Music and MIDI with Java and Kotlin (#54)

Foojay.io, the Friends Of OpenJDK!

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Obscurities

1
The Lead Masks Mystery: Death on Vintém Hill 5:58

24 gün önce5:58

Daha Sonra Çal

Listeler

Beğen

Beğenildi

5:58

In 1966, two Brazilian men were found dead on Vintém Hill under bizarre circumstances that continue to perplex investigators and conspiracy theorists alike. Lying side by side, their bodies were discovered wearing matching lead masks—shields with no eyeholes—alongside cryptic notes. Were they victims of a cult ritual, a failed experiment, or something even more otherworldly? See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .…

1 yıl önce 51:51

MP3•Bölüm sayfası

Guests

Atsushi Eno

Geert Bevin

Content

00:00 Introduction of the topic and guests
04:27 What is MIDI?
Learn more about MIDI and the javax.sound implementation in OpenJDK:
https://docs.oracle.com/javase/tutorial/sound/overview-MIDI.html
https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/sound/midi/package-summary.html
https://github.com/openjdk/jdk/tree/master/src/java.desktop/share/classes/javax/sound/midi
https://www.baeldung.com/java-packages-vs-javax
09:53 MIDI Polyphonic Expression (MPE)
https://roli.com/mpe
https://midi.org/midi-polyphonic-expression-mpe-specification-adopted
https://midi.org/insights
11:23 Instruments require real-time systems
15:18 Why Atsushi used Kotlin for ktmidi
https://github.com/atsushieno/ktmidi
https://github.com/jazz-soft/JZZ
https://github.com/thestk/rtmidi
Applications created with ktmidi: https://github.com/atsushieno/ktmidi/discussions/14
https://play.google.com/store/apps/details?id=org.androidaudioplugin.resident_midi_keyboard&pli=1
23:31 Using ktmidi with JavaFX and the benefits of Kotlin
https://melodymatrix.rocks
25:00 Geert sticks to Java and loves the 6-month releases
27:24 Apps created by Geert for various Apple devices
https://uwyn.com/midiwrist-unleashed
31:11 Atsushi uses MIDI to develop audio plugins
32:34 About Geert found back his love for Java and created Rife2 and BLD
https://rife2.com
https://rife2.com/bld
https://software.moogmusic.com/store
Erik Thauvin https://www.linkedin.com/in/ethauvin/
43:13 How things just happen and finding a good open-source approach
https://codewithrockstar.com
https://webtechie.be/post/2024-06-18-jfxinaction-christopher-schnick
https://www.jdeploy.com
50:46 Conclusions

71 bölüm

#Tech #Foojay.io #Java #Software #Technology #Javafx #Javaee #Kotlin #Security #Microservices #Higher Education #Podcasting Education #News #Tech News #Springs #DevOps

Foojay.io, the Friends Of OpenJDK!

Music and MIDI with Java and Kotlin (#54)

Foojay.io, the Friends Of OpenJDK!

published 1 yıl önce

Paylaş

MP3•Bölüm sayfası

Guests

Atsushi Eno

Geert Bevin

Content

71 bölüm

#Tech #Foojay.io #Java #Software #Technology #Javafx #Javaee #Kotlin #Security #Microservices #Higher Education #Podcasting Education #News #Tech News #Springs #DevOps

Усі епізоди

Foojay.io, the Friends Of OpenJDK!

1
Welcome to OpenJDK (Java) 24 (#68) 54:53

24 gün önce54:53

54:53

We serve you a podcast about the new Java version every six months. Our regular guest, Simon Ritter, Deputy CTO of Azul, is known on social media as "speakjava." He is part of the OpenJDK vulnerability group, JCP executive committee, and expert group for the Java SE specification request so that he can share a lot of inside information with us. In this episode, we are joined by Hanno Embregts, a Java Developer by day and musician by night. He publishes a post on Foojay with all the details of every new Java release and prepared a long description of all the new features included in Java 24. Let's see what this new release brings us... Guests Simon Ritter https://www.linkedin.com/in/siritter/ https://bsky.app/profile/speakjava.bsky.social Hanno Embregts https://www.linkedin.com/in/hannotify/ https://bsky.app/profile/hanno.codes Content 00:00 Introduction of the topic and guests 00:58 Why 24 JEPs in release 24? 02:16 Overview of the changes in Java 24 03:37 The changes in Hotspot and GC JEP 404: Generational Shenandoah (Experimental) https://openjdk.org/jeps/404 JEP 450: Compact Object Headers (Experimental) https://openjdk.org/jeps/450 JEP 475: Late Barrier Expansion for G1 https://openjdk.org/jeps/475 04:46 JEP 483: Ahead-of-Time Class Loading & Linking https://openjdk.org/jeps/483 07:30 JEP 491: Synchronize Virtual Threads without Pinning https://openjdk.org/jeps/491 10:27 Security JEPs and Quantum resistance JEP 478: Key Derivation Function API (Preview) https://openjdk.org/jeps/478 JEP 496: Quantum-Resistant Module-Lattice-Based Key Encapsulation Mechanism https://openjdk.org/jeps/496 JEP 497: Quantum-Resistant Module-Lattice-Based Digital Signature Algorithm https://openjdk.org/jeps/497 13:00 Tools JEP 493: Linking Run-Time Images without JMODs https://openjdk.org/jeps/493 16:47 Repreviews and finalizations JEP 489: Vector API (Ninth Incubator) https://openjdk.org/jeps/489 18:27 JEP 484: Class-File API https://openjdk.org/jeps/484 19:13 JEP 485: Stream Gatherers https://openjdk.org/jeps/485 21:22 JEP 487: Scoped Values (Fourth Preview) https://openjdk.org/jeps/487 22:15 JEP 488: Primitive Types in Patterns, instanceof, and switch (Second Preview) https://openjdk.org/jeps/488 22:30 How JEPs get finalized and included 23:44 JEP 492: Flexible Constructor Bodies (Third Preview) https://openjdk.org/jeps/492 24:09 JEP 494: Module Import Declarations (Second Preview) https://openjdk.org/jeps/494 25:07 JEP 495: Simple Source Files and Instance Main Methods (Fourth Preview) https://openjdk.org/jeps/495 29:24 JEP 499: Structured Concurrency (Fourth Preview) https://openjdk.org/jeps/499 34:04 Deprecations & Restrictions 34:46 JEP 472: Prepare to Restrict the Use of JNI https://openjdk.org/jeps/472 37:15 JEP 486: Permanently Disable the Security Manager https://openjdk.org/jeps/486 38:53 JEP 490: ZGC: Remove the Non-Generational Mode https://openjdk.org/jeps/490 Trash Talk - Exploring the JVM memory management by Gerrit Grunwald https://www.youtube.com/watch?v=Jh79ojcror0 42:09 JEP 498: Warn upon Use of Memory-Access Methods in sun.misc.Unsafe https://openjdk.org/jeps/498 45:43 Removal of 32-bit support JEP 479: Remove the Windows 32-bit x86 Port https://openjdk.org/jeps/479 JEP 501: Deprecate the 32-bit x86 Port for Removal https://openjdk.org/jeps/501 47:37 Should we use Java 24 in production? 51:09 Looking forward to the next LTS in September 54:14 Conclusion…

Foojay.io, the Friends Of OpenJDK!

1
Writing a book. Does it make you rich and famous? (#67) 1:15:28

6 weeks önce1:15:28

1:15:28

Let me share a personal story. I started experimenting with Java on a Raspberry Pi about five years ago and blogged a few articles about it. But the more I experimented, the more I wrote down, and eventually, I had written a book… I worked on it for six months in a row, every evening and a lot of weekends. But the moment I received the box with my author copies was an incredible feeling. Holding a paper book with your name is a special moment. Fast forward to now. The 1000 paper copies are sold out. I have the last 10 copies in case you still want one ;-) But as I self-published the ebook, it's still for sale on Leanpub, and I keep updating it. That's one of the first significant differences between publishing a paper book and an ebook…. As an author, I got about 2 euros per paper book from the publisher, and LeanPub pays 80% royalties. Don't forget that I have to pay taxes on what I earn. So, if you do the math, you'll understand that the book didn't make me rich. But yes, it helped me in my career and was one of the reasons I became a Java Champion. So, we can argue about the "becoming famous". But that's only my story. I invited several guests to share their knowledge about book writing: Marián Varga is finishing a book and tells about publishing a book with a publisher. Wim Deblauwe wrote a few books and has much experience with self-publishing. Len Epp is the co-founder of Leanpub, so he can tell us a lot about ebooks. And we start with Trisha Gee, who wrote a lot of books! Guests Trisha Gee https://www.linkedin.com/in/trishagee/ https://jvm.social/@trisha_gee https://bsky.app/profile/trishagee.bsky.social https://x.com/trisha_gee Len Epp https://www.linkedin.com/in/lenepp/ https://bsky.app/profile/lenepp.bsky.social https://x.com/lenepp Wim Deblauwe https://www.linkedin.com/in/wimdeblauwe/ https://bsky.app/profile/wimdeblauwe.com https://www.youtube.com/@WimDeblauwe https://www.wimdeblauwe.com/ https://www.widit.be/ Marián Varga https://www.dastalvi.com/book/ https://www.linkedin.com/in/mari%C3%A1n-varga-4869a042/ https://mastodon.social/@mrvarga Links Book by Frank https://webtechie.be/books/ https://leanpub.com/gettingstartedwithjavaontheraspberrypi/ Books and links by Trisha Gee https://trishagee.com/books/ https://trishagee.com/2022/12/12/tools-and-processes-for-collaborating-on-a-book-remotely/ https://trishagee.com/2022/12/01/writing-a-book-is-hard/ https://medium.com/97-things https://youtu.be/RzaNJzz5jW8 https://learning.oreilly.com/search/?q=trisha%20gee&rows=100&language=en&language=es Books by Wim Deblauwe https://www.infoq.com/minibooks/spring-boot-api-backend-version2/ https://www.wimdeblauwe.com/books/modern-frontends-with-htmx https://www.wimdeblauwe.com/books/taming-thymeleaf/ Book by Marián Varga https://www.dastalvi.com/book/ https://bsky.app/profile/love2integrate.com Leanpub https://www.youtube.com/leanpub https://twitter.com/leanpub https://mastodon.social/@leanpub https://www.instagram.com/leanpub https://bsky.app/profile/leanpub.bsky.social Lulu https://www.lulu.com/ Content 00:00 Introduction of the topic and guests 01:53 Books by Trisha Gee 02:24 Trisha's motivation for writing books 04:13 Difference between publisher and self-publishing 09:53 Publishers are looking for authors and course creators 12:55 How long do you work on a book? 17:35 Can we expect a new book by Trisha? 21:00 Automating the writing process 24:50 Len Epp about Leanpub and how it started 27:18 On Leanpub, you can publish a book-in-progress 27:51 Different publishing processes with Leanpub 30:20 You can use LeanPub to generate your book, but you don't need to sell it on Leanpub 32:57 80% of the selling price goes to the author 40:09 How to market your book 45:35 Let an expert handle the payments... 50:55 Books by Wim Deblauwe 51:45 Wim's motivation for writing books 53:15 Earning back the time spent on the writing 54:37 How to sell paper books on Lulu 57:19 Tools used to write a book 58:34 Wim's author-plans for the future 59:42 How the books influenced Wim's career 01:00:02 Marián Varga about the topic of his book 01:03:07 Current status of the book 01:04:03 The book is a teamwork with a publisher 01:07:06 Organizing the work between multiple authors 01:09:17 Time worked on the book 01:10:40 Feedback from the community for the content 01:12:13 What Marián wants to achieve with the book 01:14:38 Conclusion…

Foojay.io, the Friends Of OpenJDK!

1
Let's Talk About Java Code! Diving into Foojay blog posts... (#66) 54:59

8 weeks önce54:59

54:59

In this Foojay podcast, we dive into a few articles that were published recently and focus on code. Igor Kulakov of JetBrains gives us his insights into the tool he created to find duplicate content in documentation. Rijo Sam explains how you can generate real random values and how he created a train departure display. Maxillian Arruda explains in a very detailed post the different ways to construct a complex Java object. And we start with Wim De Troye about the code changes he had to do in a project that got upgraded from Spring Boot 2 to 3. Guests Wim De Troyer https://www.linkedin.com/in/wim-de-troyer-40647b130/ Maximillian Arruda https://www.linkedin.com/in/maxarruda/ Rijo Sam https://www.linkedin.com/in/rijosam19/ Igor Kulakov https://www.linkedin.com/in/inspector-patronum/ https://x.com/flounder4130 Links https://foojay.io/today/the-proper-way-to-define-configuration-properties-in-spring/ https://foojay.io/today/make-the-life-of-your-developer-clients-easier-with-smart-builders/ https://foojay.io/today/pseudorandom-number-generator/ https://foojay.io/today/crafting-your-own-railway-display-with-java/ https://foojay.io/today/duplicate-finder-for-text-requirements/ Content 00:00 Introduction of the topics and guests 00:55 Wim De Troyer 03:27 Pro or contra Lombok? 06:09 BeanValidation as part of the solution 07:40 Generating a config JSON file 08:50 Maxillian Arruda 09:19 What is a complex object? 12:09 Using records to simplify object creation 14:48 Telescoping constructors 16:08 Static factory method 19:09 Builder pattern 21:00 The risks of rewriting a project 23:00 Thread safety in object creation 27:53 Rijo Sam 29:07 java.util.Random is not fully random... 30:20 About SecureRandom, seeds, and blocking algorithms 34:16 Vaadin railway display 37:43 Getting railway data from an open API 38:44 It's a PET project together with Rijo's partner Ancy 40:22 Runs on a Raspberry Pi 41:18 The next project... 41:34 Igor Kulakov 43:02 DRY principle in documentation 43:37 How the tool works an integration in JetBrains products 44:54 Test-first approach in the project 47:10 Not using AI (yet) to avoid extra cost, local systems could be integrated 48:22 Input data the tool can handle 49:14 Highlights of the blog (and following) post(s) 54:35 Outro…

Foojay.io, the Friends Of OpenJDK!

1
Boost Your Career in 2025! (#65) 1:02:44

11 weeks önce1:02:44

1:02:44

With the first Foojay podcast of 2025, we want to help you to boost your career! By now, you've likely had your year-end performance review with your manager and set some goals to advance in the coming year. Are you ready to take your career growth into your own hands? I've invited three fantastic guests who are eager to share their experiences and help you elevate your professional journey. Guests Rafael Del Nero https://www.linkedin.com/in/rafadelnero/ https://www.youtube.com/c/javachallengers https://javachallengers.com Bruno Souza https://www.linkedin.com/in/brjavaman/ https://java.mn Career project/blog: https://code4.life/blog Book: https://careermasterplan.dev Join the newsletter, with daily career tips: https://code4.life Elder Moraes https://www.linkedin.com/in/eldermoraes/ https://www.youtube.com/ElderMoraes https://instagram.com/eldermoraes SouJava (JUG Brazil) https://www.meetup.com/SouJava/ http://soujava.org.br/ Content 00:00 Introduction of topic and guests 01:44 Why are the guests mentors for others? 06:25 There are many important skills you need to develop 07:38 How are they handling the mentoring process? 15:58 A mentor needs a mentor himself 16:43 Different growing paths, technical versus managing 21:59 How participating in JUGs can evolve your career 30:50 The impact of being a Java Champion 33:33 What is the value of mentoring? 41:18 How to get a salary increase? 50:18 Just ask for any change you want! 59:44 Book Bruno 01:01:16 Outro…

Foojay.io, the Friends Of OpenJDK!

1
Interviews at JFall about opensource, OpenJDK evolutions, Project Loom, JVM,... (#64) 33:01

15 weeks önce33:01

33:01

Let's wrap up this year with more interviews from the JFall conference. In this episode you'll learn more about Foojay, JVM internals and writing your own programming language, Project Loom and structured concurrency, learning at conferences, code reviews, creating desktop applications with Java, infrastructure as code, JUG Noord, and much more! Guests Geertjan Wielenga https://www.linkedin.com/in/geertjanwielenga/ Nataliia Dziubenko https://www.linkedin.com/in/nataliia-dziubenko-341919b8/ Hanno Embregts https://www.linkedin.com/in/hannotify/ Hinse ter Schuur https://www.linkedin.com/in/hinseterschuur/ Anthony Goubard https://www.linkedin.com/in/anthonygoubard/ Steffan Norberhuis https://www.linkedin.com/in/steffannorberhuis/ Paulien van Alst https://www.linkedin.com/in/paulienvanalst/ Lutske de Leeuw https://www.linkedin.com/in/lutske/ Johan Hutting Content 00:00 Introduction of topics and guests 01:09 Geertjan Wielenga: OpenJDK evolutions 01:47 The goal of Foojay, the website for the Friends Of OpenJDK https://foojay.io/ 03:49 Nataliia Dziubenko: What you can learn at conferences 04:48 Writing your own programming language on top of JVM 07:30 What it learned her about the Java compiler 08:38 How it influenced her career as a Java developer 11:20 Hanno Embregts: Project Loom, structured concurrency and scoped values 14:04 Playing music during conference talks 15:09 Important OpenJDK evolutions 17:07 Hinse ter Schuur: Learning at conferences 17:58 Best practices for code reviews 20:03 Anthony Goubard: Creating desktop apps with Java https://www.japplis.com 22:45 Steffan Norberhuis: Infrastructure code for AWS https://www.rocketleap.dev/ 23:50 Java as a Cloud language 24:54 How developers look at infrastructure 26:03 Is getting locked into a single cloud vendor a risk? 28:03 Paulien van Alst, Lutske de Leeuw en Johan Hutting: Introducing JUG Noord https://www.meetup.com/jug-noord 29:20 Introducing VoxxedDays Amsterdam https://amsterdam.voxxeddays.com/ 29:40 NLJUG versus local JUGs 30:06 Starting as a new speaker at JUGs 30:24 How to contribute to opensource 31:24 How to speak at JUG Noord 31:53 Learned at JFall 32:38 Outro…

Foojay.io, the Friends Of OpenJDK!

1
How do we keep our Java applications up to date and secure (#63) 43:12

16 weeks önce43:12

43:12

Last month, I published a Foojay blog post about the risks in systems that are stuck on old or outdated Java versions and got a lot of feedback from developers. Most of them want to move on but get stuck on management decisions, outdated production environments, or one of the many other reasons that keep systems stuck on old Java versions and dependencies... Do you want to bring your system from Java 8 to 23? Did you know that Java 17 already got 13 security releases? And that you can use tools like OpenRewrite to help you update your code? Related Foojay articles Why Java 8 is a Ticking Time Bomb Hiding Within Your Organization https://foojay.io/today/why-java-8-is-a-ticking-time-bomb-hiding-within-your-organization/ How Organizations Became Stuck on Outdated Java Versions https://foojay.io/today/how-organizations-became-stuck-on-outdated-java-versions/ Guests Gerrit Grunwald https://www.linkedin.com/in/gerritgrunwald/ Jonathan Schneider https://www.linkedin.com/in/jonkschneider/ Martijn Dashorst https://www.linkedin.com/in/dashorst/ Carl Wanting https://www.linkedin.com/in/carl-wanting-638943/ Charl Fasching https://www.linkedin.com/in/charl-fasching-77843288/ Johan Janssen https://www.linkedin.com/in/johanjanssen2001/ Content 00:00 Introduction of the topic and guests 01:35 Gerrit Grunwald about CVE fixes in Java updates 04:58 LTS (Long Term Support) versus STS (Short Term Support) 9:45 Jonathan Schneider about the goal of OpenRewrite 12:15 Upgrade all at once, or step by step? 14:03 Who creates the recipes? 15:08 What Moderne is offering on top of OpenRewrite 17:29 How to use OpenRewrite in your IDE 18:32 Companies maintaining recipies for their products 20:05 Jonathan's view on the importance of upgrades 26:56 Other use cases for OpenRewrite 29:03 Martijn Dashorst: Updating legacy projects 33:12 Carl Wanting and Charl Fasching: Migrating projects 39:43 Johan Janssen: Java evolutions and upgrading 42:51 Outro…

Foojay.io, the Friends Of OpenJDK!

1
Better Coding with AI: Friend or Enemy? (#62) 43:46

18 weeks önce43:46

43:46

AI, LLMs, ChatGPT—these are just a few of the buzzwords of the massive revolution unfolding right now. These tools are reshaping how we work, but they come with a catch: while they help us work faster and smarter, we need to be careful about placing too much trust in them. I’ve spoken with several guests at the JFall conference in the Netherlands actively working with these tools to learn more about them. And I had a chat with Grace Jansen about a recent Foojay blog post Guests Grace Jansen https://www.linkedin.com/in/grace-jansen/ Sean Li https://www.linkedin.com/in/sean-li-568a8414/ John Sterken https://www.linkedin.com/in/jsterken/ David Vlijmincx https://www.linkedin.com/in/david-vlijmincx/ Urs Peter https://www.linkedin.com/in/urs-peter-70a2882/ Joost Kaan https://www.linkedin.com/in/joost-kaan/ Links https://foojay.io/today/run-ai-enabled-jakarta-ee-and-microprofile-applications-with-langchain4j-and-open-liberty/ https://marketplace.visualstudio.com/items?itemName=IBM.wca-eja https://docs.langchain4j.dev/integrations/language-models/ https://foojay.io/today/building-project-panamas-jextract-tool-by-yourself/ https://foojay.io/today/project-panama-for-newbies-part-1/ https://foojay.io/today/writing-c-code-in-java/ Content 00:00 Introduction of topics and guests 01:07 Introduction of Grace and the Foojay blog post 02:31 What is Langchain4J? 03:23 What is JakartaEE? 04:25 What is MicroProfile? 06:33 Compare these tools with Spring 08:30 About the demo application of the blog post 11:32 What is an LLM, and what can it do? 13:41 Short-term evolutions in AI 16:49 Long-term predictions... 18:36 IBM Watson code assistant for VSC 19:45 Sean Li: Java at Microsoft 21:56 AI products provided by Microsoft 25:09 Code upgrades with a VSC extension 26:44 John Sterken: AI as a coding assistant 30:50 David Vlijmincx: Project Panama in relation to AI 34:53 Urs Peter: Generative AI, LLMs, and LangChain4J 40:20 Joost Kaan: Organizing an AI conference…

Foojay.io, the Friends Of OpenJDK!

1
As a developer, how do we keep our body and mind healthy? (#61) 38:04

20 weeks önce38:04

38:04

Foojay Podcast published in November 2024 All info, show notes, and links: https://foojay.io/today/category/podcast/ At Devoxx and JFall, we talked with Georgios Diamantopoulos, Lutske de Leeuw, Tom Cools, Jessica Siewert, and Rijo Sam about staying physically and mentally healthy as software developers. There are many topics to handle, like the impact of AI on how valuable we feel, how COVID-19 impacted careers, how we work in and with remote teams, how to get to know new colleagues and much more. Yes, there is even a sidestep where we compared the Java and .NET communities. Guests Georgios Diamantopoulos https://www.linkedin.com/in/georgiosd/ https://x.com/georgiosd Tom Cools https://www.linkedin.com/in/tom-cools-17547548/ https://bsky.app/profile/tcoolsit.bsky.social Lutske de Leeuw https://www.linkedin.com/in/lutske/ Jessica Siewert https://www.linkedin.com/in/jesiewert/ Rijo Sam https://www.linkedin.com/in/rijosam19/ https://github.com/Rijosam Content 00:00 Introduction of topic and guests 00:48 Georgios Diamantopoulos about the impact of your work on your body 05:22 Comparing Java to .NET community 06:54 Lutske de Leeuw about the impact of AI on our job 09:13 Impact of Covid and working from home 10:48 Talk with your colleagues about mental issues 12:06 Tom Cools about switching jobs 13:00 About the danger of a burnout, dealing with stress, and trying too much at the same time 17:08 How to deal with Impostor Syndrom 20:31 Jessica Siewert about dealing with conflicts within a team 22:50 How to get in contact with new people 24:58 Rijo Sam about working in and with remote teams 26:34 Schedule "coffee moments"! 30:54 Impact of time zone differences 33:02 Misunderstanding each other because of cultural differences 34:44 The danger of text chat versus having a voice chat 37:04 Avoid team burnout! 37:43 Conclusion…

Foojay.io, the Friends Of OpenJDK!

1
Proud Of Belgium: Devoxx, JobRunr, Timefold, OpenJDK Mobile, OpenJFX, Thymeleaf, htmx (#60) 35:38

22 weeks önce35:38

35:38

Belgium might be tiny, but we have a strong Java Community! As I was doing interviews at Devoxx in October, I met several of these people, and we talked about their projects, how you can get involved in OpenJDK, and maybe even start a company out of it. This podcast will teach you more about Devoxx, VoxxedDays, Devoxx4Kids, JobRunr, Timefold, OpenJDK Mobile, OpenJFX, Thymelead, htmx, and more! Guests Stephan Janssen https://www.linkedin.com/in/stephanjanssen/ https://x.com/Stephan007 https://www.devoxx.com https://events.voxxeddays.com https://www.devoxx4kids.org/ Ronald Dehuysser https://www.linkedin.com/in/ronalddehuysser/ https://x.com/rdehuyss https://www.jobrunr.io/en/ Geoffrey De Smet https://www.linkedin.com/in/ge0ffrey/ https://x.com/GeoffreyDeSmet https://timefold.ai/ Johan Vos https://www.linkedin.com/in/johanvos/ https://mastodon.social/@johanvos https://x.com/johanvos https://gluonhq.com/ https://github.com/openjdk/mobile https://github.com/openjdk/jfx/ Wim Deblauwe https://www.linkedin.com/in/wimdeblauwe/ https://x.com/wimdeblauwe https://www.wimdeblauwe.com/books/modern-frontends-with-htmx/ https://www.wimdeblauwe.com/books/taming-thymeleaf/ https://www.wimdeblauwe.com/projects/ Content 00:00 Introduction 00:47 Stephan Janssen about how Devoxx started 02:22 Difference between Devoxx and VoxxedDays 03:47 About Devoxx4Kids 04:22 Sponsors are needed to keep the entrance fee low 06:26 About the speakers and CFPs 07:11 Important Belgian Java people and tools 09:08 Ronald Dehuysser about JobRunr 10:00 How to turn an open-source project into a company 11:09 Reviewing and validating the evolutions in Java 12:35 Importance of conferences 13:23 How government support can help a startup 14:02 Challenge of starting a company... 14:40 Geoffrey De Smet about Timefold and the challenges in scheduling 16:47 How AI helps to find the best schedule 18:34 How it started as an open-source project (Optoplanner) 19:06 The challenges of growing Timefold as a company 21:26 Visiting conferences as a "yearly training" 22:36 Johan Vos about OpenJFX and how he got involved 24:49 Everyone can contribute to OpenJDK and OpenJFX 25:50 The goal of the OpenJDK Mobile project 29:33 About the Belgian Java community 30:29 Wim Deblauwe about Spring libraries and books 30:50 About Wim's Thymeleaf and htmx books 32:08 How to get involved in the Java community 33:06 Goal of writing a book 33:40 Wim's involvement in the community 35:08 Outro…

Foojay.io, the Friends Of OpenJDK!

1
DevRel Explained and How to Become a Conference Speaker 48:53

24 weeks önce48:53

48:53

What do people who have Developer Relations as their job description do? And how do you become a conference speaker? You'll learn in this Foojay podcast! At Devoxx in Belgium, I got to talk to Josh Long, Baruch, Pratik Patel, and Roni Dover, who are on the stage because it's part of their job. They share many tips about being a DevRel and the plenty tasks involved in such a job. I also talked with Clo Willaerts who was my inspiration many years ago to become a speaker myself, when I saw her presentation at a marketing conference. Guests Clo Willaerts https://www.linkedin.com/in/clowillaerts/ https://x.com/bnox https://clowillaerts.com/ https://clowillaerts.substack.com/ Josh Long https://x.com/starbuxman https://www.linkedin.com/in/joshlong/ Baruch Sadogursky https://www.linkedin.com/in/jbaruch/ https://x.com/jbaruch Pratik Patel https://www.linkedin.com/in/prpatel/ https://x.com/prpatel Roni Dover https://www.linkedin.com/in/ronidover/ https://x.com/doppleware Content 00:57 Clo about the difference between marketing and technical conferences 02:49 Impact of ecological cost on our work 04:56 Fast changes in trending topics 07:33 How to get paid as a (keynote) speaker 12:53 Josh about being Developer Relation 14:53 How to reach the energy level of Josh 15:42 Do you have to be an expert about a topic to talk about it? 18:34 How to create a story for a new talk 19:02 Only use slides when really needed 22:29 How hard is live coding? 23:48 Baruch about the DevRel role 24:52 How to move from Dev to DevRel 25:44 The focus of Baruch 27:57 Pratik about the role of a dev team at a conference 29:50 How DevRel influences product development in their company 31:36 How Pratik became a DevRel 32:40 Good and bad of being a DevRel 34:38 Roni about the role of a DevRel 35:54 Importance of using your product (coding) as a DevRel 37:35 Back side of the job 38:43 Tip 1: Ask to be a speaker 39:31 Tip 2: Stand out! 41:01 Tip 3: The show must go on! 42:31 More tips... 48:08 One final tip from Josh 48:16 Outro Book by Geertjan Wielenga: "Developer, Advocate!"…

Foojay.io, the Friends Of OpenJDK!

1
How Java Developers Can Secure Their Code (#58) 55:06

27 weeks önce55:06

55:06

Three years after Log4Shell caused a significant security issue, we still struggle with insecure dependencies and injection problems. In this podcast, we'll discuss how developers can secure their code. I talked with three authors who posted a security and code quality post on Foojay.io. Guests Jonathan Vila https://www.linkedin.com/in/jonathanvila/ https://about.me/jonathan.vila https://twitter.com/jonathan_vila Brian Vermeer https://www.linkedin.com/in/brianvermeer/ https://brianvermeer.nl/ https://twitter.com/BrianVerm Erik Costlow https://www.linkedin.com/in/costlow/ https://twitter.com/costlow Content 00:00 Introduction of topic and guests 01:35 Brian: Why is Log4Shell still around? https://foojay.io/today/the-persistent-threat-why-major-vulnerabilities-like-log4shell-and-spring4shell-remain-significant/ 03:24 Outdated dependencies are still used a lot 04:31 Who is responsible for dependency updates? 07:55 Snyk tools to help discover issues 10:15 Comparing to Dependabot 11:21 How to keep dependencies up-to-date 14:32 Responsibility to use dependencies with care 17:17 Looking forward to the JFall conference 18:48 About Foojay 19:49 Jonathan: Is SQL injection still a problem? https://foojay.io/today/top-security-flaws-hiding-in-your-code-right-now-and-how-to-fix-them/ 24:50 Deserialization injection 27:30 Logging injection 31:22 Even experienced developers make mistakes 33:17 About Sonar tools 35:53 Other articles by Jonathan https://foojay.io/today/author/jonathan-vila/ https://foojay.io/today/ensuring-the-right-usage-of-java-21-new-features/ 38:20 Other security tools https://www.youtube.com/watch?v=-wVCYj8oQUY 39:47 Erik: Trash Pandas are attracted by unused code https://foojay.io/today/trash-pandas-love-enterprise-java-garbage-code/ 43:01 How bad are insecure but unused libraries? 45:16 Problem of code only used by unit tests 47:15 Testing in different layers (develop, test, production) 49:31 How much code is not used in production? 50:31 How code becomes unused https://foojay.io/today/foojay-podcast-57/ 54:29 Conclusions…

Foojay.io, the Friends Of OpenJDK!

1
Welcome to OpenJDK (Java) 23 (#57) 1:07:29

29 weeks önce1:07:29

1:07:29

OpenJDK (Java) 23 is here! This version introduces three new features to the language and runtime, many bug fixes, small improvements, and a longer list of preview features. What are the most important facts about this release? Let's find out... Guests Simon Ritter https://www.linkedin.com/in/siritter/ https://mastodon.social/@speakjava https://twitter.com/speakjava Artur Skowroński https://www.linkedin.com/in/arturskowronski/ https://x.com/ArturSkowronski Content 00:00 Introduction 00:49 What OpenJDK version are we on? Foojay post by Loic Mathieu: https://foojay.io/today/java-23-whats-new/ 01:26 Why switch to OpenJDK 23? 02:45 JEP 467: Markdown Documentation Comments https://openjdk.org/jeps/467 04:15 JEP 474: ZGC: Generational Mode by Default https://openjdk.org/jeps/474 https://www.azul.com/blog/what-should-i-know-about-garbage-collection-as-a-java-developer/ https://newrelic.com/resources/report/2024-state-of-the-java-ecosystem 14:17 JEP 471: Deprecate the Memory-Access Methods in sun.misc.Unsafe for Removal https://openjdk.org/jeps/471 Foojay post by Bazlur Rahman: https://foojay.io/today/unsafe-is-finally-going-away-embracing-safer-memory-access-with-jep-471/ 22:04 Preview and incubator features 22:31 JEP 466: Class-File API (Second Preview) https://openjdk.org/jeps/466 25:48 JEP 455: Primitive Types in Patterns, instanceof, and switch (Preview) https://openjdk.org/jeps/455 https://openjdk.org/projects/valhalla 30:52 JEPs leading to cleaner code https://openjdk.org/projects/amber 32:28 JEP 469: Vector API (Eighth Incubator) https://openjdk.org/jeps/469 35:28 JEP 473: Stream Gatherers (Second Preview) https://openjdk.org/jeps/473 38:07 JEP 476: Module Import Declarations (Preview) https://openjdk.org/jeps/476 Overview of projects with modules: https://docs.google.com/spreadsheets/u/2/d/e/2PACX-1vQbHhKXpM1_Vop5X4-WNjq_qkhFRIOp7poAF79T0PAjaQUgfuRFRjSOMvki3AeypL1pYR50Rxj1KzzK/pubhtml 43:03 JEP 477: Implicitly Declared Classes and Instance Main Methods (Third Preview) https://openjdk.org/jeps/477 45:40 JEP 480: Structured Concurrency (Third Preview) https://openjdk.org/jeps/480 46:26 JEP 481: Scoped Values (Third Preview) https://openjdk.org/jeps/481 46:40 JEP 482: Flexible Constructor Bodies (Second Preview) https://openjdk.org/jeps/482 48:56 Removal of String templates https://openjdk.org/jeps/430 (OpenJDK 21): String Templates (Preview) https://openjdk.org/jeps/459 (OpenJDK 22): String Templates (Second Preview) Nice description on the mailing list: https://mail.openjdk.org/pipermail/amber-spec-experts/2024-March/004010.html 53:21 Process of releases 55:25 Predictions for next LTS 25 57:48 License changes for Oracle JDK 17 58:38 About JVM Weekly by Artur (and Scala, AI, LLMs) JVM Weekly Newsletter: https://www.linkedin.com/newsletters/7097859802881540096/ https://webtechie.be/tags/jfx-in-action/ 1:06:18 Conclusions…

Foojay.io, the Friends Of OpenJDK!

1
Vectors in Java Code, Database, and LLMs (#56) 49:48

39 weeks önce49:48

49:48

In this Foojay podcast, we enter the world of mathematics by discussing Vectors and how they are crucial for AI and machine learning. As ChatGPT explains: "A Vector is a mathematical structure that holds numerical values. Vectors are fundamental to the field of Artificial Intelligence, as they allow mathematical operations to be performed efficiently and form the basis of many machine learning algorithms." OK, but how are these vectors crucial for the whole Artificial Intelligence evolution? This is the last podcast of season 3, we're taking a summer break and will be back in September with the release of Java 23 and much more OpenJDK-related topics! Guests Jonathan Ellis https://www.linkedin.com/in/jbellis/ https://x.com/spyced Alexander Chatzizacharias https://www.linkedin.com/in/alexander-chatzizacharias/ https://x.com/alex90_ch Content 00:00 Introduction of the topic and guests 01:57 What is a Vector? https://github.com/openai/tiktoken https://arxiv.org/abs/1301.3781 https://towardsdatascience.com/word2vec-research-paper-explained-205cb7eecc30 https://github.com/jbellis/jvector 07:14 Vectors explained as a game A fun and absurd introduction to Vector Databases: https://www.youtube.com/watch?v=mQGf9hWTqSw 09:44 Understanding tokenizers 10:40 Do we need dedicated Vector databases? 13:39 Vectors, LLMs and hallucinations Crafting your own RAG system: Leveraging 30+ LLMs for enhanced performance by Stephan Janssen: https://www.youtube.com/watch?v=9PX5l4ETn0g 20:40 How LLM and chat interfaces are used in companies https://www.bbc.com/travel/article/20240222-air-canada-chatbot-misinformation-what-travellers-should-know 23:45 Indexing all of Wikipedia https://foojay.io/today/indexing-all-of-wikipedia-on-a-laptop/ Demo application: https://jvectordemo.com:8443/ https://openjdk.org/projects/panama/ 27:23 Evolutions in Java for vectors, LLMs, and AI Vector API (Eighth Incubator): https://openjdk.org/jeps/469 Foreign Function & Memory API: https://openjdk.org/jeps/454 32:44 Is the GPU needed for vector use cases? 35:04 Can we already use the incubator Vector API in production? 38:27 Some predictions... Colbert project: https://github.com/stanford-futuredata/ColBERT https://thenewstack.io/overcoming-the-limits-of-rag-with-colbert/ 44:19 Make your vectors smaller to make them more efficient and less expensive https://www.sciencedirect.com/topics/engineering/vector-quantization https://huggingface.co/blog/embedding-quantization https://foojay.io/today/visualizing-brain-computer-interface-data-using-javafx/ Asteroids 3D in JavaFX made from AI Deep Fake Audio data: https://www.youtube.com/watch?v=vFThM9BoTLg 49:19 Outro…

Foojay.io, the Friends Of OpenJDK!

1
Embedded Java, Part 2 (#55) 1:09:52

40 weeks önce1:09:52

1:09:52

As a backend developer, you may not realize that Java was initially born on embedded devices like set-top boxes and gateways. We discussed this topic for the first time almost three years ago in Foojay Podcast #2 with James Gosling, Johan Vos, Erik Costlow, and Frank Delporte (https://foojay.io/today/foojay-podcast-2/). In this episode #55, we look into the history of the Java Micro Edition and how things evolved. Nowadays, with processors becoming increasingly powerful, we can run the exact same Java runtime on any Linux system, from the biggest cloud servers to the smallest Raspberry Pi Zero. Let's find out what can be done with Java in the embedded world. Guests Robert von Burg https://www.linkedin.com/in/eitchme/ https://mstdn.gsi.li/@eitch DaShaun Carter https://www.linkedin.com/in/dashaun/ https://twitter.com/dashaun https://vmst.io/@dashaun Pavel Petroshenko https://www.linkedin.com/in/pavel-petroshenko-5220092/ Content 00:00 Introduction of the topic and guests 04:53 Java is running on more devices than we can imagine 06:18 History of Java ME https://www.oracle.com/java/technologies/javameoverview.html https://en.wikipedia.org/wiki/SavaJe Jasper S20: https://vimeo.com/198239375 Jasper S20: https://www.phonescoop.com/articles/article.php?a=77&p=1498 15:55 Java on modern embedded devices 22:25 Are modern embedded devices still "embedded"? 25:24 Current modern Java is perfect for embedded uses https://www.pi4j.com 30:10 How Java moved to ARM on Mac and cloud 34:48 Green Computing = Reducing costs Presentation by Miro Wengner: https://www.youtube.com/watch?v=zP4xeeY3HIA https://thenewstack.io/which-programming-languages-use-the-least-electricity/ 37:47 Recent Java evolutions impacting embedded use 41:51 Is there a need for real-time Java? LED strips with Java: https://www.pi4j.com/examples/jbang/pixelblaze_output_expander/ 49:44 Spring IO presentation by DaShaun https://2024.springio.net/sessions/spring-boot-on-the-edge 51:38 Java on RISC-V https://riscv.org/blog/2024/04/java-21-and-22-now-available-on-risc-v-a-collaboration-between-rise-and-eclipse-adoptium 53:27 More details about the product Robert develops with Java https://www.pi4j.com/featured-projects/soft-real-time-plc-written-in-strolch/ https://strolch.li/ 59:09 Network alternatives on embedded (e.g. LoRa) 1:03:42 What will the future bring to embedded Java? Pi4J Spring Boot: https://www.youtube.com/watch?v=I62IviQLNts https://openjdk.org/projects/leyden/ https://openjdk.org/projects/crac/ 1:09:07 Conclusion…

Foojay.io, the Friends Of OpenJDK!

1
Music and MIDI with Java and Kotlin (#54) 51:51

41 weeks önce51:51

51:51

MIDI is a universal standard for communicating between musical instruments and computers. Within OpenJDK, there is a whole Java package dedicated to MIDI communication and data handling. Is it up to date? Are there better approaches now? And what can we do with music, Java, and Kotlin? Let's find out... Guests Atsushi Eno https://atsushieno.github.io/ https://g0v.social/@atsushieno https://fedibird.com/@atsushieno Geert Bevin https://www.linkedin.com/in/gbevin/ https://gbevin.com/cv/ https://www.uwyn.com/ https://www.gbevin.com/ Content 00:00 Introduction of the topic and guests 04:27 What is MIDI? Learn more about MIDI and the javax.sound implementation in OpenJDK: https://docs.oracle.com/javase/tutorial/sound/overview-MIDI.html https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/sound/midi/package-summary.html https://github.com/openjdk/jdk/tree/master/src/java.desktop/share/classes/javax/sound/midi https://www.baeldung.com/java-packages-vs-javax 09:53 MIDI Polyphonic Expression (MPE) https://roli.com/mpe https://midi.org/midi-polyphonic-expression-mpe-specification-adopted https://midi.org/insights 11:23 Instruments require real-time systems 15:18 Why Atsushi used Kotlin for ktmidi https://github.com/atsushieno/ktmidi https://github.com/jazz-soft/JZZ https://github.com/thestk/rtmidi Applications created with ktmidi: https://github.com/atsushieno/ktmidi/discussions/14 https://play.google.com/store/apps/details?id=org.androidaudioplugin.resident_midi_keyboard&pli=1 23:31 Using ktmidi with JavaFX and the benefits of Kotlin https://melodymatrix.rocks 25:00 Geert sticks to Java and loves the 6-month releases 27:24 Apps created by Geert for various Apple devices https://uwyn.com/midiwrist-unleashed 31:11 Atsushi uses MIDI to develop audio plugins 32:34 About Geert found back his love for Java and created Rife2 and BLD https://rife2.com https://rife2.com/bld https://software.moogmusic.com/store Erik Thauvin https://www.linkedin.com/in/ethauvin/ 43:13 How things just happen and finding a good open-source approach https://codewithrockstar.com https://webtechie.be/post/2024-06-18-jfxinaction-christopher-schnick https://www.jdeploy.com 50:46 Conclusions…

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