OCI Object Storage and PARs Illustration

OCI Object Storage: Configure file upload with Quarkus on Always Free

Learn how to configure your Quarkus application to use OCI Object Storage. Leverage Always Free鈥檚 20GB storage and 10TB bandwidth to scale your media with PARs.

February 22, 2026 路 7 min 路 Matheus Oliveira
OCI Vault security illustration

Zero Trust in Practice: Protecting Secrets with OCI Vault and Quarkus

Upgrade your security to Zero Trust. Learn how to use OCI Vault and Hardware Security Modules (HSM) to protect your Quarkus application鈥檚 database secrets.

February 20, 2026 路 7 min 路 Matheus Oliveira
High-end Seinen manga style illustration of the Oracle Logo, featuring heavy ink brush strokes, intricate deep black cross-hatching, and a glowing golden digital aura.

SQL or NoSQL? Why Not Both? Using Oracle's Converged Database with Quarkus

Discover the power of Oracle鈥檚 converged database: how to persist and query native JSON documents using Quarkus and Hibernate Panache without needing a separate NoSQL database.

February 17, 2026 路 6 min 路 Matheus Oliveira
Ink-wash manga style illustration featuring a stone monolith shaped like a cylindrical database, with a glowing golden digital aura representing mTLS connection.

Quarkus + Oracle Autonomous DB: Building a Secure mTLS Connection

Learn how to connect Quarkus to Oracle Autonomous Database using mTLS Wallet authentication in OCI鈥檚 Always Free tier.

February 16, 2026 路 8 min 路 Matheus Oliveira
Oracle Cloud account creation interface

Oracle Cloud Free Tier: How to Get 24GB RAM and Database Free Forever

A step-by-step guide to creating your Oracle Cloud Free Tier account and securing 24GB of RAM and free databases forever.

February 15, 2026 路 5 min 路 Matheus Oliveira
Duke mascot in Cuphead style carrying a giant Quarkus injection needle

Quarkus Dependency Injection: The Ultimate Guide for Spring Developers

Understand how Quarkus reinvented Dependency Injection with ArC: zero runtime reflection, instant startup, and flexible configuration.

February 14, 2026 路 4 min 路 Matheus Oliveira
Starting in the Open Source world

How to Start Contributing to Open Source: The Definitive Guide

The digital world runs on Open Source. Discover how to get hands-on and start contributing to the projects that power the planet.

February 7, 2026 路 4 min 路 Matheus Oliveira

The First Contact and Quarkus Development Mode

A hands-on first contact: building your first API and discovering why Quarkus Dev Mode is a game changer for Spring developers.

January 31, 2026 路 6 min 路 Matheus Oliveira
Java Evolution to Cloud Native

The Java Renaissance: From J2EE to Cloud Native with Quarkus

Explore the evolution of Java: from the heavyweight J2EE servers to Quarkus鈥檚 subatomic efficiency in a Cloud Native world.

January 24, 2026 路 6 min 路 Matheus Oliveira
Testing errors

Unit Tests in Java - Introduction

A complete beginner鈥檚 guide to unit testing in Java, covering concepts, best practices, and examples with JUnit 5 and Mockito.

January 23, 2026 路 4 min 路 Matheus Oliveira