Vladimir D – Medium

Vladimir D

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Vladimir D

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Oct 1, 2025

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.

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

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Sep 30, 2024

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”?

Oracle Java Certification: do you need it?

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Vladimir D

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Jul 9, 2023

Lazy vs Eager Singleton in Java

Why Eager Singleton should be preferred in most cases

Lazy vs Eager Singleton in Java

Vladimir D

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Jan 6, 2025

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

Vladimir D

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Oct 16, 2024

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

«Premature optimization is the root of all evil»

Vladimir D

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Oct 15, 2024

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

public record Point(int x, int y) {

Vladimir D

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Oct 13, 2024

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

Vladimir D

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Oct 13, 2024

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

Vladimir D

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Oct 7, 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:

Vladimir D

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Oct 6, 2024

I really like this part.

Vladimir D

Vladimir D

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

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