scheduling speakers and rooms for Voxxed Days Zurich 2018 using the tool: OptaPlanner. This involves Reading, evaluating, discussing, and selecting from the 200+ proposals that arrive every year is a long and challenging process.

A user guide of Java Class Metadata. I presented a talk last week in the Free Java Room at FOSDEM 2018 on the subject of Java Class Metadata, explaining what it is, why it helps to know about it, what you might do to measure it, and reduce the impact of it's footprint on  your Java application.

This post provides an overview of the APIs and specifications in the Eclipse Microprofile 1.2 specification for Java. We connect these specifications and APIs with their architectural purpose for building robust cloud-native applications and microservices.

A DevNation Live session - MicroProfile - Microservices with Java EE

Eclipse Vert.x is increasingly popular for writing reactive applications on the JVM. Testing code with asynchronous operations is more challenging than it seems. JUnit 5 is a rewrite of the famous Java testing framework that brings new interesting features. Testing using JUnit 5 is now available in Vert.x

Applications running on OpenShift get their logs automatically aggregated to provide very valuable information on their state and health during tests and in production. In this blog I am covering a few points that may help you with bringing your logs from raw material to a more valuable product.

When using Byteman scripts for tracing and debugging with Red Hat JBoss Fuse and AMQ, learn how to use Java helper classes with for advanced options, such as viewing or modifying arguments, and utilizing 'java.util.logging' to inject messages into the existing logs.