Foojay.io | Friends of OpenJDK and Java Programming

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...

• https://atsushieno.github.io/
• https://g0v.social/@atsushieno
• https://fedibird.com/@atsushieno

• https://www.linkedin.com/in/gbevin/
• https://gbevin.com/cv/
• https://www.uwyn.com/
• https://www.gbevin.com/

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

This is the final part of the JCON interviews. Did I save the best for last? It's up to you to decide. In this episode, you'll hear Simon Martinelli, Nicolas Fränkel, Marcus Hellberg, Rick Ossendrijver, and Abdel Sghiouar. We talked about a bunch of topics, like evolving your APIs, GraphQL, Java versus Kotlin versus Rust, Vaadin, AI and ChatGPT, OpenRewrite, ErrorProne, Infrastructure, and a lot more.

00:45 Simon Martinelli – Talks about CQRS, REST, APIs, JOOQ, Vaadin

https://www.linkedin.com/in/simonmartinelli

09:08 Nicolas Fränkel - Talks about evolving your APIs, versioning an API, GraphQL, CQRS, REST, ProtoBuffers, Java versus Kotlin versus Rust versus … 

https://www.linkedin.com/in/nicolasfrankel

19:11 Marcus Hellberg – Talks about Vaadin, Web development with 100% Java, AI and ChatGPT

https://www.linkedin.com/in/marcushellberg

31:27 Rick Ossendrijver – Workshop and Talk about OpenRewrite and ErrorProne, Code analysis

https://www.linkedin.com/in/rick-ossendrijver

35:48 Abdel Sghiouar – Talks about Infrastructure, Gateways, and Proxies, Java Community in Morocco, Devoxx Morocco 

42:15 Conclusion

This is part 4 of the JCON interviews. In this episode, we have 5 new guests for you. We start with garbage collectors and Intelligence Cloud, a tool created by Azul to find out which of your code is actually used in production and which dependencies are known to have vulnerabilities. My colleague Gerrit Grunwald was at JCON to give a talk about these subjects. With Balkrishna Rawool we dove into Virtual Threads, a very interesting topic as concurrency and threads can be challenging... Piotr Przybyl came to JCON to give a talk about Test Containers and how to test your application in an environment that is similar to your production environment. Another important topic related to testing is Flaky Tests. How do you handle tests that only fail from time to time and make your whole test report unreliable? François Martin had a talk about this subject, and he came to the conference together with Annelore Egger, who was one of the many volunteers.

00:37 Gerrit Grunwald:  Talks about Garbage collectors, What is Intelligence Cloud and how can you find out which of your code is actually used in production and which dependencies are known to have vulnerabilities

https://www.linkedin.com/in/gerritgrunwald

09:55 Balkrishna Rawool: Talks about structured concurrency, virtual threads, what will come in the next Java releases

https://www.linkedin.com/in/balkrishnarawool

18:00 Piotr Przybyl: Talks about Test Containers, ToxiProxy, how to test your applications in an environment that is similar to your production environment.

https://www.linkedin.com/in/piotrprzybyl

29:23 François Martin: Volunteer JCON + Talks about Flaky Tests, how to handle waits in unit tests, how to do user interface tests, how to reproduce flaky tests.

https://www.linkedin.com/in/fran%C3%A7oismartin

26. Annelore Egger: Volunteer JCON + Visitor + the Java comm

https://www.linkedin.com/in/annelore-egger-244879188

This is part 3 of the JCON interviews. In this episode, Frank meets Otavio Santana, who recently wrote the book "Mastering the Java Virtual Machine." At JCON, he talked about the persistence layer and how you can evolve your career. You'll also learn more about Jakarta EE, GlassFish, and a PET project with messaging via Telegram.

00:42 Otavio Santana: Book Author, Talks about the persistence layer and evolving your career thanks to open-source.
https://www.linkedin.com/in/otaviojava
08:44 Arjan Tijms: Jakarta EE, Eclipse Foundation, Which version of Java to use
https://www.linkedin.com/in/arjan-tijms-1214aa1b1
17:08 Ondro Mihalyi – Jakarta EE, Eclipse GlassFish, Creating small Java applications, Edge devices
https://www.linkedin.com/in/mihalyiondrej
24:09 Buhake Sindi – Talks about Jakarta EE in the cloud, Comparing Jakarta EE to other frameworks, Java community in South Africa
https://www.linkedin.com/in/buhake-sindi
31:50 Patrick Baumgartner – Swiss community, Talks about a PET project with messaging via Telegram
https://www.linkedin.com/in/patbaumgartner

This is part 2 of the interviews we recorded at the JCON conference earlier this month in Germany. In this episode you get two main topics: Maven and Code Quality. In the first part, you'll hear Karl Heinz Marbaise and Steve Pool about the Maven project, the repository, Sonaytype and the security impact of dependencies. But next to security, we as developers are also responsible for the creation of readable and maintainable code. Miro Wengner, Marit van Dijk, and Hinse ter Schuur dive into this topic.

00:28 Karl Heinz Marbaise: Apache Maven version 4, Sonatype, Maven Repository
https://www.linkedin.com/in/khmarbaise/
09:59 Steve Poole: Sonatype, The many languages running on the JVM, The possible impact on a company of getting hacked, Talks about software supply chain security, Maven, SBOMs,…
https://www.linkedin.com/in/noregressions/
27:44 Miro Wegner: Talks about Disciplined Engineering
https://www.linkedin.com/in/mwengner/
34:52 Marit van Dijk: Talks about IntelliJIDEA, reading code, and AI Assistant  
https://www.linkedin.com/in/maritvandijk/
43:50 Hinse ter Schuur: Being a sustainable developer, Talks about code reviews, merge requests, and branching  
https://www.linkedin.com/in/hinseterschuur/

On Tuesday, May 14th, the Foojay Podcast went live at the JCON conference in Cologne, Germany, to talk with speakers and visitors about all things Java. We had so many amazing talks that we will combine them into several podcast episodes in the next weeks. This is part 1!

00:26 Geertjan Wielenga: Founding father of Foojay.io
https://www.linkedin.com/in/geertjanwielenga/
01:18 Markus Kett: Organizer JCON and JUG Oberpfalz
https://www.linkedin.com/in/markuskett/
04:47 Richard Fichtner: Organizer JCON and JUG Oberpfalz
https://www.linkedin.com/in/richardfichtner/
07:04 Jonathan Vila: Organizing Communities, JUGs, and events + Sonar, how can tools be both available for free and still make a profit as a company
https://www.linkedin.com/in/jonathanvila/
14:55 Soham Dasgupta: Community spirit, Talks about Generative AI
https://www.linkedin.com/in/dasguptasoham/
21:29 Mary Grygleski: Volunteer at JCON, Organizing Chicago JUG, Talks about Generative AI
https://www.linkedin.com/in/mary-grygleski/
30:16 Mohammed Aboullaite: Java and Machine Learning and training models
https://www.linkedin.com/in/aboullaite/
37:16 Simon de Groot and Richelle Bussenius: Organizing NLJUG, conferences, communities, and Masters Of Java
https://www.linkedin.com/in/simon-de-groot-ab832a169
https://www.linkedin.com/in/richellebussenius

Once a month, in the Foojay Podcast, we discuss the history of a Java User Group and the people behind it. In this episode, we are in Oberpfalz, Germany, for a particular reason. The organizers of the local JUG are the same people responsible for the JCON conference in Cologne in a few weeks. Let's learn more about the Java community in Germany.

• https://www.linkedin.com/in/richardfichtner/
• https://twitter.com/RichardFichtner  

• https://www.linkedin.com/in/markuskett/
• https://twitter.com/MarkusKett  

• https://foojay.social/@frankdelporte
• https://www.linkedin.com/in/frankdelporte/
  

• https://www.meetup.com/JUG-Oberpfalz/ 

• https://2024.europe.jcon.one/ 
• https://jcon.one/   
• https://twitter.com/jcon_conference  

• https://javapro.io/magazin/  
• https://twitter.com/javapromagazin 
• https://www.linkedin.com/company/javapro/ 
• https://www.youtube.com/channel/UCc446MPHdM41L8lFK47KS7A  
  

00:00 Introduction of the topic and guests
02:09 What should we know about Oberpfalz
02:52 Java history of the guests
05:31 About the start of JUG Oberpfalz in a cafe in Silicon Valley
https://www.businessinsider.com/inside-the-silicon-valley-cafe-where-paypal-tesla-and-netscape-did-deals-2012-2
06:49 About the JCON conference
07:25 How many JUGs in Germany?
07:57 Event schedule of JUG Oberbpfalz
09:17 Why JCON in Cologne?
12:54 Free tickets for JCON for JUG members
https://foojay.io/today/foojay-podcast-19/ : How Working For Free For Fun Brought Me Fame and Fortune – Or At Least Some Of Each – In The End
19:05 About the JAVAPRO magazine
21:49 About the content of JCON conference
25:04 Most remarkable sessions of JUG Oberpfalz
27:24 About the evolutions in Java
https://foojay.io/today/foojay-podcast-47/ : Artificial Intelligence and Machine Learning with Java
https://foojay.io/today/foojay-podcast-29/ : How will AI and ML Influence the Role of Developers?
31:47 AI talks on JCON conference
32:44 1ON1 at JCON conference
38:03 Conclusion

• Barbershop John
• Hermine Deurloo
• Synapse by Shane Ivers - https://www.silvermansound.com 
  

About one and a half years ago, ChatGPT was launched. The way we search for information and develop software has changed a lot since then as the use of Artificial Intelligence suddenly became a lot easier. What can we expect in the near future, and how can we program AI ourselves with Java? Let's find out...

• https://www.linkedin.com/in/lize-raes-a8a34110/ 
• https://twitter.com/LizeRaes 
• Personal blog: www.epic.engineering 

• https://www.linkedin.com/in/lutske/ 

• https://foojay.social/@frankdelporte 
• https://www.linkedin.com/in/frankdelporte/
  

• Foojay Podcast Episode #34: https://foojay.io/today/foojay-podcast-34/ 

• Project repository: https://github.com/langchain4j/langchain4j
• Documentation and tutorials: https://docs.langchain4j.dev/ 
• Talk "Java meets AI: A Hands On Guide to Building LLM Powered Applications with LangChain4j": https://www.youtube.com/watch?v=BD1MSLbs9KE 
• Vaadin chatbot in 20 lines of code: https://twitter.com/marcushellberg/status/1760096226522148940 

• https://foojay.io/today/foojay-podcast-29/
• Talk "The New Superpower in the Developer's Toolbox" with more insights in where the field of software development will evolve in the AI era): https://www.youtube.com/watch?v=rENT1fDR69I 

• https://github.com/langchain4J/langchain4J-examples 
• https://webtechie.be/post/2024-03-18-search-documentation-javafx-chat-langchain4j/ 

• https://sdgs.un.org/ 

• https://www.tornadovm.org/
• https://openjdk.org/projects/sumatra/
• https://openjdk.org/projects/panama/ 

• https://www.tornadovm.org/ 
• https://foojay.io/today/foojay-podcast-45/ 

• Barbershop John
• Hermine Deurloo
• Synapse by Shane Ivers - https://www.silvermansound.com
  

In this podcast, once a month, we discuss the history of a Java User Group and the people behind it. In this episode, I'm leaving the European Union and stepping over the border of Switzerland, the country where the Red Cross was started, and many international institutions have their headquarters. Let's find out if there is also a big Java community...

Last September, we got Java 21, a Long Term Support (LTS) version with eight new big features and seven incubator or preview features. Does Java 22 also bring that much innovation, or is it just a bug-fix release? And what needs to be done to get such a release published on time? Let's find out...