Using jetstreamDB as in-memory Database for Java
JetstreamDB is a in-memory database engine for Java that claims to be built for ultra-high speed and the ability of managing complex data structures by storing real Java objects instead of serializing...
View ArticleTesting Java Applications for Resilience by Simulating Network Problems with...
When implementing distributed systems, client-server architectures and simple applications with network related functionalities, everything is fine when we’re in the development or in the testing stage...
View ArticleTesting OpenAPI / Swagger Schema Compliance with Java, JUnit and assertj-swagger
The OpenAPI and Swagger API description format are becoming important standards to specify API contracts for RESTful web services and the Microservices trend pushes the need for such contracts even...
View ArticleCapacity Planning using the Universal Scalability Law with Java and usl4j
Capacity planning is an important task when trying to anticipate resources and scaling factors for our applications. The usl4j library offers us an easy abstraction for Neil J. Gunther’s Universal...
View ArticleAnalyzing Java Applications on the Fly with Arthas
Arthas created by Alibaba is a tool that allows developers to connect to running Java applications without stopping them or suspending threads for debugging the application from the console. It offers...
View ArticleImplementing Reactive Client-Server Communication over TCP or Websockets with...
Reactive design or reactive architecture has an impact on how modern software systems are implemented. RSocket is a project that aims to adapt the benefits of the patterns described in the Reactive...
View ArticleNext Steps to Pattern Matching in Java with Java 12 and Switch Expressions...
It is interesting to see how the Java language evolves over time. One thing that I have always missed is pattern matching in a way similar to languages like Scala. Now there are different JDK...
View ArticleUsing Throwaway Containers for Integration Testing with Java, JUnit 5 and...
A lot of boilerplate code is written when developers need to test their applications with different connected systems like databases, stream platforms and other collaborators. Docker allows to handle...
View ArticleAnnotation based Kubernetes and Openshift Manifests for Java Applications...
Writing our manifest files for Kubernetes / Openshift often forces us to edit xml, json and yml files by hand. A new library, ap4k allows to specify metadata for these manifest files directly in our...
View ArticleTerminal Based Progress Bar for Java Applications
Recently I needed to add a progress bar to a Java based terminal/console application and I used a specific library that I’d like to demonstrate in the following snippet. Dependencies Using Maven, we...
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