In this article we will learn how to create and run a sample Quarkus 3 application which uses Hibernate ORM and JPA. We will create a sample REST Endpoint to expose the basic CRUD operations against a relational Database such as PostgreSQL.
F.Marchioni
Managing Environment Variables in GitHub Actions
GitHub Actions provides a powerful platform for automating workflows directly within your GitHub repositories. One essential aspect of workflow automation is managing environment variables, which allow you to securely store sensitive information and configuration settings. In this article, we’ll explore various methods for managing environment variables in GitHub Actions, along with a complete example to … Read more
How to print a Banner in Java easily
In this short wiki we will learn how to use the Figlet API to generate an AsciiArt Banners in Java applications. We will also show how to emed a sample example in a JBang Script.
Solving 0/1 nodes are available: 1 Insufficient memory
The error message “0/1 nodes are available: 1 Insufficient memory. preemption: 0/1 nodes are available: 1 No preemption victims found for incoming pod.” indicates your pod can’t be scheduled due to memory constraints. Here are the steps to address this issue-
RabbitMQ with Docker: A Comprehensive Guide
In this tutorial, we’ll explore how to combine RabbitMQ and Docker to improve message queuing, enhance system reliability, and simplify deployment. Whether you’re an experienced developer or just starting out, this guide will give you the knowledge and practical insights to make the most of RabbitMQ with Docker. What is Rabbit MQ? RabbitMQ is a … Read more
Maven is using the wrong version: Explained
In this article we will go through a common issue that you can face when compiling and running applications with Maven. The syntom of this issue is that Maven is using the wrong version during the execution. We will show the cause of the issue and the remediation.
How to use Hidden Classes in Java
Hidden classes ( available since Java 15 ) allow developers to define classes that cannot be directly accessed by other classes in the same program. These classes are designed for use by frameworks that generate classes at runtime without using the standard classloading mechanism. Purpose of Java Hidden Classes Hidden classes can enable frameworks to … Read more
Modern Java Pocket Guide available
Calling all Java enthusiasts! I’m excited to share that my latest tiny ebook is now live—a concise reference guide covering all the top features in Java from version 8 to the upcoming version 22! 🚀
How to manage WildFly metrics
To ensure reliable operation of Microservices it is essential to monitor Key system and application parameters. By using Microprofile Metrics you can gather this information through a set of well-known endpoints. Let’s see how to use it with WildFly application Server.
TestContainers made simple with JBang
This article discusses how to execute Tests on Container Images using JBang as Java scripting tool and TestContainers + JUnit 5 Jupiter as Test library.