Building thin Docker images using multi-stage build for your java apps!
Build thin Docker images for Java apps with multi-stage builds: smaller images, cleaner Dockerfiles, and a working Maven example.…
Reactive Streams example - Java 9
A hands-on Reactive Streams example in Java 9: publishers, subscribers, and the Flow API demonstrated by streaming tweets.…
A gentle introduction to CDI 2.0 in Java SE
A gentle introduction to CDI 2.0 in Java SE: bootstrap Weld outside an app server and use dependency injection in plain Java.…
Configuring sleuth valve for Tomcat - Spring Boot
Configure a Spring Cloud Sleuth valve for embedded Tomcat to trace requests across microservices with consistent IDs in logs.…
Continuous deployment with Maven, Jenkins and WAS
Set up continuous deployment to WebSphere Application Server with Maven and Jenkins: plugin setup, jars, and pipeline configuration.…
Yo! Avoid finalizers.
Why you should avoid Java finalizers: unpredictable, dangerous, and unnecessary. What Effective Java item 7 means in practice.…
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.…