Spring Security's SecurityContext get unexpectedly cleared in a MockMvc TestJun 14, 2025·3 min read·150
Mastering GitLab Parent‑Child Pipelines: Scalable CI for Multi‑Module Maven MonoreposBackground Recently, I redesigned my team's pipeline running on a multi-module Maven monorepo using GitLab CI. It wasn't that the previous setup was broken, but my team faced a few persistent issues tJun 5, 2026·14 min read·56
Maven 101 - Multi-ModuleIntroduction This is a follow-up post to Maven 101 - Basics. If you have not read that, I strongly suggest reading that before continuing on this. In this post, I will be focusing on using Maven with multi-module setup using the following structure. ...Oct 7, 2023·12 min read·1.5K
Maven 101 - BasicsIntroduction Maven is used to manage and build any Java-based project. It provides an opinionated way of the project structure, managing dependencies, building projects and deploying the artifacts. Project Object Model (POM) POM stands for Project Ob...Sep 16, 2023·11 min read·425
Spring Security: Configure debug mode programmaticallyIntroduction If you have used Spring Security before, you will likely enable the debug mode at some point @Configuration @EnableWebSecurity(debug = true) public class WebSecurityConfiguration { // omit } Start the application and you will see th...Jul 14, 2023·2 min read·378
Spring Security: Custom Pre-Authentication FlowIntroduction In one of my project setups, the authentication process is offloaded to Keycloak and set up with an Open Policy Agent sidecar in a typical Kubernetes deployment. Any request that comes to the service, will be pre-authenticated, and all c...Jul 9, 2023·12 min read·8.0K
Why RequestHeaderAuthenticationFilter is not registered as part of Spring Security Filter ChainBackground While I was writing for another blog post, I realize something interesting about RequestHeaderAuthenticationFilter where it isn't registered as part of the SecurityFilterChain. I thought this post should come first, to provide some sort of...Jun 7, 2023·9 min read·2.2K
Spring Boot Debezium (embedded) Engine with MongoDB as Source - Part 1I am exploring to use Debezium as my Change Data Capture tool to introduce it into my team/project. I wanted to keep it simple, hence I chose to go with the embedded engine. I wasn't able to find many examples of using MongoDB as a source database (e...Mar 12, 2023·7 min read·2.6K
