Victor Rentea

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Victor is a Java Champion, Speaker, and Independent Trainer with impressive experience: thousands of developers in over 40 companies followed his training or live-webinars until now. He is the founder of Bucharest Software Craftsmanship Community, one of the largest developer communities in Romania today, sharing his love for Clean Code, Refactoring, and Unit Testing every month.

Stable, Secure, and Affordable Java

Azul Platform Core is the #1 Oracle Java alternative, offering OpenJDK support for more versions (including Java 6 & 7) and more configurations for the greatest business value and lowest TCO.

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What do you know about the code changes that were just introduced into the codebase? When will you notice if something goes wrong?

Jakarta EE 11: Beyond the Era of Java EE

This user guide provides a brief history of Java EE/Jakarta EE and a detailed overview of some of the specifications that will be updated in Jakarta EE 11.

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Avoiding NullPointerException

The terrible NullPointerException (NPE for short) is the most frequent Java exception occurring in production, according to a 2016 study. In this article we’ll explore the main techniques to fight it: the self-validating model and the Optional wrapper. You should consider upgrading your entity model to either reject a null via self-validation or present the nullable field via a getter that returns Optional. The effort of changing the getters of the core entities in your app is considerable, but along the way, you may find many dormant NPEs.

Dec 22 2,9K

Victor Rentea

Java Core

Retweet on Twitter Foojay.io Retweeted

Interesting read on @foojayio about the current state of the @grailsframework, at @TheASF
Written by @spoole167 interviewing @JamesFredley
https://foojay.io/today/grails-isnt-done-yet-part-1-inside-the-asf-reboot/

11:31 AM · March 25, 2026

Retweet on Twitter Foojay.io Retweeted

#Java 26 is here, and its main purpose is to provide a solid foundation for future things to come. It comes with new features, performance improvements and multiple enhancements–my blog post has all the info! 🚀

07:15 AM · March 17, 2026