Understanding JIT compiler (just-in-time compiler)
How the Java JIT compiler works: bytecode to native code, C1/C2 tiers, and why the compiler matters most for JVM performance.…
Generate custom QRCode with logo image using zxing
Generate custom QR codes with a logo overlay in Java using ZXing, exposed as a small Spring REST service.…
Service registration & discovery with Spring Cloud Netflix - Eureka
Service registration and discovery with Spring Cloud Netflix Eureka: server setup, client registration, and failover basics.…
Getting started with Built-in NLP for Messenger Bots
Get started with built-in NLP for Messenger bots: enable it, customize with Wit.ai, and build a weather bot in Java.…
A simple sonar quality gates (groovy) script to Break the CI Build in Jenkins
Break Jenkins CI builds on SonarQube quality gate failures with a simple Groovy script. A fix for the broken plugin on Sonar 6.4.…
No! HTTP APIs are not necessarily Rest APIs
HTTP APIs are not necessarily REST APIs: what REST actually requires and why the distinction matters when designing services.…
Painless migration from svn to git (Gitlab)
Painless migration from SVN to GitLab: author mapping, history-preserving conversion, and repository cleanup step by step.…
Deep dive into git: Some useful git Commands
Useful and underrated Git commands: revert, bisect, stash and more, with examples that save you when things go wrong.…