Vladimir D – Medium

Vladimir D

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What’s new in JUnit 6: Key Changes and Improvements

JUnit 6 is here, eight years after JUnit 5 was released. This isn’t just an incremental update; it’s a significant modernization leap.

Oct 1, 2025

What’s new in JUnit 6: Key Changes and Improvements

Oct 1, 2025

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Oracle Java Certification: do you need it?

Is it worth investing your money and effort to earn the title of “Oracle Certified Professional Java SE Developer”?

Sep 30, 2024

Oracle Java Certification: do you need it?

Sep 30, 2024

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Lazy vs Eager Singleton in Java

Why Eager Singleton should be preferred in most cases

Jul 9, 2023

Lazy vs Eager Singleton in Java

Jul 9, 2023

I believe there’s a difference between making premature optimizations and designing code with…

Jan 6, 2025

Jan 6, 2025

These are good techniques but always keep in mind one thing:

«Premature optimization is the root of all evil»

Oct 16, 2024

Oct 16, 2024

I'd add a modern (Java 14+) approach for declaring an immutable class:

public record Point(int x, int y) {

Oct 15, 2024

Oct 15, 2024

One of the biggest mistakes I've seen is nitpicking too much, it doesn't really improve the code…

Oct 13, 2024

Oct 13, 2024

It’s interesting how unordered() changes the behavior of other operations: for example, skip() and…

Oct 13, 2024

Oct 13, 2024

One of the best things about this approach is that you can add or remove conditions at runtime…

Also, if you don’t need such flexibility and use Java 14+ then “switch with arrow” may be the best:

Oct 7, 2024

Oct 7, 2024

I really like this part.

Oct 6, 2024

Oct 6, 2024

Vladimir D

Vladimir D

Software Engineer in Test (SDET) | Oracle Certified Java Developer | https://www.linkedin.com/in/vladimir-dmitrienko/

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