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Foojay.io | Friends of OpenJDK and Java Programming

Foojay.io | Java and Programming Community
Java
Openjdk
Software Development
Garbage Collection
Artificial Intelligence
Cloud Computing
Project Loom
Java 23
Openrewrite
Virtual Threads
Apache Maven
JCON Conference
Generative AI
Cloud Systems
Devbcn Conference
Ai4devs Conference
Maven 4
Machine Learning
Embedded Systems
Open Source

Foojay.io is your go-to programming community podcast, connecting developers with the latest in Java, OpenJDK, JVM, and open source tools. We bring together Java professionals worldwide to share insights, tools, and news in the vibrant Java programming ecosystem.

PublishesTwice monthlyEpisodes100Founded4 years ago
Number of ListenersCategory
Technology

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Latest Episodes

Episode 101 of the Foojay Podcast.

JDK 27 arrives on 15 September 2026 without finalising a single new piece of language syntax. It is still worth the upgrade: object headers shrink from 64 bits to 32, which the JEP measures at 22% less heap and 8% ... more

Episode 100 of the Foojay Podcast. No grand plan. It just happened.

To mark the milestone, Frank turned the microphone around and invited other podcasters: Adam Bien (airhacks.fm), Jennifer Reif (Breaktime Tech Talks), Kadi McKean and Steve Pool (10... more

Your Java AI application is live in production. But have you tested whether it can be jailbroken, manipulated into revealing its system prompt, or tricked into printing content it should never output?

In this episode, Iryna Dohndorf, Software Engine... more

WebAssembly is already running inside Java applications, but most developers just don't know it yet.

In this episode, Andrea Peruffo walks us through how WebAssembly is becoming the modern, safe alternative to JNI. Run Rust, C, and other native libr... more

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Recent Guests

Adam Bien
Developer and host of Airhacks FM, a long-running Java podcast
Airhacks FM
Episode: Foojay Podcast #100: Java Podcasters on Why They Started, What Broke, and What They Learned (#100)
Jennifer Reif
Developer advocate and host of Breaktime Tech Talks
Neo4j
Episode: Foojay Podcast #100: Java Podcasters on Why They Started, What Broke, and What They Learned (#100)
Kadi McKean
Co-host of Wicked Good Development and 10xInsights
10xInsights
Episode: Foojay Podcast #100: Java Podcasters on Why They Started, What Broke, and What They Learned (#100)
Steve Pool
Co-host of 10xInsights
10xInsights
Episode: Foojay Podcast #100: Java Podcasters on Why They Started, What Broke, and What They Learned (#100)
Iryna Dohndorf
Software engineer at Karakun Group, program committee member, creator of Tiberius
Karakun Group
Episode: Testing the Untestable: LLM Security for Java Developers with Tiberius (#99)
Andrea Peruffo
IBM employee who enables WebAssembly on the JVM
IBM
Episode: The End of JNI Pain: How WebAssembly Is Quietly Replacing Native Libraries in Java (#98)
Luis Majano
CEO of Ortus Solutions and creator of BoxLang
Ortus Solutions
Episode: From Scripting Language to AI Powerhouse: How BoxLang Is Redefining JVM Development (#97)
Cristobal Escobar
BoxLang Community Manager, Foojay author
BoxLang
Episode: From Scripting Language to AI Powerhouse: How BoxLang Is Redefining JVM Development (#97)
Hector Ventura
Foojay author and creator of Floci, the AWS emulator project
Foojay.io
Episode: Run 35 AWS Services Locally FREE: Floci, Quarkus and GraalVM-Powered, LocalStack Alternative (#96)

Chart Rankings

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Apple Podcasts
#124
Ukraine/Technology

Talking Points

Recent interactions between the hosts and their guests.

The End of JNI Pain: How WebAssembly Is Quietly Replacing Native Libraries in Java (#98)
Q: What is Wasm doing in JRuby and how does it relate to JNI?
Wasm allows bootstrapping components like the Prism Ruby parser on the JVM without distributing native JNI libraries, providing a way to run complex ecosystems inside the JVM safely, and it can replace JNI in many such use cases by shipping a WebAssembly module that the JVM executes.
The End of JNI Pain: How WebAssembly Is Quietly Replacing Native Libraries in Java (#98)
Q: And what exactly is WebAssembly, in simple terms?
WebAssembly is a binary format that serves as a portable target for compiling code from languages like Rust, C, or Go, so you can run these pieces inside the JVM with a consistent abstraction, keeping execution sandboxed and observable.
Testing the Untestable: LLM Security for Java Developers with Tiberius (#99)
Q: How do you test the security of an LLM application when the output is non-deterministic by design?
Testing must be statistical by design. You run multiple trials to observe distributions of outcomes, use guardrails to constrain responses, and rely on tools like P-Unit integrated into Tiberius to collect confidence intervals and probabilistic security contracts, rather than trusting a single test result.
From Scripting Language to AI Powerhouse: How BoxLang Is Redefining JVM Development (#97)
Q: How does BoxLang relate to Java and the JVM, and what choices do developers have for using BoxLang?
Developers can code in BoxLang with hot or no-op compilation, translate BoxLang to Java bytecode, or bring BoxLang as a library into Java applications, allowing selective use of BoxLang components alongside traditional Java code.
From Scripting Language to AI Powerhouse: How BoxLang Is Redefining JVM Development (#97)
Q: What is BoxLang exactly, in one sentence?
BoxLang is a modern, dynamic language for the JVM that gives Java developers a more expressive and productive way to build applications while staying fully inside the Java ecosystem.

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Frequently Asked Questions About Foojay.io

What is Foojay.io about and what kind of topics does it cover?

The show centers on Java, OpenJDK, JVM, and open source tooling, featuring in-depth conversations with developers, architects, conference organizers, and tool authors who shape the Java ecosystem. Episodes explore topics like language evolution, runtime performance, cloud-native frameworks, security, and AI-assisted development, with practical stories about building and evolving developer tooling, communities, and open source projects. A standout pattern is interviewing practitioners and thought leaders who blend hands-on engineering with community-building, often touching on real-world production considerations, tooling migrations, and the human side of software delivery. Listeners are likely Java professionals seeking practical insights, ... more

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Which podcasts are similar to Foojay.io?

These podcasts share a similar audience with Foojay.io:

1. airhacks.fm podcast with adam bien
2. Inside Java
3. AI Report
4. Talk of the Devils: The Athletic FC's Manchester United show

How many episodes of Foojay.io are there?

Foojay.io launched 4 years ago and published 100 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.

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What guests have appeared on Foojay.io?

Recent guests on Foojay.io include:

1. Adam Bien
2. Jennifer Reif
3. Kadi McKean
4. Steve Pool
5. Iryna Dohndorf
6. Andrea Peruffo
7. Luis Majano
8. Cristobal Escobar

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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