Oracle SQL Patterns for Financial Data
SQL patterns that come up repeatedly when working with financial data in Oracle — date handling, reconciliation queries, and aggregations that don't lie to you.
Rahul Chandna
JMeter for Load Testing Java APIs
Setting up JMeter to load test a Java REST API — the tests I actually run and what I look for in the results.
Maven Profiles — Compiling for WildFly and JBoss from the Same Codebase
How to use Maven profiles to build the same application for WildFly 17 in non-production and JBoss 4.1 in production.
Maven settings.xml — The File Everyone Edits Once and Then Forgets
What actually goes in Maven settings.xml, and how to use profiles to manage different environments without hardcoding anything.
Multicurrency Payments — What I Learned the Hard Way
Lessons from building and maintaining multicurrency payment systems in financial services.
Apache as a Reverse Proxy with Kerberos Authentication
Configuring Apache httpd as a reverse proxy with Kerberos (SPNEGO) SSO and IP whitelisting in front of a Java application.
Upgrading a Java 6 Codebase to JDK 11
Lessons from moving a 20+ year old Java codebase from JDK 6 to JDK 11 without production noticing.
JVM JIT — When the Compiler Removes Your Code
How the JVM's JIT compiler optimises code at runtime, and what that means for benchmarking and production behaviour.
Kubernetes Deployments — Getting Your Java App Running
The core Kubernetes concepts and manifests to deploy a Java application and keep it running reliably.
GitLab CI/CD Pipeline for Java Applications
Setting up a GitLab CI/CD pipeline to build, test, and deploy a Java application to VMs and Kubernetes.