Using Amazon RDS

Optional in Java 8

HiDPI and Retina

What is HiDPI Confused about HiDPI and Retina display? ― Understanding pixel density in the age of 4K

Eclipse Vert.x: tool-kit for building reactive applications on the JVM

Introduction to Vert.x A gentle guide to asynchronous programming with Eclipse Vert.x for Java developers Vert.x – From zero to (micro)-hero Vert.x Core Manual

Java 8 Tutorial

Kurs programowania w języku Java

Architecture decision record (ADR) templates, lifecycle steps, and sources

What Should Software Engineers Know about GDPR?

How Rainbow Tables work

API Security Checklist

Checklist of the most important security countermeasures when designing, testing, and releasing your API