Geertjan Wielenga on foojay.io - Friends of OpenJDK

How to Create a Spring Boot Fraud Scoring Service

Fri, 31 Jul 2026 08:45:43 +0000

Most Java teams who want a machine learning model in production end up standing up a Python service and calling it over HTTP. That works, but it buys you, as a Java developer, a second runtime, a second deployment pipeline, a network hop on every prediction, and a team boundary that turns retraining into someone else’s ticket.

Deep Netts removes that split: it’s a pure-Java deep learning library, so the model trains in Java, serializes to a file, and loads back into your Spring Boot application as an ordinary bean. Predictions become in-process method calls measured in microseconds, with nothing extra to deploy, secure, or monitor.

Toward a Durable Spring PetClinic

Sun, 19 Jul 2026 18:06:06 +0000

Overview

Durable Execution is a way of running code so that its progress survives failure. A normal program keeps its state in memory: if the process crashes, the machine reboots, or a network call times out halfway through a multi-step operation, that state is gone and the work is left half-done.

Temporal, the Durable Execution platform, persists every step of a process to its Event History — a durable, append-only log of Events — so that after any failure the work resumes exactly where it left off, as if the crash never happened.

Temporal Is to Your Code What a Database Is to Your Data

Sat, 11 Jul 2026 10:31:54 +0000

Once upon a time, applications managed their own data files. Every program hand-rolled its own locking, its own crash recovery, its own consistency guarantees. Every program did it badly, in its own unique way.

Then the relational database arrived and made a deal with application developers: you declare what you want, and I guarantee it survives. Atomicity, durability, crash recovery: all of it moved out of application code and into a dedicated platform. Nobody writes their own file-based transaction log anymore.

"This Can't Possibly Work": What I Learned at a Temporal.io Workshop

Fri, 10 Jul 2026 08:41:22 +0000

When developers first hear about Temporal , they tend to move through a predictable sequence of emotions. First comes disbelief — the claim that your application can crash mid-execution and simply pick up where it left off, variables intact, sounds like nonsense. Then comes irritation that anyone would even say such a thing is possible. Then they try it, discover it actually works, and get very excited. And finally they ask the only question that matters: how?

Observing Apache NetBeans with OpenTelemetry and Dash0

Sun, 14 Jun 2026 22:03:09 +0000

What happens when you point an observability agent at your IDE rather than your application?

The question nobody thinks to ask

Observability is something we do to our applications. We instrument services, add trace context to HTTP requests, collect JVM heap metrics, ship logs to a backend. The IDE we use to write that instrumentation is — by convention — invisible. It just runs. When it is slow, we assume it is busy. When it crashes, we restart it. We have no data.

"Agentic" Was Everywhere at Money20/20 Amsterdam

Fri, 05 Jun 2026 08:55:48 +0000

I walked the floor at Money20/20 in Amsterdam with a simple little mission: count the first ten vendor booths using “AI,” “agent,” or “agentic” in their pitch.

My first impression was that this would be hard. Hundreds of organizations, and the buzzwords felt oddly absent — payments, core banking, compliance, the usual fintech furniture, but not the wall-to-wall “agentic everything” I’d braced for. I jotted down my first ten and thought: huh, AI is barely here.

From Zero (Really Zero) to OpenTelemetry

Tue, 19 May 2026 13:36:11 +0000

Here’s a super awesome prompt (e.g., for Claude Code) that you can use with https://github.com/dash0hq/agent-skills , the free collection of skills for AI coding agents to make applications observable with OpenTelemetry, such as with Dash0 .

And the end result is this, a view into the traces of your application (without anything at all at the start of the process).

The Super Awesome Prompt

Take a careful look below: before doing this prompt, not only do we not have an application that is instrumented with OpenTelemetry yet. Not only do we not have the agent we need to do the instrumentation yet.

Foojay Podcast #94: More Than a Blog: How Foojay Connects, Sustains, and Evolves the Java Community

Mon, 04 May 2026 06:26:00 +0000

Foojay.io, the website for the Friends of OpenJDK, is turning six years old. To celebrate, Frank Delporte headed to JCON in Cologne, Germany, and sat down with twelve members of the Java community to talk about what Foojay means to them, what they learn from each other, and how the community is evolving.

This episode covers a lot of ground. Sharat Chandar reflects on 25 years in the Java community and why the people are what keep the language alive. Markus Westergren and Iryna Dohndorf both focus on a theme that comes up again and again: developer sustainability. Not just green software, but how you stay healthy, grounded, and relevant when AI is changing everything around you. Markus and his wife researched how developers are reacting to AI, from ignoring it completely to transforming everything they do. Iryna talks about building resilience and robustness as skills, not afterthoughts.

From Zero to Full Observability with Dash0

Sat, 04 Apr 2026 06:35:47 +0000

This guide walks through the complete process of deploying a minimal Spring Boot service to Kubernetes and adding full observability using the Dash0 Kubernetes Operator — without making any changes to the application code.

Dash0 is an OpenTelemetry-native observability platform that collects and correlates traces, metrics, and logs, and provides infrastructure monitoring across Kubernetes resources — pods, nodes, namespaces, deployments, daemonsets, statefulsets, jobs, and cronjobs — as well as cloud infrastructure such as AWS. Its Kubernetes operator can automatically instrument workloads at the pod level, with no changes required to application code or container images.

Announcing: Sustainability for Java Developers

Mon, 02 Feb 2026 11:04:54 +0000

Java developers from around the world are writing a book about a question that’s becoming impossible to ignore: how do we write software that’s good for both our projects and the planet?

Sustainability for Java Developers: Towards an Understanding of Sustainable Java Software Development is now freely available on Leanpub, bringing together Java Champions, architects, and technical writers to look at sustainability from every angle.

The book covers everything from the environmental footprint of our data centers to the ethics of open source supply chains, from efficient data formats to the often-overlooked topic of career longevity.

Webinar: "Moving Applications From JDK 21 to JDK 25: What You Need to Know"

Mon, 26 Jan 2026 14:14:32 +0000

JDK 25 has arrived as the latest long-term support (LTS) release for Java, bringing performance improvements and enhanced stability for modern applications. If your organization is running JDK 21, now is the time to start planning your migration path.

Why Upgrade?

Each new LTS release represents years of refinements, optimizations, and new capabilities. JDK 25 builds on the foundation of JDK 21 while delivering the reliability that enterprise applications demand. But understanding what’s changed—and what might break—is essential for a smooth transition.

Super Early Bird Tickets: Voxxed Days Amsterdam

Mon, 06 Oct 2025 12:37:44 +0000

After this year’s success, the Voxxed Amsterdam team is proud to announce that next year will be even bigger, with more speakers, breakouts, sponsors, and attendees. We warmly invite you to join and meet us at the JUG Square on April 1–2, 2026 in Amsterdam.

Date: April 1–2, 2026
Location: Pathé Amsterdam (North)
Details & tickets: amsterdam.voxxeddays.com

Speaker Line-up

These industry leaders will be sharing their unique insights at the conference:

Take the State of Java 2025 Survey

Mon, 06 Oct 2025 12:23:17 +0000

Do you want to know which Java JDK distribution is used where for what and when? The time has come again to take the State of Java Survey and share insights while gaining Java ecosystem knowledge.

All those participating will get the complete research, which can be of great benefit in your technology choices in the Java ecosystem.

Click the image below to get started:

Or simply click this link:

Ai4Devs Amsterdam: Successful Inaugural Developer-Focused AI Conference

Fri, 03 Oct 2025 09:37:43 +0000

The inaugural AI4Devs conference in Amsterdam , held recently Friday 19 September, a collaboration between Java Champion Jonathan Vila, local developer agency IO Digital (in particular Joost Kaan, Arno Koehler, and Michel Blankenstein), and the Friends of OpenJDK (Foojay.io), proved to be a resounding success, bringing together approximately 200 developers at Amsterdam’s iO Digital Campus.

ING, Azul, Qodo, and ContentStack

Co-sponsored and co-organized with ING and Azul, together with Qodo and ContentStack, the event featured standout keynote sessions from Josh Long, of SpringBoot fame, and Pratik Patel, from Azul, who delivered insights on AI in the context of Spring and on increasing the speed of Java-based applications, especially in the context of AI-oriented applications.

CodeRabbit Tutorial for Java Developers

Mon, 28 Jul 2025 12:43:19 +0000

CodeRabbit is an AI-powered code review tool that integrates seamlessly with your Git workflow to provide intelligent, automated code reviews.

For Java developers, CodeRabbit offers specialized analysis that understands Java syntax, best practices, and common patterns.

Getting Started

Prerequisites

A GitHub, GitLab, Azure DevOps, or Bitbucket repository.
Java project with standard structure (Maven or Gradle).
Admin access to your repository.

Setup Process

Install CodeRabbit
- Visit CodeRabbit.ai .
- Sign up using your credentials, while noting that CodeRabbit is free for OSS, supports GitHub, GitLab, Azure DevOps, and Bitbucket.
- Grant necessary permissions to your repositories.
Repository Configuration
- Select the Java repositories you want CodeRabbit to review.
- CodeRabbit automatically detects Java projects and configures appropriate rules.
Initial Setup Verification
- Create a test pull request with a simple Java change.
- Verify CodeRabbit comments appear within minutes.

Core Features for Java Development

1. Code Quality Analysis

CodeRabbit analyzes your Java code for:

Foojay Podcast #76: DevBcn Report, Part 1 – Learn from the Community

Mon, 21 Jul 2025 06:41:00 +0000

In early July, the DevBcn conference in Barcelona featured a diverse lineup of speakers, covering topics across multiple technology domains. Geertjan Wielenga took the camera and microphone with him to Spain. Together with Nacho Cougil and Jonathan Vila, two of the organizers, he spoke with many visitors about what they like most in Java, how AI influences their work, and what is important to them in the work they do.

Prime Time: The High Performance Java Event

Tue, 08 Jul 2025 07:05:00 +0000

Java is the engine behind mission-critical applications and end user experiences. From faster response times to consistent performance, Java can have a significant impact on business results and cloud costs.

Join Azul and leading voices from the Java community for Prime Time, a dynamic virtual event dedicated to innovations, strategies, and real-world insights that power high-performance Java estates. No matter where you’re running your apps – on-prem or in the cloud, or if you’re looking to modernize legacy Java workloads – when performance, elasticity, scale and cloud cost matter, Make It Prime.

New AI Conference For And By Developers

Mon, 07 Jul 2025 11:50:54 +0000

AI4DEVS, September 19, 2025 in Amsterdam, is created for and by developers working with AI technologies . Our mission is simple: share practical, usable knowledge with real use cases and code. Whether you’re an experienced AI engineer or just starting to explore machine learning in your applications, AI4DEVS offers valuable knowledge for every level . All the details are here: https://amsterdam.ai4devs.io/

All the details are here: https://amsterdam.ai4devs.io/

Azul and JetBrains Collaborate to Enhance Runtime Performance for Kotlin Workloads

Mon, 26 May 2025 08:23:56 +0000

SUNNYVALE, Calif., — May 20, 2025 — Azul , the only company 100% focused on Java, and JetBrains , the leading provider of professional software development tools and creator of the Kotlin programming language, today announced a strategic technical collaboration to enhance the runtime performance and scalability of web and server-side Kotlin applications. This strategic collaboration empowers Kotlin teams to accelerate development cycles and optimize application performance, helping them support their business priorities while driving greater operational efficiency.

Book Review: Raising Young Coders

Wed, 07 May 2025 07:04:09 +0000

“Raising Young Coders ” by Cassandra Chin: A Parent’s Guide to Inspiring the Next Generation of Technologists

An Author Who Understands Both Sides

“Raising Young Coders: A Parent’s Guide to Teaching Programming at Home” by Cassandra Chin is an invaluable resource for parents seeking to introduce their children to the world of technology in a fun, accessible way.

As a young computer science student who has been teaching kids’ programming workshops since age 14, Chin brings both technical expertise and genuine understanding of children’s learning styles to this comprehensive guide.

Foojay Podcast #70: Celebrating 5 Years of Foojay

Fri, 25 Apr 2025 08:00:00 +0000

On April 25, 2020, Geertjan Wielenga published the first Foojay post . Yes, we are celebrating 5 years since the Friends Of OpenJDK website launch! Today, more than 1,600 posts are on the site, written by over 250 authors. And there is much more to discover within the Foojay world…

In this podcast, we look at how Foojay started with founder Geertjan Wielenga. We’ll also hear from Gerrit Grunwald about how Foojay’s Disco API has become part of your daily work without you realizing it. We also have several of our regular authors and podcast guests who share how Foojay has influenced them (and vice versa).

Foojay Podcast #69: All Things Java at VoxxedDays Amsterdam

Mon, 14 Apr 2025 11:23:24 +0000

On April 3rd, the first VoxxedDays event in Amsterdam took place. VoxxedDays are tech events organized by local community groups, with support from the Devoxx team. Geertjan Wielenga brought along a camera and microphone and spoke with many of the attendees.

This is the first Foojay podcast ever to feature more than 20 guests! Geertjan asked the same two questions to many of conference visitors: “Tell us who you are and what excites you about the technology landscape?” and “What are two tips or insights you’d like to share?”

Join the Celebration of 30 Years of Java

Mon, 03 Feb 2025 08:03:07 +0000

On Thursday, March 13, Azul is hosting a virtual celebration of 30 years of Java, starting at 09:00 PST / 17:00 GMT / 18:00 CET.

In addition to discussion panels, including a Friends of OpenJDK Panel with Marit Van Dijk, Ondro Mihályi, and Simon Martinelli, the highlighted speakers and topics of the program are:

“30 Years of Java” by Simon Ritter
“AI for Busy Java Developers” by Frank Greco
“Behind-the-Scenes Innovations in Java” by Venkat Subramaniam
“Reading Code” by Marit van Dijk
“We Hate Code - The Joy of Maintaining Dead and Unused Code” by Gerrit Grunwald

The whole program is here.

Encryption and Data Security Market Analysis: Market Analysis 2025

Tue, 07 Jan 2025 09:01:13 +0000

The data encryption and security market continues to evolve as organizations face increasing demands for data protection while maintaining operational efficiency.

The market includes established solutions and innovative approaches to encrypted data processing and security.

Market Overview

The global encryption software market is driven by data protection regulations, Cloud adoption, and the need for secure data processing. Organizations seek solutions that balance robust security with practical operational capabilities.

Competitive Landscape

Anjuna

Anjuna delivers baseline confidential computing capabilities focused on hardware-based security measures. Their platform implements routine encryption management through standard TEE integrations and common key management approaches. The solution provides fundamental confidential computing features while following accepted enterprise security patterns.

Incident Response Platform Comparison: Market Analysis 2025

Thu, 02 Jan 2025 08:38:07 +0000

The incident response platform market continues to expand as organizations prioritize effective incident management in their Cloud-native environments and beyond.

The market features a range of solutions offering incident management capabilities, with varying approaches to enterprise and team needs.

Market Overview

The incident management market is driven by increasing Cloud complexity, rising downtime costs, and growing DevOps adoption.

Organizations are seeking solutions that can effectively integrate with their existing tools while providing streamlined incident response workflows.

Java Conferences in 2025

Wed, 01 Jan 2025 16:12:00 +0000

Also see javaconferences.org , a subset of which is below.

January

15: Voxxed Days CERN, Switzerland
17: Voxxed Days Ticino, Switzerland
23, 24, 27, 28: Virtual JChampions Conference

February

3 - 5: Jfokus, Stockholm, Sweden
26 - 28: ConFoo, Montreal, Canada
27, 28: DevWorld, Amsterdam, Netherlands

March

April

Foojay Podcast #64: Interviews at JFall about opensource, OpenJDK evolutions, Project Loom, JVM,...

Mon, 23 Dec 2024 10:51:20 +0000

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!

Video

Podcast Apps

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Foojay.io At JFall 2024 (And The Winner Is...)

Tue, 12 Nov 2024 08:47:26 +0000

Last week JFall —the “Biggest Java Conference of the Netherlands”—took place. Foojay.io, the Friends of OpenJDK, were there in full force, including a booth with stickers and other swag, as well as Frank Delporte with his popular Foojay.io Podcast, doing live interviews with attendees.

Not only Frank was present throughout the day, doing interviews for upcoming podcast episodes, but so was his 14-year-old son Vik (in yellow sweater in the pic above), handling the technical side and directing the interviews like a true and enthusiastic professional.

Learn About How Your Peers Use Java!

Thu, 24 Oct 2024 12:44:16 +0000

Do you ever wonder what OpenJDK distributions and what Java versions your peers are using? Java-based infrastructures and languages? How many are using Java to code AI functionality? How Java workloads are affecting cloud compute costs?

Azul has been gathering all that data from a survey of Java users, running until 6:30pm CT on October 31, 2024. If you want to participate, the survey is short, and we’ll hook you up with the report after the survey is complete in January 2025.

Unsupported OpenJDK Distributions are at Risk of Non-Compliance with DORA

Mon, 26 Aug 2024 12:24:05 +0000

For the EU Digital Operations Resilience Act (DORA) to have any meaning at all in the context of OpenJDK (and surely it must have application there since it is explicitly focused on “ICT Assets”, which it defines as broadly as possible as “a software or hardware asset in the network and information systems used by a financial entity”), it can only be interpreted to, at the very least, very strongly encourage the usage of supported OpenJDK distributions.

Connecting Resilience to Performance in Relation to OpenJDK

Thu, 22 Aug 2024 08:22:37 +0000

When considering the connection between performance and resilience in Java, especially in the context of OpenJDK distributions, specific distributions—like Azul Platform Prime , which includes Azul Zing, an enhanced build of OpenJDK for superior performance, consistency, and efficiency—offer unique features that can significantly influence how these two aspects are managed.

The Digital Operational Resilience Act (DORA) by the European Union adds another layer of importance to these considerations, particularly for financial institutions operating within the EU, regardless of whether they are themselves EU-based institutions .

DevIgnition with Foojay.io at Washington DC JUG

Wed, 14 Aug 2024 13:06:50 +0000

DevIgnition is a fun and informal community event run for and by the Washington DC software development community. One November 7, a full day of interesting presentations will be featured from excellent speakers from around the world on a wide variety of technical topics.

Come discover how the best minds use the latest technologies to build solutions. Network with other DC area software developers, and discuss the newest emerging trends and techniques.

The Impact of the EU DORA Act on Non-EU Financial Organizations

Wed, 14 Aug 2024 05:33:09 +0000

The EU Digital Operational Resilience Act (DORA) is a significant regulatory framework designed to strengthen the digital resilience of financial institutions within the European Union.

While the primary focus of DORA is on EU-based entities, its impact extends beyond the EU’s borders, particularly to financial organizations outside the EU that have business ties with the region.

Here’s how DORA impacts financial organizations outside the EU.

1. Third-Party Service Providers

Scope of Regulation. DORA covers not just financial entities within the EU but also third-party service providers, including Cloud services, software providers, and IT services. If these providers serve EU financial institutions, they must comply with DORA’s requirements, even if they are based outside the EU.
Increased Compliance Costs. Non-EU service providers might need to invest in compliance infrastructure to meet DORA standards, which include stringent cybersecurity measures, operational resilience requirements, and incident reporting protocols.
Operational Changes. These providers may need to adapt their operations to comply with DORA’s requirements, potentially impacting service delivery, pricing, and contractual arrangements with their EU clients.

2. Cross-Border Operations

EU Subsidiaries. Non-EU financial organizations with subsidiaries or branches in the EU must ensure that these entities comply with DORA. This might require significant changes in internal processes, governance structures, and IT systems.
Data Protection and Transfer. DORA’s focus on operational resilience and cybersecurity intersects with data protection regulations. Non-EU organizations must ensure that data transfers and processing are compliant with EU standards, which could involve changes in data management practices.

3. Competitive Pressure

Market Access. To maintain or gain access to the EU market, non-EU financial organizations must align with DORA’s requirements. Failure to comply might restrict their ability to operate within the EU or provide services to EU-based clients.
Reputation and Trust. Organizations that proactively comply with DORA may gain a competitive edge by being seen as trustworthy and secure partners. Conversely, those that lag may face reputational risks, especially in a market increasingly focused on cybersecurity and operational resilience.

4. Indirect Impact Through Business Relationships

Supply Chain Scrutiny. DORA requires EU financial entities to ensure that their supply chain, including non-EU entities, adheres to operational resilience standards. Non-EU organizations in these supply chains may face increased scrutiny and pressure to comply with DORA, indirectly impacting their operations and costs.
Contractual Obligations. Financial institutions in the EU may impose new contractual obligations on non-EU partners to ensure DORA compliance. This could lead to renegotiation of contracts and increased legal and operational overheads for non-EU entities.

5. Global Regulatory Influence

Precedent for Other Jurisdictions. DORA could set a precedent, encouraging other jurisdictions to adopt similar regulatory frameworks. Non-EU financial organizations may find themselves needing to adapt to a broader wave of operational resilience regulations globally, beyond just the EU.

6. Impact on Financial Services Market

Barrier to Entry. DORA’s stringent requirements might act as a barrier to entry for smaller or less-resourced non-EU financial firms seeking to enter the EU market, potentially limiting competition.
Innovation and Fintech. While aiming to enhance security, DORA may also slow down innovation, as non-EU fintech firms might find the compliance burden heavy, possibly leading to a more cautious approach in launching new products or services in the EU.

Summary

The EU DORA Act significantly impacts financial organizations outside the EU, especially those providing services to or operating within the EU.

Consequences of DORA on Java and OpenJDK with Azul

Fri, 02 Aug 2024 13:49:44 +0000

The EU’s Digital Operational Resilience Act (DORA) is a regulatory framework aimed at enhancing the digital operational resilience of financial institutions within the European Union.

Its primary goal is to ensure that financial entities can withstand, respond to, and recover from all types of ICT-related disruptions and threats, such as cyberattacks.

DORA establishes a uniform set of requirements for managing ICT risks across the financial sector, promoting a harmonized approach to digital resilience.

The Impact of the Digital Operational Resilience Act (DORA) on Java Investment with Azul

Sun, 14 Jul 2024 13:26:13 +0000

The Digital Operational Resilience Act (DORA) , Regulation (EU) 2022/2554 ,is a key piece of European Union legislation focused on strengthening the resilience of the financial sector against digital operational risks, such as cyber attacks and other ICT-related disruptions.

DORA is part of the broader Digital Finance Package introduced by the European Commission to enable innovation and competition in the financial sector while ensuring its security and resilience.

It is focused on enhancing ICT risk management, strengthening cybersecurity, ensuring continuity and recovery, managing risks arising from dependencies on third-party ICT service providers, and incident reporting.

Foojay Podcast #49: JCON Report, Part 1 - JUGs, Communities, Generative AI, and more!

Tue, 21 May 2024 06:05:39 +0000

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 about JUGs, Communities, Open Source, Generative AI, LangChain4j, Machine Learning!

Video

Podcast Apps

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Oracle Alternatives Survey & Report

Mon, 13 May 2024 19:27:51 +0000

Azul is planning to issue an Oracle Java “alternatives” Report in late July, and would like your help to complete the survey.

The focus of this report is to explore the following themes:

highlight the frictions created by Oracle with their pricing policies and tactics
show whether customers are in fact moving off of Oracle Java to OpenJDK alternatives
prove the extent to which customers are willing to pay for commercial support and application migration expertise

Below is the link to the survey.

Foojay.io Mini Conference at Uber, Amsterdam

Mon, 11 Mar 2024 16:59:56 +0000

Uber Tech is partnering with Java User Group Amsterdam to host their first mini conference with Foojay.io . Come and join in at the Uber Amsterdam HQ and learn from experts in their fields.

This meetup will be hosted by Uber Tech, in their office at Uber, Burgerweeshuispad 301, Amsterdam.

Note: To get the bar code and details for entering the event, you need to register on this meetup page as well as here at Uber Tech .

Friends of OpenJDK Hangout at FOSDEM 2024

Mon, 29 Jan 2024 10:20:42 +0000

FOSDEM is here again , this coming weekend. Many will remember the great hangout friends of OpenJDK had at Bier Centraal in Brussels last year.

Well, that was a great experience and all those connected in any way to OpenJDK, whether speaking or not at FOSDEM, are extremely welcome to spend time with the friends of OpenJDK community on Saturday evening at the same location, Bier Centraal (Anspachlaan 37).

https://maps.app.goo.gl/7w4NY2QLCSVMdoDz5

Digma, Apache APISIX, and OpenValue: Foojay.io at JFall 2023

Mon, 13 Nov 2023 22:19:48 +0000

Last week’s JFall 2023 was a high point in the evolution of Foojay.io, the place for friends of OpenJDK.

We had a very big booth right by the entrance to the venue, consisting of a large rollout banner featuring all the organizations involved in Foojay.io, a table totally covered in stickers (hundreds, maybe thousands, of Foojay.io stickers, as well as sponsor stickers, such as Digma), and a podcast zone, where Frank spent most of the day recording short podcast interviews with a very wide range of Java enthusiasts attending the event.

Book Review: "Java Basics", by Shai Almog

Sat, 16 Sep 2023 08:43:09 +0000

Shai Almog’s “Java Basics: A Practical Introduction to Full Stack Java ” more than lives up to its title. And how could it be otherwise, with its highly Java driven and opinionated author having a track record going back to leading Java mobile efforts all the way back to Sun Microsystems.

Thoroughness and Ambition

The thoroughness and ambition of the book is clear from its table of contents, each chapter well laid out, in short very readable chapters, each ending with a summary and a quiz.

Book Announcement: "OpenJDK Migration Guide for Dummies"

Tue, 01 Aug 2023 16:15:47 +0000

For the fourth time in four years, Oracle has changed how it prices and licenses Java.

Many organizations that rely on Java are switching from the Oracle JDK to OpenJDK and taking advantage of significant cost savings in the process.

But if you have a variety of specialized Java applications, created at different times and running on different JDK versions, you may have some anxiety about making the switch.

But, worry no more, Java Champion Simon Ritter has you covered in a new (free) book.

Foojay Status Report: July 2023

Mon, 03 Jul 2023 05:20:56 +0000

Since the start of the Friends of OpenJDK community in April 2020, we’ve had half yearly status reports, providing the highlights of the past half year, together with some stats and analysis, ending with roadmaps for the next upcoming periods.

Note: Here are the earlier reports, from January - June 2021 , July - December 2021 , and January - June 2022 . At that stage, a much stricter cookie policy was implemented, for reasons of the EU’s GDPR and similar, so that the Google Analytics trends which had been very nice until that stage (we had as much traffic in the first half of 2022 as we had for the whole of 2021) were destroyed. Attempts were made to recover or reinstate similar methods for analyzing usage, hence the delay in reports coming out since midway through last year, though these attempts have failed. And if the method for counting usage changes as dramatically as it now has, then it becomes impossible to discuss trend comparisons from before that change and after it. In terms of trends, we now need to start from scratch. Since that is not something that can be repaired, making comparisons between different periods in the past and the current period, as in previous reports, doesn’t make sense anymore.

State of Java Survey

Tue, 23 May 2023 05:47:41 +0000

Do you ever wonder what OpenJDK distributions and what Java versions your peers are using? Java-based infrastructures and languages? How many are running Java applications in public clouds?

THE SURVEY DESCRIBED BELOW IS NOW COMPLETE, NO MORE RESPONSES CAN BE ACCEPTED.

Azul has been gathering all that data from a survey of Java users, running until 6:30pm CT on June 15, 2023. If you want to participate, the survey takes about 10 minutes, and we’ll hook you up with the report after the survey is complete. Plus you’ll be helping to add to our collective knowledge. Plus you’ll be entered into a drawing to win prizes like an Apple MacBook Pro laptop or a set of AirPods.

FinOps: Tim O'Brien at Walmart

Mon, 22 May 2023 06:01:54 +0000

FinOps and Cloud Cost Management, what’s it all about and how does it impact us as developers and others who are close to the code? In this series on Foojay.io, you’re introduced to FinOps practitioners around the world, focused on how they have gradually found themselves, their technology, and their organization in the FinOps space.

Tim O’Brien is Senior Director of Engineering, Cloud Cost Management at Walmart, with experience in all aspects of software development from project inception to developing scaleable production architectures for large-scale systems during critical, high-risk events such as Black Friday. He has helped many organizations ranging from small startups to Fortune 100 companies take a more strategic approach to adopting and evaluating technology and managing the risks associated with change.

FinOps: John Stuart at Azul

Mon, 15 May 2023 06:11:11 +0000

FinOps and Cloud Cost Management, what’s it all about and how does it impact us as developers and others who are close to the code? In this series on Foojay.io, you’re introduced to FinOps practitioners around the world, focused on how they have gradually found themselves, their technology and their organization in the FinOps space.

John Stuart is an executive and leader in DevOps, FinOps, Infrastructure and Security at Azul.

Foojay.io at FOSDEM 2023 Trip Report

Mon, 06 Feb 2023 20:58:47 +0000

“What if Simon Ritter’s Friends of OpenJDK keynote session at FOSDEM entitled ‘After Nearly 30 Years, How Is Java So Popular? ’ ends up being held… in an empty room?”

In a nutshell, this was my worst case scenario slash biggest ‘concern’ over the past weeks, narrowly followed by the image of someone taking a pic of Simon in an empty room talking about Java’s popularity.

After all, it’s been several years since the last in-person FOSDEM was held in Brussels, Belgium, so maybe there wouldn’t be that many people. Secondly, the abovementioned keynote session was scheduled at 09:00 AM on a Sunday morning. Also, thirdly, is Java at all still a hot enough topic to attract people at FOSDEM, where there are multiple rooms and tracks competing for attention and attendance, with lots of young fresh faced developers who might prefer spending time in any of the other many rooms.

More Foojay.io FOSDEM Speaker Predictions for 2023

Tue, 31 Jan 2023 08:28:10 +0000

Following on from the first part in this series , covering Simon Ritter and several more, here is the next set of reflections on 2022 and expectations for this year, from speakers who will be in the Foojay.io developer room at FOSDEM on Sunday, 5 February.

What’s going to happen this year? In the software supply chain arena, it’s pretty clear that 2023 will be the year of SBOMs, Government legislation and (of course) a continued exponential increase in supply chain attacks.

Foojay Podcast #12: State and Future of the IDEs

Mon, 23 Jan 2023 10:14:45 +0000

In this podcast, we are talking to some of the key people working on different IDEs, Integrated Development Environments.

Those are applications that provide tools to computer programmers for software development.

An IDE typically consists of at least a source code editor, build automation tools, and a debugger.

Let’s learn how these tools evolved, and the challenges they face to stay up-to-date with the many evolutions in Java and all other programming languages.

Foojay.io FOSDEM Speaker Predictions for 2023

Fri, 20 Jan 2023 13:40:25 +0000

FOSDEM is around the corner and a group of great speakers is lined up to talk about the OpenJDK and the many different ways in which to make use of it.

Each comes from a different part of the OpenJDK ecosystem, with different perspectives, and therefore unique insights into what to expect for this year.

Tip—in each expectation/prediction for 2023 below, click the author’s name and you’ll be brought to information about their session that you can attend, all for free, at FOSDEM on Sunday, 5 February, in the Foojay.io room.

Friends of OpenJDK Schedule at FOSDEM 2023

Thu, 19 Jan 2023 14:42:49 +0000

Again, i.e., following on from good times in 2022 and 2021 , we have a really great schedule with inspiring speakers for FOSDEM in Brussels, on Sunday, February 5, providing a place for friends of OpenJDK in the Foojay.io Developer Room.

It’s all free and fun and we’re also organizing a get together with drinks and food the evening before, on Saturday, February 4.

Click the pic above or here to get to the place on the FOSDEM site, check out the sessions, speakers, and be there, it will be educational and fun, as always. 🙂

Friends of OpenJDK at FOSDEM 2023

Tue, 22 Nov 2022 08:30:07 +0000

We’re excited to announce that friends of OpenJDK (foojay.io), that is, developers who use OpenJDK on a day to day basis developing tools and technologies in languages such as Java and Kotlin, will be represented at FOSDEM 2023 again at the live Foojay DevRoom on Sunday, 5 February 2023!

Here you can find the CFP (Call For Papers) for submitting your talks, giving you the opportunity to deliver a talk during the Foojay DevRoom.

Foojay Podcast #6: Welcome to Foojay!

Mon, 24 Oct 2022 15:50:35 +0000

In this episode of the Foojay Podcast, we want to give you a look behind the curtains of Foojay.io.

The very first post on the website dates from April 25th in 2020, and it was by Geertjan Wielenga.

Let’s look back and what has happened on Foojay during the 2,5 years since that first post, and talk to some of the people behind the project.

Podcast Apps

You can listen and subscribe to the Foojay Podcast on:

OpenJDK 19 Released!

Tue, 20 Sep 2022 16:00:40 +0000

OpenJDK 19 has been released today! Get it from your favorite vendor… whether it is BellSoft, Amazon, Red Hat, Azul, Oracle, Microsoft or any other of a large number of Java providers .

The friends of OpenJDK community has put together a number of resources, and more coming in the coming weeks, about the new features and all the enhancements and fixes that have gone into the release, accompanied by a brand new podcast released today, featuring key Java community leaders from around the world.

join.slack.com/t/foojay/signup

Thu, 04 Aug 2022 14:14:09 +0000

Join the Foojay.io community on Slack, here:

bit.ly/join-foojay-slack

Encountering any kind of problem while signing up to Foojay Slack? Send a quick e-mail off to hello AT foojay DOT io for help!

On Slack, the Foojay.io community discusses articles, insights, tips, tricks, events, and more, all related to users of the OpenJDK, such as Java and Kotlin developers.

Released: OpenJDK 18.0.2, 17.0.4, 15.0.8, 13.0.12, 11.0.16, 8u342

Wed, 20 Jul 2022 12:32:00 +0000

Java has regular patch and security updates that are co-ordinated across the community, they happen once per quarter. When these updates happen, there are fixes that include security issues, all of which are displayed on Foojay.io.

The next quarterly release of the OpenJDK has been made available, as scheduled, for July 2022, impacting a number of OpenJDK releases.

All the fixes provided for each updated OpenJDK release are found here:

Foojay Status Report: January – June 2022

Mon, 04 Jul 2022 07:01:20 +0000

It’s been another half year of content and activities in and around the place for friends of OpenJDK… let’s look at some statistics, trends, comparisons, highlights, and plans for the future!

Trends and Comparisons

Let’s start by looking at Google Analytics, what’s the curve look like for the past half year? Here it is:

Over the past 6 months, from the first day of January to the last day of June, there were 90K unique visitors and 127K sessions on Foojay.io. That is meaningless in the absence of something to compare it to. Let’s compare the above to the same analysis for the entirety of last year, from the first day of last year to the last day of last year:

How To Submit Your Next Article On Foojay.io

Tue, 03 May 2022 18:32:09 +0000

Foojay, the place for friends of OpenJDK, is a friendly community of Java and Kotlin developers who share tips and insights every day on Foojay Today . We would love to publish your article too!

Since September 2026, Foojay.io moved from a WordPress system to a static site built with Hugo and published from a public GitHub repository, github.com/foojayio/website . Contributing an article means adding a small folder of files (your text and images) to that repository. You don’t need to know Hugo — everything you need is in a ready-made template.

"Contrast Security Joins Foojay Advisory Board to Accelerate Java Developer Community Growth, Raise Security Perspective" — PR News

Tue, 12 Apr 2022 11:52:00 +0000

LOS ALTOS, Calif., April 12, 2022 /PRNewswire/ – Contrast Security (Contrast), the leader in code security that empowers developers to secure-as-they code, today announces its commitment to helping Java developers build code securely by joining the Foojay Advisory Board.

“Prior to the creation of Foojay, the ecosystem of OpenJDK users lacked a vendor-neutral community platform for many years. It is wonderful to see more and more individuals and organizations, such as Contrast Security, getting involved since the foundation’s inception in April 2020. Contrast Security not only shares their insights about the OpenJDK, but also provides valuable security tips and tricks as well as helps collaborate around Foojay, the place for friends of OpenJDK,” said Geertjan Wielenga, Senior Director of Open Source Projects at Azul, the initiator of Foojay.

Foojay at FOSDEM 2022 on YouTube And Prize Winners

Thu, 17 Feb 2022 09:52:49 +0000

Last weekend, FOSDEM 2022 was held virtually, with the friends of OpenJDK putting together an awesome program around the tools and editors that support the OpenJDK, from overviews of new OpenJDK features, to cutting edge development with new languages on the OpenJDK, sessions on the ever important topic of security, as well as new developments in JavaFX, Jakarta EE, Raspberry Pi, and beyond:

https://fosdem.org/2022/schedule/track/friends_of_openjdk/

Around 200 attended the program across two days, which was pretty good compared to the other rooms and the interaction was good in the chat, with the speakers being present during and after the recordings were played for discussion and more.

Video: SDKMAN Explained

Fri, 04 Feb 2022 08:30:04 +0000

One of the highlights of the Friends of OpenJDK room at FOSDEM 2021 was Marco Vermeulen, the creator of SDKMAN, talking about SDKMAN.

Check it out here, in the Foojay YouTube channel:

Tip: More content from the Foojay room at FOSDEM 2021 is here .

Even more, including cool techy prizes, in this year’s edition of the event, as described here .

Friends of OpenJDK at FOSDEM with Prizes

Thu, 03 Feb 2022 10:42:04 +0000

A great line up of known and less known OpenJDK users will be presenting new and unique content in the Friends of OpenJDK room at FOSDEM this weekend.

Check out the great program , there’s likely something for everyone, starting with new features in Java, including the hot topic of Java security, expanding out from Java to Kotlin and beyond, as well as several sessions around JavaFX and Java on the Web and beyond.

Foojay Status Report: July – December 2021

Thu, 13 Jan 2022 14:21:20 +0000

Another 6 months are behind us… and let’s take a look at some stats on Foojay, a central resource and community platform for friends of OpenJDK. (The previous report is here. )

In the back of my mind, in the first full year of Foojay, it would have been great to have had 50K unique visitors and 100K sessions , in terms of Google Analytics. Below is the actual result over the whole of last year, i.e., significantly more unique visitors and sessions than anticipated: 84K unique visitors and 131K sessions.

Friends of OpenJDK at FOSDEM 2022

Sun, 05 Dec 2021 12:00:03 +0000

Over the last few years at FOSDEM —the free event for software developers, many of them in the open source ecosystem, for meeting, sharing ideas and collaborating—one of the developer rooms has been focused on short presentations dealing with demos and overviews of free tools and editors.

The programs for 2020 and 2019 are listed below:

https://archive.fosdem.org/2020/schedule/track/free_tools_and_editors

https://archive.fosdem.org/2019/schedule/track/free_tools_and_editors

You can see in the above that the room was organized by developers connected to, in particular, Eclipse, IntelliJ IDEA, and NetBeans.

Book Review: "Effortless Cloud-Native App Development Using Skaffold"

Fri, 15 Oct 2021 08:19:17 +0000

In “Effortless Cloud-Native App Development Using Skaffold ”, Ashish Choudhary provides a thorough overview of Skaffold , with the book’s subtitle clearly defining its agenda: “Simplify the development and deployment of Cloud-native SpringBoot applications on Kubernetes with Skaffold”.

Section 1, “The Kubernetes Nightmare – Skaffold to the Rescue”, promises to describe “the pain and suffering of developing an application with Kubernetes”, with Skaffold as the solution to help in automating the building, pushing, and deployment of applications running on Kubernetes.

JReleaser: Looking for Translation Contributions

Fri, 08 Oct 2021 20:45:46 +0000

The JReleaser project has recently added internationalization support to its CLI tool, with complete translations for English, German, French, and Brazilian Portuguese. A translation to Italian is currently in the works.

The project is looking for people who would like to contribute translations to their native language, allowing JReleaser to reach and help an even wider audience.

If you’re interested in joining these efforts, please open a ticket at https://github.com/jreleaser/jreleaser/issues , letting the project maintainers know which language you’d like to tackle.

Book Review: "Help Your Boss Help You"

Fri, 13 Aug 2021 12:19:00 +0000

Some books were written to be read once and put aside, others to be read thoroughly several times over and then to be placed behind glass to be broken in case of emergency. This book is of the latter kind—once you’ve read through it a few times, and dipped into the areas that speak to you most, you want to have it nearby both as a PDF and in hard copy format —as a backup just in case you can’t find that PDF at the crucial moment when you really need to have a response at hand in times of crisis. You’ll also gradually find your hard copy filled with yellow sticky notes at the points in the book that speak to you most, with underlinings of the crucial passages that resonate back to battles long gone but frequently relived in anguish.

Schedule for Foojay Virtual OpenJDK 17+ JUG Tour

Tue, 10 Aug 2021 12:04:52 +0000

As announced last month , to celebrate the OpenJDK 17 and Foojay.io as a vendor-neutral community platform for its users , we’re kicking off the Virtual Foojay JUG Tour to be held during and around its release month of September.

And here’s the schedule, note that it will change as more meetups are confirmed, and if your JUG is missing, i.e., you’d like to still be included in the tour, no worries, let’s see what can be done, simply contact JFrog’s Ari Waller (ariw at jfrog dot com) and Payara’s Jadon Ortlepp (jadon.ortlepp at payara.fish), Foojay’s Event Managers, and specify a date and time (and preferred topics ) together with some dates and times that would work for your JUG.

Announcement: Virtual Foojay OpenJDK 17+ JUG Tour

Wed, 21 Jul 2021 16:07:16 +0000

To celebrate OpenJDK 17 and Foojay as a community platform for its users, we’re kicking off the Virtual Foojay OpenJDK 17+ JUG Tour, focused on OpenJDK 17, plus more!

Ari Waller, JFrog’s Event Manager, well known to many JUGs, will continue to wear a second hat, as he did on the previous tour—that of Foojay Event Manager, together with Jadon Ortlepp from Payara, newly added to the Foojay Event Team!

Foojay Status Report: January - June 2021

Wed, 09 Jun 2021 09:16:00 +0000

The 1/2 year mark of 2021 is a good moment to reflect on the current status 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), and to look at where we are and where to go next!

First, some data! Here’s the Google Analytics graph showing total unique visitors to Foojay.io over the past half year, with several interesting spikes, explained in detail below.

Participate in the Java Ecosystem Survey 2021

Thu, 01 Apr 2021 16:03:13 +0000

Just like in 2020, Snyk is creating a comprehensive Java 2021 report that reflects the state of the JVM ecosystem.

Note: Friday, 2 April, the survey will come to an end, after running since the middle of February, spread the word! 🙂
Go to the Java 2021 survey

Here’s the summary of the JVM Ecosystem 2020 report:

As always, we couldn’t have done this without you! So, once again, we ask for your help with the 2021 edition of the JVM Ecosystem Report.
Go to the Java 2021 survey

Highlights of the Newest and Latest JEPs in Java 16

Tue, 16 Mar 2021 18:02:43 +0000

The JDK Enhancement Proposal (or JEP) is a community process for collecting proposals for enhancements to the OpenJDK.

Java 16, released today, incorporates the JEPs below:

|———|—————————————————————————————-|———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————-| | JEP | Name | Summary | | 338 | Vector API (Incubator) | Provide an initial iteration of an incubator module , jdk.incubator.vector, to express vector computations that reliably compile at runtime to optimal vector hardware instructions on supported CPU architectures and thus achieve superior performance to equivalent scalar computations. | | 347 | Enable C++14 Language Features | Allow the use of C++14 language features in JDK C++ source code, and give specific guidance about which of those features may be used in HotSpot code. | | 357 | Migrate from Mercurial to Git | Migrate the OpenJDK Community’s source code repositories from Mercurial (hg) to Git. | | 369 | Migrate to GitHub | Host the OpenJDK Community’s Git repositories on GitHub . In concert with JEP 357 (Migrate from Mercurial to Git) , this would migrate all single-repository OpenJDK Projects to GitHub, including both JDK feature releases and JDK update releases for versions 11 and later. | | 376 | Concurrent Thread-Stack Processing | Move ZGC thread-stack processing from safepoints to a concurrent phase. | | 380 | Unix-Domain Socket Channels | Add Unix-domain (AF_UNIX) socket support to the socket channel and server-socket channel APIs in the java.nio.channels package. Extend the inherited channel mechanism to support Unix-domain socket channels and server socket channels. | | 386 | Alpine Linux Port | Port the JDK to Alpine Linux, and to other Linux distributions that use musl as their primary C library, on both the x64 and AArch64 architectures, | | 387 | Elastic Metaspace | Return unused HotSpot class-metadata (i.e., metaspace) memory to the operating system more promptly, reduce metaspace footprint, and simplify the metaspace code in order to reduce maintenance costs. | | 388 | Windows/AArch64 Port | Port the JDK to Windows/AArch64. | | 389 | Foreign Linker API (Incubator) | Introduce an API that offers statically-typed, pure-Java access to native code. This API, together with the Foreign-Memory API (JEP 393 ), will considerably simplify the otherwise error-prone process of binding to a native library. | | 390 | Warnings for Value-Based Classes | Designate the primitive wrapper classes as value-based and deprecate their constructors for removal, prompting new deprecation warnings. Provide warnings about improper attempts to synchronize on instances of any value-based classes in the Java Platform. | | 392 | Packaging Tool | Provide the jpackage tool, for packaging self-contained Java applications. | | 393 | Foreign-Memory Access API (Third Incubator) | Introduce an API to allow Java programs to safely and efficiently access foreign memory outside of the Java heap. | | 394 | Pattern Matching for instanceof | Enhance the Java programming language with pattern matching for theinstanceof operator. Pattern matching allows common logic in a program, namely the conditional extraction of components from objects, to be expressed more concisely and safely. | | 395 | Records | Enhance the Java programming language with records , which are classes that act as transparent carriers for immutable data. Records can be thought of as nominal tuples. | | 396 | Strongly Encapsulate JDK Internals by Default | Strongly encapsulate all internal elements of the JDK by default, except for critical internal APIs such as sun.misc.Unsafe. Allow end users to choose the relaxed strong encapsulation that has been the default since JDK 9. | | 397 | Sealed Classes (Second Preview) | Enhance the Java programming language with sealed classes and interfaces . Sealed classes and interfaces restrict which other classes or interfaces may extend or implement them. |

Download OpenJDK Today!

Tue, 09 Mar 2021 10:35:00 +0000

Multiple different vendors provide the OpenJDK and Foojay.io gives you access to them all.

Simply go here: foojay.io/download

Note: in the lower part of the navigation bar on the left, you can finetune your selection so that you can download exactly the OpenJDK distribution that you need:

Foojay Announces Initial Companies Making Up Its Advisory Board

Mon, 08 Mar 2021 14:21:00 +0000

Today, published by Jenna Sargent in SD Times :

Virtual Tour Is Biggest Project Yet For Java Community Platform Foojay

Wed, 03 Mar 2021 18:27:05 +0000

Fifteen events are already confirmed in an ambitious virtual tour of Java User Groups across the globe, marking a strong start for new Java community platform Foojay. Foojay.io was founded last year as a vendor-neutral platform for developers who create and run applications on top of Java and OpenJDK. It is designed to provide free information on all things Java, with updated analysis, highlights, OpenJDK update release details, and command line arguments hosted on its website.

Here's The Schedule for Foojay Virtual JUG Tour!

Mon, 22 Feb 2021 11:08:17 +0000

As announced last month , to celebrate the OpenJDK and Foojay.io as a vendor-neutral community platform for its users , we’re kicking off the Virtual Foojay JUG Tour to be held throughout March and April.

And here’s the schedule, note that it will change as more meetups are confirmed, and if your JUG is missing, i.e., you’d like to still be included in the tour, no worries, let’s see what can be done, simply contact JFrog’s Ari Waller (ariw at jfrog dot com), Foojay’s Event Manager, and specify a date and time (and preferred topics ) for March or April.

"Foojay: A Place for Friends of OpenJDK" - ADT Magazine

Thu, 04 Feb 2021 13:56:00 +0000

Today, published by John K. Waters in ADT Magazine :

Azul, Datadog, DataStax, JFrog, Payara, Snyk on Foojay Advisory Board

Thu, 28 Jan 2021 13:56:10 +0000

SUNNYVALE, Calif., January 28, 2021 – Foojay.io, the community site for developers who use, target, and run their applications on top of Java and OpenJDK, today named the companies who will make up its advisory board—Azul, Datadog, DataStax, JFrog, Payara, and Snyk. The board will guide the direction, content and oversight of Foojay.io with the goal to grow the community and meet its mission to provide free information for everyday Java developers.

Announcing the Upcoming Virtual Foojay JUG Tour!

Tue, 26 Jan 2021 08:03:51 +0000

To celebrate the OpenJDK and Foojay.io as a community platform for its users, we’re kicking off the Virtual Foojay JUG Tour. Ari Waller, JFrog’s Event Manager, well known to many JUGs, now wears a second hat—that of Foojay Event Manager. During March and April, contributors to Foojay will be making a whistle stop tour through as many JUGs as possible, via their virtual meetups! (And if you’re not holding virtual events or don’t have the facilities for this, we can support by making these available as needed.)

Preview of January 2021 OpenJDK Update Release

Wed, 13 Jan 2021 09:12:00 +0000

On the Tuesday closest to the 17th day of January, April, July, and October under the normal Oracle Critical Patch Update schedule, a new quarterly OpenJDK update is made available.

For the January 2021 update, set to be released next week, a preview list of the fixes that will be in that update is available from today on foojay.io, on the frontpage, you’ll see a new button providing you access to the preview list:

Friends of OpenJDK Schedule at FOSDEM 2021

Thu, 07 Jan 2021 16:49:23 +0000

Subject to change, here’s the schedule for FOSDEM 2021, which will be a virtual event this year on 6 and 7 February, for the Friends of OpenJDK devroom, featuring a range of great speakers on a variety of interesting topics related to the usage of Java in the real world.

Link to the program is here:

https://fosdem.org/2021/schedule/track/friends_of_openjdk

What Are Your Java Predictions, Hopes, and Dreams For 2021?

Wed, 30 Dec 2020 09:03:00 +0000

To celebrate the world of Java and predict our highlights for 2021, several key Foojay participants have been sharing their thoughts and hopes over the past days on Foojay, starting with Frank Delporte, Foojay Community Manager for the Raspberry Pi , continuing with Jadon Ortlepp, Foojay Community Manager for Microservices , and now wrapping up with a list of brief predictions from a wide variety of other leading members of the Java community.

Join Friends of OpenJDK at FOSDEM 2021

Thu, 17 Dec 2020 15:31:43 +0000

Over the last two years at FOSDEM —the free event for software developers, many of them in the open source ecosystem, for meeting, sharing ideas and collaborating—one of the developer rooms has been focused on short presentations dealing with demos and overviews of free tools and editors.

The programs for 2020 and 2019 are listed below:

https://archive.fosdem.org/2020/schedule/track/free_tools_and_editors

https://archive.fosdem.org/2019/schedule/track/free_tools_and_editors

You can see in the above that the room was organized by developers connected to, in particular, Eclipse, IntelliJ IDEA, and NetBeans.

Apple Silicon with Zulu OpenJDK and IntelliJ IDEA

Thu, 26 Nov 2020 09:01:34 +0000

Azul has been leading the OpenJDK community effort (JEP 391 ) initiated in August 2020 to add support for Apple Silicon, Arm-based Macs, in future versions of OpenJDK.

In addition to targeting future Java versions, Azul has made OpenJDK builds of currently popular Java versions, including Zulu builds of OpenJDK 8, 11, and 13, as well as 16-ea, widely available for use on Apple Silicon, Arm-based Macs.

In June 2020, Apple announced a two-year plan to transition the CPUs in its Macintosh line of computers from Intel’s x86-64 processors to Apple-designed chips that use the ARM64 architecture. At its “One More Thing” event on November 10 2020, Apple followed through on its promise and debuted new MacBook Air, MacBook Pro and Mac Mini Arm-based models powered by Apple Silicon.

"Foojay - All About Java and the OpenJDK" -- I Programmer

Mon, 02 Nov 2020 14:07:00 +0000

Today, published by Nikos Vaggalis on I Programmer :

What's New, Noteworthy, and Enhanced in Java 15?

Thu, 17 Sep 2020 19:35:08 +0000

Now that Java 15 has been released, let’s take a look at what’s new!

Here on foojay , the fixes that went into the release are listed, giving you a unique and readable changelog in helpful categories, with the invitation for you to vote on those that are most relevant to you:

New Features

JVM

Disable and Deprecate Biased Locking ( JEP 374 )
ZGC ( JEP 377 )
Shenandoah GC ( JEP 379 )
Remove the Solaris and SPARC Ports ( JEP 381 )

Language

Pattern Matching for instanceof Preview ( JEP 375 )
Text Blocks ( JEP 378 )
Records Preview ( JEP 384 )

API

Edwards-Curve Digital Signature Algorithm (EdDSA) ( JEP 339 )
Sealed Classes Preview ( JEP 360 )
Hidden Classes ( JEP 371 )
Remove the Nashorn JavaScript Engine ( JEP 372 )
Reimplement the Legacy DatagramSocket API ( JEP 373 )
Foreign-Memory Access API (Second Incubator) ( JEP 383 )
Deprecate RMI Activation for Removal ( JEP 385 )

Go here for foojay’s almanac of all the info about where to go to download Java 15, including a comparison of Java 15 APIs versus those from previous releases: foojay.io/almanac/jdk-15

Facelift and Redesign for Foojay Homepage | foojat

Fri, 11 Sep 2020 18:20:40 +0000

The site you’re on, foojay.io, has had a bit of a facelift over the past week.

Now you can see directly on the homepage all the key pieces that make up foojay, a place for friends of OpenJDK… especially its focus on the integrated services provided by Marc Hoffmann’s Java Version Almanac andChris Newland’s JVM Options Explorer , supported by the OpenJDK Update Release Details , together with Foojay Today and the start of Foojay Pedia .

Interview: Frank Delporte, Foojay Raspberry Pi Community Manager

Mon, 07 Sep 2020 13:20:38 +0000

Today we’d like to introduce a new community manager for all things Raspberry Pi on foojay: Frank Delporte!

Welcome, Frank! Tell us about yourself. 🙂

Hi, I’m Frank Delporte, living in Belgium. I started programming when I was 10 on my Commodore 64.

I started my professional career as a video editor for television, 25 years ago. I went through all stages from video, multimedia, websites to back-end development using different technologies.

Interview: Chris Newland & Java Command Line Switches

Mon, 31 Aug 2020 07:12:40 +0000

We’re happy to announce that we’re hosting Chris Newland’s VMOptionsExplorer right here on foojay , providing all details per release on Java command line switches.

It also shows a diff between the currently selected release and the previous release, showing a tab for the switches that have been added and those that have been removed.

Go here to take a look, yourself: https://foojay.io/command-line-arguments/openjdk-11 .

Let’s meet Chris, here’s a quick interview with him about his Java command line switches integrated into foojay!

Interview: Marc Hoffmann and Java Version Almanac

Tue, 25 Aug 2020 06:39:44 +0000

From this week, we’re happy to announce that we’re hosting Marc Hoffmann’s Java Version Almanac right here on foojay , providing details per release on OpenJDK distributions, new features, and differences between APIs across releases.

It also shows differences between the APIs of the currently selected Java release and all previous releases, handy when you’re upgrading!

Go here to take a look, yourself: http://foojay.io/almanac/jdk-8

And, let’s meet Marc, here’s a quick interview with him about the Java Version Almanac**!**

OpenJDK Update Release Details Dashboard

Fri, 01 May 2020 14:59:00 +0000

Java is a well-maintained development and deployment platform. Through the OpenJDK project , regular updates to production releases follow a traditionally established schedule. On a specific Tuesday in January, April, July and October, a set of updates are published covering security-related issues as well as bug fixes and even minor enhancements. Regular updates have been a long-standing tradition for Java. The update cadence has been a long-standing tradition for Java and is relied on by those responsible for ensuring Java-based systems are kept up to date and secure.

foojay: A Place for Friends of OpenJDK

Sat, 25 Apr 2020 15:09:00 +0000

Welcome to foojay, a place for f riends o f O penJ DK, sponsored by Azul . Foojay’s user-focused Java and OpenJDK technical dashboards provide free data for everyday Java developers. Right away you have access to updated analysis, selected highlights, and categorized lists arranged for easy consumption.

Java Technologist Dashboards

Together with Java enthusiasts around the world, the foojay team works to identify critical aspects of each new OpenJDK release and update – with related information such as OpenJDK distributions, download locations, and JVM command line arguments – and brings to the fore precisely the content and services that have value and relevance to those that use Java on a daily basis throughout the industry. OpenJDK Update Release Details