Johan Vos | Lightnews

Johan Vos @johanvos.bsky.social · 3h

The impact of openjdk.org/jeps/510 is huge. Developers using OpenJDK now have many more tools/convenience to work with KDFs. They can more easily take major parts of security/encryption in their own hands, instead of relying on proprietary (cloud-vendor specific) implementations.
#openjdk #java

JEP 510: Key Derivation Function API

openjdk.org

Official account of jfxcentral.com @jfxcentral.com · 4d

Here is the new #JavaFX #LinksOfTheWeek, published on www.jfx-central.com/links.

Thanks to
Paul Krill
Bruce Haddon
@abaddongtz.bsky.social
@frankdelporte.be
@johanvos.bsky.social
@steveonjava.bsky.social
@devoxx.com
Troels Mortensen
@foojay.io

Happy reading, and have a lovely #Java weekend!

Wolfgang Weigend @wolfgangweigend.bsky.social · 6d

A great conversation with Adam Bien at the W-JAX 2025 in Munich about his existing blog posts aligned with LLMs to ask the system about his own achievements for current projects: „What would Adam Bien say?“ @adambien.blog @jaxkonferenz.bsky.social

Devoxx Belgium @devoxx.com · 7d

Part 6 : Java on Mobile - #JavaFX

At #Devoxx Belgium 2025, @frankdelporte.be took the camera and microphone to talk with several speakers and visitors. This time with @johanvos.bsky.social and Stephen Chin...

youtu.be/OrhGyTGJgOg

Java on Mobile - JavaFX

YouTube video by Devoxx

youtu.be

Johan Vos @johanvos.bsky.social · 13d

That doesn't apply to JavaFX. There are many devs, it's used in major corporate projects. But it's not a strategic component for any of the big companies working on openjfx/openjdk, so no devrel, no techvideos, no T&M sales/support... just tons of incoming mail for me.

Johan Vos @johanvos.bsky.social · 16d

Thanks! A main problem imho is the split of working on the OpenJFX code versus getting revenues. *Almost* all companies paying devs for working on openjfx do this with indirect revenues, e.g. support contracts. That forces the remaining companies/individuals to do their work for free.

Simon Martinelli @martinelli.ch · 17d

The reason for creating tests is not to achieve 80% code coverage, but to gain the assurance that the application will still work after a change.

Johan Vos @johanvos.bsky.social · 17d

Working on OpenJDK for Android: in 43 seconds, I run an app on my phone, make a change in OpenJDK (change dlllookup into dll_lookup), rebuild OpenJDK, link it with my app, push to my phone, run again.
OpenJDK development is extremely efficient.
#java #innovation #mobile #openjdk

Johan Vos @johanvos.bsky.social · 17d

The openjdk-mobile project (github.com/openjdk-mobile) provides daily OpenJDK builds for iOS, packaged as XCFrameworks. Recently, there was a failure because I had to update the bootjdk to 25. Apart from that, very smooth!
#java #innovation #openjdk

Johan Vos @johanvos.bsky.social · 22d

For example, I slightly doubt that Google/Facebook is showing all this crap that keeps people scrolling (aka "selling eyeballs") out of good intent.
The days where I thought Google didn't do evil are over.

Johan Vos @johanvos.bsky.social · 22d

That's a valid choice.
The consequence though is that I (unpaid for any OpenJFX work) get many angry mails/requests from people who tell me I should do all this work because they rely on it.
The model is completely broken and those who are making money from it aren't interested in fixing it.

Johan Vos @johanvos.bsky.social · 22d

I try to do that as much as possible, with people around me. Whether I like them or not.
But no, I don't do that anymore when it involves big tech shareholders and execs.

Johan Vos @johanvos.bsky.social · 22d

Great post, thanks for sharing. I agree empathy may help here, but tbh, I believe very often the problem is that some higher-level execs prefer their salary and job title over doing what really should be done.

Johan Vos @johanvos.bsky.social · 25d

I thought about this a bit longer. This is not how I believe it should be done. With Gluon, we added a Headless Platform to OpenJFX. There was no (paid!) broad demand for it, but we believe it was the right thing to do.
In my naive opinion, if you think something is needed, you just do it.

Johan Vos @johanvos.bsky.social · 29d

Totally agree with this one.

Lars Rosenquist @calvobianco.com · 29d

Folks saying: "With a coding assistant I can finally focus and design and specs. This makes me x more productive."

Serious question: How were they not doing that before? They just jumped into IDE without doing any design whatsoever? Whacking code together they gobbled from SO and hope for the best?

Tom Cools @tomcools.be · 29d

One of the coolest things about our @bejug.bsky.social community? Everyone can participate and help out. Check out this amazing banner @lomagnette.bsky.social made!

Lars Rosenquist @calvobianco.com · 29d

Folks saying: "With a coding assistant I can finally focus and design and specs. This makes me x more productive."

Serious question: How were they not doing that before? They just jumped into IDE without doing any design whatsoever? Whacking code together they gobbled from SO and hope for the best?

Anthony Dahanne @anthony.dahanne.net · 29d

What an amazing week! #devoxx Belgium 2025 did not disappoint! So much great content and friendly faces I've finally met IRL!
And wow, they already posted to Youtube all recordings!
You can check out my talk about #paketo #buildpacks youtu.be/RX9zwgHuNmA

Johan Vos @johanvos.bsky.social · Oct 11

Devoxx registration: what they promised versus what you got. (but hey, it was a great conference, really enjoyed talking to so many interesting folks!)

ai-generated image of how fancy registration could be

Official account of jfxcentral.com @jfxcentral.com · Oct 10

New #JavaFX #LinksOfTheWeek, published on www.jfx-central.com/links.

Thanks to
@johanvos.bsky.social
@trixon.se
@crschnick.bsky.social
@sunnykentz.bsky.social
@sreimers.bsky.social
Michael Hoffer
Florian Enner
Abid Maqbool
Haidar Ali
@dlemmermann.bsky.social

Have a lovely weekend!

Johan Vos @johanvos.bsky.social · Oct 6

Now at #devoxx: @sreimers.bsky.social talking about jtaccuino. #java #javafx

Johan Vos @johanvos.bsky.social · Oct 3

Next step is the integration of Leyden code into OpenJDK/mobile. Hope to get support from the Leyden experts. (2/2)
#java #javafx #openjdk

GitHub - openjdk-mobile/openjfx-build: Building OpenJFX using OpenJDK

Building OpenJFX using OpenJDK. Contribute to openjdk-mobile/openjfx-build development by creating an account on GitHub.

github.com

Johan Vos @johanvos.bsky.social · Oct 3

I can now run HelloFX on an iPhone. This required only really minor changes to OpenJFX and OpenJDK, and I'll update github.com/openjdk-mobi... as soon as I find some time. Most of the work (> 99%) went into understanding the tons of options in XCode.
(1/2)

GitHub - openjdk-mobile/openjfx-build: Building OpenJFX using OpenJDK

Building OpenJFX using OpenJDK. Contribute to openjdk-mobile/openjfx-build development by creating an account on GitHub.

github.com

Devoxx Belgium @devoxx.com · Oct 3

Safe travels to all Devoxxians heading to Antwerp!
See you soon at #Devoxx 🚆✈️🚗🚴🏼

Signal @signal.org · Oct 2

In 2023, Signal was the first mainstream messenger to enable post-quantum cryptography. We’re still ahead of the (elliptical) curve, implementing a new hybrid PQ ratchet ensuring Forward Secrecy & Post-Compromise Security even in a post-quantum world. signal.org/blog/spqr/

Signal Protocol and Post-Quantum Ratchets

We are excited to announce a significant advancement in the security of the Signal Protocol: the introduction of the Sparse Post Quantum Ratchet (SPQR). This new ratchet enhances the Signal Protocol’s...

signal.org

Devoxx Belgium @devoxx.com · Oct 1

The final #Devoxx Belgium 2025 newsletter is out! 🚀
First-time Devoxxians, this one’s especially for you, don’t miss it!
redirect.devoxx.be/nl3/w2QUJQCh...

Johan Vos @johanvos.bsky.social · Sep 30

Looking forward to #Devoxx Belgium next week. Excellent speakers/sessions, and great atmosphere.
I'm more than happy to do interviews about Java/JavaFX on Mobile and explain github.com/openjdk-mobile so ping me if interested. (also happy to chat about quantum computing, javafx, science, cycling...)

openjdk-mobile

openjdk-mobile has 3 repositories available. Follow their code on GitHub.

github.com

Johan Vos @johanvos.bsky.social · Sep 25

Progress in the OpenJDK-mobile story.
Repository created that has actions to build openjdk+openjfx from head of both upstream repos. github.com/openjdk-mobi...
I needed this for desktop, and it makes mobile easier.
Linux-build that runs HelloFX (without setting modulepath etc) is now working.

GitHub - openjdk-mobile/openjfx-build: Building OpenJFX using OpenJDK

Building OpenJFX using OpenJDK. Contribute to openjdk-mobile/openjfx-build development by creating an account on GitHub.

github.com

Johan Vos @johanvos.bsky.social · Sep 25

Not going to let this happen. #resist

Jeroen Baert @jbaert.bsky.social · Sep 25

Belgium wants something impossible for #chatcontrol: only look at the messages where it's needed, thus safeguarding E2EE somehow, by magic. WHICH MEANS LOOKING INTO ALL MESSAGES AND BREAKING E2EE.

Jeroen Baert @jbaert.bsky.social · Sep 25

Belgium wants something impossible for #chatcontrol: only look at the messages where it's needed, thus safeguarding E2EE somehow, by magic. WHICH MEANS LOOKING INTO ALL MESSAGES AND BREAKING E2EE.

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