Collection of useful or rather crucial information to know when dealing with database through Hibernate in Spring framework or ORMs in general, in order to avoid causing a bottleneck and a dramatic slowdown of the whole system.

An exercise for practicing concurrency where we will use LinkedBlockingQueue with single worker (thread) per job type (key) to trigger work in a non-blocking way and also try out the Semaphore. Imagine publish/subscribe but without queuing and only doing 1 job at a time, but without any externals like Redis, RabbitMQ and so on, only Java.

Short reference for building a Spring boot application Docker container with Java 22.

Once you have a hammer, everything is a nail, but actually, you are holding a broken stick while trying to convince everyone that it’s a hammer because it can bash nails, and it gets the job done… eventually. And you’ve been using that stick for x years on so many things, it served you perfectly, it got the job done, and you became proficient with it. You know that, when others doubt it’s power that it’s just their lack of skill that’s the problem.

Concurrent programming has been out there for quite some time, take for example Erlang (1986.) and Lua (1993.) languages, but there is a period after 2012. or so, which, from my experience, seemed to receive the most evolutions in the land of web server concurrency development due to the increased requirement for efficiency and resilience.