With the April release of the Zulu Build of OpenJDK, Azul announced the integration of CRaC in its version 17 of Java for Linux. Coordinated Restore at Checkpoint (CRaC) is a feature introduced in OpenJDK to improve Java’s application startup and warmup times to milliseconds from seconds or even minutes, by allowing a running application to pause, snapshot its state, …

This is the second part of a series where I look into how Java JDBC connections to PostgreSQL are working, to understand how to optimally implement them. If you’ve landed on this article, it might be a good idea to read my first article as well, which gives an introduction and shares how JDBC communicates with PostgreSQL using simple and …

Imagine the scenario: you have good automated test coverage of your application code; you run your tests locally; and you have a Continuous Integration (CI) environment which runs your tests regularly. You’re doing everything right, right? Except… sometimes tests fail, and you’re not sure why. When you run the test locally, or a second time in the same environment, they …