The podcast of foojay.io, a central resource for the Java community’s daily information needs, a place for friends of OpenJDK, and a community platform for th...
Writing a book. Does it make you rich and famous? (#67)
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/ Content00:00 Introduction of the topic and guests01:53 Books by Trisha Gee02:24 Trisha's motivation for writing books04:13 Difference between publisher and self-publishing09:53 Publishers are looking for authors and course creators12:55 How long do you work on a book?17:35 Can we expect a new book by Trisha?21:00 Automating the writing process24:50 Len Epp about Leanpub and how it started27:18 On Leanpub, you can publish a book-in-progress27:51 Different publishing processes with Leanpub30:20 You can use LeanPub to generate your book, but you don't need to sell it on Leanpub32:57 80% of the selling price goes to the author40:09 How to market your book45:35 Let an expert handle the payments...50:55 Books by Wim Deblauwe51:45 Wim's motivation for writing books53:15 Earning back the time spent on the writing54:37 How to sell paper books on Lulu57:19 Tools used to write a book58:34 Wim's author-plans for the future59:42 How the books influenced Wim's career01:00:02 Marián Varga about the topic of his book01:03:07 Current status of the book01:04:03 The book is a teamwork with a publisher01:07:06 Organizing the work between multiple authors01:09:17 Time worked on the book01:10:40 Feedback from the community for the content01:12:13 What Marián wants to achieve with the book01:14:38 Conclusion
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1:15:28
Let's Talk About Java Code! Diving into Foojay blog posts... (#66)
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/ Content00:00 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
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54:59
Boost Your Career in 2025! (#65)
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/ Content00:00 Introduction of topic and guests01:44 Why are the guests mentors for others?06:25 There are many important skills you need to develop07:38 How are they handling the mentoring process?15:58 A mentor needs a mentor himself16:43 Different growing paths, technical versus managing21:59 How participating in JUGs can evolve your career30:50 The impact of being a Java Champion33:33 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 Bruno01:01:16 Outro
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1:02:44
Interviews at JFall about opensource, OpenJDK evolutions, Project Loom, JVM,... (#64)
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 HuttingContent00:00 Introduction of topics and guests01:09 Geertjan Wielenga: OpenJDK evolutions01:47 The goal of Foojay, the website for the Friends Of OpenJDK https://foojay.io/ 03:49 Nataliia Dziubenko: What you can learn at conferences04:48 Writing your own programming language on top of JVM07:30 What it learned her about the Java compiler08:38 How it influenced her career as a Java developer11:20 Hanno Embregts: Project Loom, structured concurrency and scoped values14:04 Playing music during conference talks15:09 Important OpenJDK evolutions17:07 Hinse ter Schuur: Learning at conferences17:58 Best practices for code reviews20:03 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 language24:54 How developers look at infrastructure26:03 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 JUGs30:06 Starting as a new speaker at JUGs30:24 How to contribute to opensource31:24 How to speak at JUG Noord31:53 Learned at JFall32:38 Outro
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33:01
How do we keep our Java applications up to date and secure (#63)
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/ Content00:00 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
The podcast of foojay.io, a central resource for the Java community’s daily information needs, a place for friends of OpenJDK, and a community platform for the Java ecosystem — bringing together and helping Java professionals everywhere.
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