Nicolai Parlog

@nipafx
1.7K Followers
135 Following
617 Posts
#Java enthusiast focused on language features, core APIs, and runtime evolution with a passion for learning and sharing - mostly at conferences and in his biweekly Inside Java Newscast. He's a Java Developer Advocate at Oracle (views are his own) and otherwise best known for his haircut.
Websitehttps://nipafx.dev
GitHubhttps://github.com/nipafx/
YouTubehttps://youtube.com/nipafx
Twitchhttps://www.twitch.tv/nipafx
Nicolai ParlogApr 1

Java stream's terminal operations `findFirst` and `findAny` are neat but one use cases isn't covered: "find the only one" - a terminal operation you'd use after a filter that's supposed to let exaxctly one element pass through.

There's now a JDK preview with that operation, named `highlander`. ⚔️

Nicolai ParlogMar 26

"Everybody wants code reviews until they get punched in the face."

- Mike Tyson (pretty much)

Nicolai ParlogMar 18
Just leaving this here... #JavaOne
Show threadNicolai ParlogMar 17
Until then, here's a little behind-the-scenes footage from the build-up. 🤩
Nicolai ParlogFeb 7

If you're using #Java​'s source-file launcher, you may eventually want to drop some dependencies into your little project. But how to get them without a build tool?

One answer is JPM - give it a shot, it's cool: https://github.com/codejive/java-jpm

Nicolai ParlogJan 29

The #Java YouTube channel just passed 200.000 subscribers. Woot! 🥳 Thank you, everybody, for watching, commenting, sharing, and just in general for being an active member of this awesome community. 🧡💙

https://www.youtube.com/java

Before you continue to YouTube

Nicolai ParlogJan 19
How should I know what I think without reading what I wrote?
Nicolai ParlogOct 4, 2024

The next time you accidentally call a Java release "an LTS version", remember:

* it happens to the best (in this case the authors of JEP 14)
* it's easy to fix

Friends don't let friends use misnomers.

Nicolai ParlogAug 5, 2024

OpenJDK is on a roll right now! Leyden just submitted its first JEP: "Ahead-of-Time Class Loading & Linking".

https://openjdk.org/jeps/483 #Java

JEP 483: Ahead-of-Time Class Loading & Linking

Nicolai ParlogAug 1, 2024

JVMLS takes place next week - be there or be... on YouTube: https://youtube.com/java

That's what I'll do and I can't wait to watch the talks with updates on Babylon, HAT, Valhalla, Lilliput, and so many more. #Java

Bevor Sie zu YouTube weitergehen

×
Nicolai ParlogMar 18
Just leaving this here... #JavaOne
Show threadJosh AustinMar 18

@nipafx so it ships next year, right? 😁

(Kidding, making a reference to your mention after the keynote)

Show threadJosh AustinMar 18
@nipafx in all seriousness though, this JavaOne ROCKS!!! 🤘
Show threadNicolai ParlogMar 18
@josh 😂
Show threadBoris TerzicMar 19
@nipafx When though?!
Show threadFranDayzMar 19
@nipafx genuine interest and I don't mean to troll. Are proper immutable collection framework and the val keyword being discussed among the Java architects?
Show threadNicolai ParlogMar 19

@FranDayz I'm sure they are being discussed but afaik the sentiment is that they won't be added for now.

When 'var' was introduced, the community didn't agree on 'val' vs 'final var' vs 'let' vs other options and because finality of local variables isn't that essential, the decision was made to not add an additional keyword. I don't think anything has changed in that regard.

I wrote an article outlining the issues with backfitting immutable collections: https://nipafx.dev/immutable-collections-in-java/

Immutable Collections In Java - Not Now, Not Ever

The JDK contains immutable collections, but no type ImmutableCollection. Here's why that's so and why it won't change.

nipafx // You. Me. Java.
Show threadFranDayzMar 19
@nipafx thank you so much for the answer and the article!
Show threadNicolai ParlogMar 19

@FranDayz And don't worry about trolling, I love to answer questions like this. You could even say, it's my job. 😉

Questions that annoy me and might get a more quippy answer usually start with "Why don't you just..." and end with "... like Scala/Kotlin/Go?". 😁

Show threadFranDayzMar 19
@nipafx thanks! And it's interesting that you mention Kotlin. It's been a language I used to convince people to work with in the past, but after the latest developments with Java, specially sealed classes, records, enhanced switch, I've been more like not seeing the point in adopting Kotlin anymore. Only thing that "kinda bothers me" is the lack of features like the ones I inquired in my initial post. But it's still exciting to see how Java evolves.
Show threadFranDayzMar 19
@nipafx ah and something like Kotlin s copy method!