Tag Archives: java

Building A Microservice-Ready Monolith

By | February 2, 2023

Reading Time: 20 minutes When developing programs that are larger than minuscule I prefer to structure them in a fashion as once inspired by an article by Simon Brown named “An Architecturally Evident Coding Style” that I read some years ago. Not only does this help me to organize my code in a, to me, familiar way but it… Read More »

MQTT Broker-Client

By | February 20, 2022

Reading Time: 16 minutes In this article I will, using a test-case, show how to publish and consume MQTT messages using the reactive HiveMQ client library. I will use the Mosquitto MQTT broker for the test. The example application will be implemented using Spring Boot 3 and Java 17. The example will initially allow unauthenticated access that later will… Read More »

Completed Update of Core Spring 5 Certification in Detail

By | December 1, 2019

Reading Time: < 1 minute Just a short note to say that my book Core Spring 5 Certification in Detail has been updated to reflect the curriculum released by Pivotal in May 2019. Thanks for your patience if you have been waiting for this update! Please do not hesitate to contact me if there are any errors, omissions or with… Read More »

VisualVM and JDK Mission Control on Mac OS

By | November 21, 2019

Reading Time: 5 minutes Given that Oracle’s Java licensing model has changed, I have uninstalled all Oracle JDKs from my computer and am using SDKMAN to download free Java JDK versions. However I did not find my favourite Java JVM monitoring tools, VisualVM and Mission Control, in any of the JDKs that I downloaded with SDKMAN. VisualVM VisualVM was… Read More »

Coming update: Core Spring 5 Certification in Detail

By | October 12, 2019

Reading Time: < 1 minute After Pivotal have changed the topics of the Spring 5 certification, I have received several requests to update my book Core Spring 5 Certification in Detail. First of all, I want to thanks everyone for their encouragement and patience. It has been a very busy summer and autumn for me, but this is a short… Read More »

Spring Integration 5: Subscribable Message Channels – Common Properties

By | June 12, 2019

Reading Time: 10 minutes It’s been a long time since I started looking at Spring Integration 5 and after miscellaneous interventions, such as a book on the Spring Core certification, having moved and a job that provides a never-ending stream of surprises, I am finally back! This article is an article in a series of articles introducing Spring Integration… Read More »

Spring Integration 5 – Message Channels, Introduction and Common Properties

By | December 31, 2017

Reading Time: 21 minutes This article is an article in a series of articles introducing Spring Integration 5. I imagine most of the examples can be applied to earlier versions of Spring Integration as well, it just happens that I started out with Spring Integration 5 and I have little reason to investigate compatibility with previous versions. In this… Read More »

Spring Integration 5 – Cloning Messages

By | November 21, 2017

Reading Time: 11 minutes This is an article in a series of articles introducing Spring Integration 5. I imagine most of the examples can be applied to earlier versions of Spring Integration as well, it just happens that I started out with Spring Integration 5 and I have little reason to investigate compatibility with previous versions. The articles assume… Read More »