Java Events

Title: Your Java Code in the Fastlane: Creating a Million Virtual Threads Using Project Loom to Improve Throughput | 

Abstract:

Project Loom introduces virtual threads, lightweight threads that aim to dramatically reduce the effort of writing, maintaining, and monitoring high-throughput concurrent applications with the Java platform.

We need threads to achieve high throughput. However, threads are not cheap and are limited in number. To get around this problem, various alternatives, such as the reactive programming style, have emerged. These techniques bypass creating a lot of threads at the expense of more difficult debugging. This makes developers grumpy. However, with virtual threads, we get the best of both worlds, cheap, lightweight threads and easy debugging, which would make developers happy again.

This talk will explore what virtual threads are, how they are implemented, how they solve our modern problems and what, if any, shortcomings there are.

Agenda

18:00 Door opens
18:30 Food arrives 🍕🍻 (Thanks Booking.com for hosting us)
19:00 Talk 1 starts: "Java on CRaC: Lightning Fast JVM Startup"- Gerrit Grunwald (Java Champion)
19:45 short break
20:00 Talk 2 starts: "Memory Management in Java" - Manuel Naranjo
20:45-21:30 drinks & networking

(program TBD)  |  Register

jPrime is a conference with talks on Java, various languages on the JVM, mobile, web, and best practices.  It's run by the Bulgarian Java User Group and backed by the biggest companies in the country.

jPrime features a combination of great international speakers along with the best presenters from Bulgaria and the Balkans. It is divided into two tracks and provides great opportunities for learning, hacking, networking, and fun.

We are very pleased to welcome Karsten Thomas with the following topic (online via Zoom):

Eclipse IDE - Alive and Kicking ?

Answers to the question of which IDE (Java) developers prefer sometimes seem almost religious in nature. There is no question that IntelliJ IDEA is now the top dog. Eclipse has changed little in terms of its basic appearance over the years and looks at least a bit dusty on the outside. A facelift would definitely be a good thing. But is their sometimes bad reputation justified?

Admittedly, I've worked almost exclusively with Eclipse in the past and, like everyone else, I'm a bit biased. In the last two years, on the other hand, I have been working almost exclusively with IntelliJ in my projects. And yes, I like quite a few things about it and would like to see one or two in Eclipse as well. And yet Eclipse still offers its advantages. As always, it always depends on the nature of the projects which tool is a better choice.

The Eclipse IDE is now over 20 years old. At the core, there are many sources that go back to this time and it is like this project that existing APIs cannot be radically changed. This sometimes gets in the way of innovation, and yet there is continuous evolution in this project.

In this session, I want to give you a fresh look at the open-source development environment. I'll show you a few useful features that have been added in the past releases. And some significant changes are not directly visible as UI features. In addition, I will make some comparisons with other IDEs, specifically IDEA and VSCode, showing some desirable improvements.

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Process:
1930h get together - exchange on current topics
1945h Eclipse IDE - Alive and Kicking ?
2100h official end

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Speakers:
Karsten Thoms works as a senior software engineer for Karakun GmbH in Dortmund. Karsten has been working with Java since version 1.0 and over the years has gained experience in the development of Java-based systems, especially in the areas of enterprise applications and integrated toolchains. Over the years he was particularly involved in the development of model-based tools and contributed to the development of the language development framework Xtext. This gave rise to an interest in getting involved in the development of the Eclipse IDE, for which he has been a committer for several years, as long as the current projects allow it.

In his current projects, he is again using the typical enterprise technologies, mostly on the SpringBoot stack, and feels comfortable there.

==========================================

Wir freuen uns sehr Karsten Thomas mit folgendem Thema begrüßen zu dürfen (online via Zoom):

Eclipse IDE - Alive and Kicking ?

Antworten auf die Frage danach, welche IDE (Java) Entwickler bevorzugen, wirken machmal schon fast religiöser Natur. Keine Frage, IntelliJ IDEA ist mittlerweile sicher der Platzhirsch. Eclipse hat sich vom grundlegenden Aussehen über die Jahre her wenig verändert und wirkt äußerlich zumindest etwas angestaubt. Ein Facelifting würde da sicher mal gut tun. Doch ist ihr teilweise schlechter Ruf gerechtfertigt?

Zugegeben, ich habe in der Vergangenheit quasi ausschließlich mit Eclipse gearbeitet und bin wie alle etwas voreingenommen. Die letzten beiden Jahre arbeite ich dagegen in meinen Projekten fast ausschließlich mit IntelliJ. Und ja, ich mag einiges daran und würde mir das eine oder andere auch in Eclipse wünschen. Und dennoch bietet Eclipse auch so seine Vorzüge. Wie immer kommt es auch immer auf die Natur der Projekte an, welches Tool eine bessere Wahl ist.

Die Eclipse IDE ist nun über 20 Jahre alt. Im Kern finden sich viele Sourcen, die so noch auf diese Zeit zurück gehen und es liegt in der Natur dieses Projekts, dass bestehende APIs nicht radikal verändert werden können. Das steht der Innovation manchmal etwas im Weg, und dennoch findet eine kontinuierliche Evolution in diesem Projekt statt.

Ich werde in dieser Session möchte ich euch nun einen frischen Blick auf die quelloffene Entwicklungsumgebung geben. Dabei zeige ich euch ein paar nützliche Features, die in den vergangenen Releases hinzugekommen sind. Und manche signifikante Änderung ist nicht direkt als UI Feature sichtbar. Darüber hinaus werde ich ein paar Vergleiche anderen IDEs, speziell IDEA und VSCode, ziehen und damit ein paar wünschenswerte Verbesserungen aufzeigen.

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Ablauf:
1930h get together - Austausch zu aktuellen Themen
1945h Eclipse IDE - Alive and Kicking ?
2100h offizelles Ende

----
Speaker:
Karsten Thoms arbeitet als Senior Software Engineer für die Karakun GmbH in Dortmund. Karsten arbeitet mit Java seit Version 1.0 und hat über die Jahre Erfahrung in der Entwicklung Java basierter Systeme speziell in den Bereichen Enterprise Applikationen und Integrierte Werkzeugketten gesammelt. Über die Jahre war er insbesondere in der Entwicklung von modellbasierten Werkzeugen involviert und hat an der Entwicklung des Language Development Frameworks Xtext mitgewirkt. Darüber entstand das Interesse, sich in die Entwicklung der Eclipse IDE einzubringen, für die er seit mehreren Jahren als Committer tätig ist, sofern es die aktuellen Projekte ermöglichen.

In seinen aktuellen Projekten ist er wieder mehr mit den typischen Enterprise Technologien unterwegs, meist auf dem SpringBoot Stack, und fühlt sich dort auch wohl.

(program TBD)  |  Register

Devoxx UK is a 3-day conference where developers come together to explore the latest technology advancements and fascinating ideas, with some of the most inspiring speakers in our sector.

Diverse, local, and global talent introduce the newest and most vital content from the development world, with a range of sessions covering Java, Cloud, Data, AI, Robotics, Programming Languages, Security, Architecture, Developer Practices, and Culture.

Attend Devoxx UK to expand your knowledge base, sharpen your skills and get hands-on experience with the latest technologies.

Each year the Devoxx Family welcomes over 13,000 developers to events in Belgium, France, the UK, Poland, Morocco & now, Ukraine.

Struggling to keep up with technology, or feeling overwhelmed with so many things to learn? Do you feel you are a competent developer, but you don't see the results in your career? Maybe you feel like you don't belong or that you are not good enough?

Those are common symptoms, you are not alone! This talk will show you what's behind those feelings, why you can't keep up, and how to solve that. Come learn what the last 10 years of brain science has shown about our career and what the best developers do differently. Discover the exact skills you need to have to grow, and how to apply them in your project today. Become a better Java developer, create unlimited growth and forge your own path to success.

(program TBD)  | Register

QCon Plus brings together the world’s most innovative senior software engineers across multiple domains to share their real-world implementation of emerging trends and practices.
Find practical inspiration (not product pitches) from software leaders deep in the trenches creating software, scaling architectures and fine-tuning their technical leadership to help you make the right decisions.

View the program  |  Register

Nearly all talks are in German. Only a handful are in English.

Boost your Java skills
For over 15 years, JAX has provided valuable, practical know-how about the world’s most popular programming language. Learn from leading experts how to make your Java projects a success.

Experience Software Architecture
Enterprise Java, Spring, Microservices, DevOps, Cloud – discover how technological innovations can be integrated into overall contexts to build sustainable and future-proof IT systems.

Understand Trends
What is behind the current trends like JavaScript, machine learning, blockchain & serverless? Understand the background and learn how to implement innovations into your projects.

View the program  |  Register

Jfokus is Sweden's biggest Java conference. It goes back to 2007.

View the program  |  Register

Devnexus is the annual conference of the Atlanta JUG. It is one of the biggest Java conferences in the US.

In this webinar collaboration by Payara and AtomicJar, you will learn about the best practices for integration testing for Jakarta EE applications.

One major issue when developing modern enterprise applications is the "works on my machine" problem: when an application works well on your machine but is not functional in production or even on a colleague's machine. An even more prevalent problem is to maintain the quality of ever-changing applications during development and maintenance.

This is especially prevalent when Jakarta EE applications are developed and not properly tested in an isolated and cohesive manner. Proper integration testing helps to avoid both the "works on my machine" problem, and ensures developers can change the application effectively without breaking it. However often teams struggle with it, due to a lack of standardized testing solutions and the unpredictability of real-world conditions.

Payara Service Manager Fabio Turizo and AtomicJar Lead Developer Advocate Oleg Šelajev present an effective method for Jakarta EE integration testing, using Payara Platform and Testcontainers.

(program TBD)  |  Register

QCon London is a conference for senior software engineers, architects, and team leads. Deep-dive with world-class software leaders on the patterns, practices, and use cases leveraged by the world’s most innovative software professionals.

Join us as we take a deep dive into the world of Observability for developers and explore:

✓ Why debugging in production Is not a problem, but rather the solution
✓ Tips & Tricks for reducing incident MTTR (Mean Time To Resolve)
✓ How progressive delivery can connect developers to their live applications
✓ What a shift-left future looks like for the modern R&D teams
✓ And So Much More!

View the program  | Register

Most of the 135 talks are in German, about 35 are in English.

This is Germany's biggest Java conference. You can look forward to two eventful days with plenty of lectures, community activities, workshops, an exhibition, exchange, and networking with a unique amusement park flair. There will be a training day on the third and last day of the conference.

The lecture program is online. Please browse through our schedule and discover more than 130 presentations of international speakers around your favorite topic. The training day topics and community activities are available as well.

We are very happy to welcome Marcus Noerder-Tuitje with the following topic (online via Zoom):

Hitchhikers Guide to the Java Performance

If the developed software does not meet the performance requirements or even runs unstable, then the causes must be analyzed quickly. The many Java profiling and analysis tools can help here. But what is an effective approach to avoid poking around in the fog for days on end? How, for example, are GC logs created and analyzed? How do I find memory leaks in heap dumps before the server runs out of steam? How are thread dumps interpreted and do dead locks or thread content problems exist? Are SQL hotspots or transaction locks slowing down my application? This session will show how to systematically get an overview of the runtime behavior of an application in order to then be able to go into detailed analysis.

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Procedure:

We will post the link to the online meeting (Zoom) on the day of the meetup.

1930h get together - exchange on current topics

1945h Hitchhikers Guide to the Java Performance

2100h official end

----

Speaker:
Marcus Nörder-Tuitje is an IT consultant and founder of CROWDCODE. He advises companies on the design of distributed system architectures and the conception of continuous delivery processes as well as the specification for offshore development. He is responsible for the design and implementation of web, mobile and cloud applications as well as data warehousing systems in heterogeneous environments. His technical focus is on the analysis and conception of architectures, the specification of systems and the support of the implementation - onsite as well as offshore. As a lead developer, he actively supports teams during implementation. As a coach and trainer, he advises teams on the use of Java EE and Spring technologies and their efficient integration into the individual development process.

Wir freuen uns sehr Marcus Noerder-Tuitje mit folgendem Thema begrüßen zu dürfen (online via Zoom):

Hitchhikers Guide to the Java Performance

Wenn die entwickelte Software nicht den Performance-Ansprüchen genügt oder gar instabil läuft, dann müssen zügig die Ursachen analysiert werden. Hierbei helfen die vielen Java-Profiling- und -Analysewerkzeuge. Aber welches ist eine effektive Vorgehensweise, um nicht tagelang im Nebel zu stochern? Wie werden zum Beispiel GC-Logs erstellt und analysiert? Wie finde ich Memory Leaks in Heap Dumps, bevor dem Server die Puste ausgeht? Wie werden Thread Dumps interpretiert und existieren eventuell Dead Locks oder Thread-Content-Probleme? Bremsen eventuell SQL-Hotspots oder Transaktionssperren meine Anwendung aus? In dieser Session wird gezeigt, wie man sich systematisch einen Überblick über das Laufzeitverhalten einer Anwendung verschafft, um anschließend gezielt in die Detailanalyse gehen zu können.

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Ablauf:

Den Link zum Online Meeting (Zoom) posten wir am Tag des Meetups

1930h get together - Austausch zu aktuellen Themen

1945h Hitchhikers Guide to the Java Performance

2100h offizelles Ende

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Speaker:
Marcus Nörder-Tuitje ist IT-Berater und Gründer von CROWDCODE. Er berät Unternehmen bei der Gestaltung von verteilten Systemarchitekturen und der Konzeption von Continuous Delivery Prozessen sowie der Spezifikation für Offshore-Entwicklung. Er ist für die Konzeption und Realisierung von Web-, Mobile- und Cloud-Anwendungen sowie Data Warehousing-Systeme in heterogenen Umgebungen verantwortlich. Sein fachlicher Schwerpunkt liegt in der Analyse und Konzeption von Architekturen, der Spezifikation von Systemen und der Betreuung der Umsetzung – onsite wie offshore. Als Lead Developer unterstützt er Teams bei der Realisierung tatkräftig. Als Coach und Trainer berät er Teams beim Einsatz von Java EE- und Spring-Technologien sowie deren effiziente Einbindung in den individuellen Entwicklungsprozess.

View the program  |  Register

Join for no less than 16 sessions about the present and the future of the Java technology stack – Core, Server-side, Cloud-Native Java, Architecture, Cloud Platforms, and much more. A dedicated Slack channel will allow you to interact with the speakers, ask questions and gather with your peers. We pride ourselves on serving full HD quality and professional video editing.

While more than 26 years old, Java is still one of the top three most popular programming languages.

Its popularity extends beyond the syntax of the language to the power of the Java Virtual Machine (JVM).  By handling internet-scale workloads, the JVM delivers the performance required for mission-critical enterprise applications.

Join our panel to hear:

• - a discussion about the current and future state of the Java core platform, JDKs and enterprise Java development
• - about JDK 17 and 18, Cloud migration strategies, and log4j

Webinar Details:

• Thursday, February 10, 2022
• at 10am GMT | 11am CET
• or 11am PT | 2pm ET

Can't make the date? Register and we'll send you the replay afterward.

The Foojay devroom at FOSDEM is an opportunity for developers in the OpenJDK users domain to meet, discuss the current state of their projects, and their roadmaps, while also helping others to understand the state of these interrelated projects.

Please join us to see and share the range of tools and technologies actively being developed on and used with the OpenJDK.

Onwards to a united approach to helping developers get the most out of the OpenJDK!

The J Champions Conference will run for four days in January 2022 on Thurs 1/20, Fri 1/21, Mon 1/24, & Tues 1/25. The J Champions Conference will run for four days in January 2022 on Thurs 1/20, Fri 1/21, Mon 1/24, & Tues 1/25. Rather than trying to run like a traditional in person event, each day will feature 7 sessions. Sessions will begin at 9:00 EST and end at 17:00 EST. After each session there will be time for participants to speak with the presenters.

We live in times when an application or service lag of even 2 seconds can be too long. Building a reliable Cloud Native distributed system means preventing failures and minimizing their effects to keep the system stable. Join me to explore graceful recovery from unexpected scenarios using live coded examples of the well-known circuit breaker and retry patterns at the application level and complement those in the infrastructure (Kubernetes) with service discovery, load balancing, and load shedding patterns.

Speaker: Ana Maria Mihalceanu is a Java Champion, Developer Advocate, co-founder of Bucharest Software Craftsmanship Community, and a constant adopter of challenging technical scenarios involving Java-based frameworks and multiple cloud providers. She is an active supporter of technical communities growth through knowledge sharing and enjoys curating content for conferences as a program committee member.

ArchConf 2021 is a one of a kind education event for software architects and technical leads/developers.

Presented to you by the No Fluff Just Stuff Software Symposium Series.

JavaZone – the biggest European community-driven conference for modern developers will be 20 years old in 2021! Don’t miss out on two days of inspiring tech talks, a day of hands-on sessions, mingling, and a great party!

JavaZone is organized by javaBin, the Norwegian Java User Group. Our goal is to organize a community-driven conference for Java developers where they can learn new things, share knowledge, and socialize.

JakartaOne Livestream is a one-day virtual conference for developers and technical business leaders. We bring insights into the current state and future of Jakarta EE and related technologies focused on developing cloud native Java applications.

On December 7th, Lightrun will host a free master class with Mykyta Protsenko, Senior Software Engineer at Netflix; Michael Wood, Field CTO, HashiCorp; Ryan Menezez, Software Engineering Manager, Meta; and Leonid Blouvshtein, CTO of Lightrun.

We are delighted to welcome Falk Sippach with the following topic (online via Zoom, talk in German):

Java 17 - What can we expect in the latest LTS version?

For several years now, new Java major releases have been coming out every six months. This procedure has established itself and works amazingly well. Of course, you can't expect the feature set of the earlier versions (9 and older). But as a developer you get the latest changes much more regularly. In the preview phases, you can even give feedback and thus help shape the active further development of Java. Long-term support versions are also released every three years, which are supplied with updates and patches for longer. In September 2021 with the version 17 such a LTS release came out again, for which in the last 3 years a lot of interesting new functions were developed:
* Switch Expressions
* Text Blocks
* Pattern Matching for instanceof
* Helpful NullPointerExceptions
* Records
* Sealed Classes
* and some more
In this talk, we'll also look at helpful API improvements and changes to the JVM, such as garbage collectors. If you are not yet at Java 11 or higher, this will also give you a compact overview of how Java currently feels.

Procedure:

1930h get together - exchange about current topics
1945h Java 17 - What can we expect in the latest LTS version?
2100h official end

Speaker:

Falk Sippach is a software architect, consultant and trainer at embarc Software Consulting GmbH, always on the lookout for that spark of passion that he can ignite in his participants, customers and colleagues. He has been supporting mostly agile software development projects in the Java environment for over 15 years. As an active part of the community (co-organizer of the JUG Darmstadt) he also likes to share his knowledge in articles, blog posts, as well as in presentations at conferences or user group meetings and supports the organization of various professional events.

https://sippsack.de/

***** GERMAN

Wir freuen uns sehr Falk Sippach mit folgendem Thema begrüßen zu dürfen (online via Zoom):

Java 17 - Was erwartet uns in der neuesten LTS-Version?

Seit einigen Jahren kommen nun schon halbjährlich neue Java Major-Releases heraus. Dieses Vorgehen hat sich etabliert und funktioniert erstaunlich gut. Natürlich dürft Ihr nicht den Funktionsumfang von den früheren Versionen (9 und älter) erwarten. Dafür bekommt Ihr als Entwickler aber viel regelmäßiger die aktuellen Änderungen mit. In den Preview-Phasen kann sogar Feedback gegeben und somit die aktive Weiterentwicklung von Java mit gestaltet werden. Alle drei Jahre erscheinen zudem Long-Term-Support-Versionen, die länger mit Updates und Patches versorgt werden. Im September 2021 ist mit der Version 17 wieder ein solches LTS-Release herausgekommen, für welches in den letzten 3 Jahren jede Menge interessante neue Funktionen entwickelt wurden:
* Switch Expressions
* Text Blocks
* Pattern Matching für instanceof
* Helpful NullPointerExceptions
* Records
* Sealed Classes
* und noch einiges mehr

In diesem Vortrag betrachten wir außerdem hilfreiche API-Verbesserungen und Änderungen an der JVM, z. B. bei den Garbage Collectoren. Falls Ihr selbst noch nicht bei Java 11 oder höher angekommen seid, bekommt Ihr damit auch einen kompakten Überblick, wie sich Java aktuell anfühlt.

Ablauf:

1930h get together - Austausch zu aktuellen Themen

1945h Java 17 - Was erwartet uns in der neuesten LTS-Version?

2100h offizelles Ende

Speaker:

Falk Sippach ist bei der embarc Software Consulting GmbH als Softwarearchitekt, Berater und Trainer stets auf der Suche nach dem Funken Leidenschaft, den er bei seinen Teilnehmern, Kunden und Kollegen entfachen kann. Bereits seit über 15 Jahren unterstützt er in meist agilen Softwareentwicklungsprojekten im Java-Umfeld. Als aktiver Bestandteil der Community (Mitorganisator der JUG Darmstadt) teilt er zudem sein Wissen gern in Artikeln, Blog-Beiträgen, sowie bei Vorträgen auf Konferenzen oder User Group Treffen und unterstützt bei der Organisation diverser Fachveranstaltungen.
https://sippsack.de/

Join the major developer's conference in Latin America.

JFrog is holding a FREE hands-on workshop called DevSecOps for Java & Kotlin Developers on November 24 at 10AM GMT+1.

Google Slide: https://docs.google.com/presentation/d/1oj51PTP2wFz-CBoIz4axxn071I6hHGSXAyzmBNMGfuc/edit?usp=sharing

Join Nicolas Fränkel (Hazelcast developer advocate) and Rudy De Busscher (Payara Project Manager) for an informative and practical webinar on how to query your Hazelcast Data with SQL within Payara Micro.

The Hazelcast In-Memory Data Grid is an efficient way of storing data in a distributed way within the memory of the different processes of the cluster. The distributed design, however, means that searching the data locally in your process is not efficient. All data needs to be ‘moved’ to your instance so that it can be accessed. Hazelcast allows distributed queries so that the search is performed where the data is, and only the results are transferred to your process. With Hazelcast SQL, the Distributed Query capabilities are wrapped in another well-known concept by developers and easier to use. Since the Payara products already use Hazelcast IMDG, using the Hazelcast SQL capabilities is straightforward. You only need to add the additional JAR library and can start using it.

Questions are encouraged and we will be saving time towards the end of the session to answer any queries you might have.

OpenJDK 17 is here, with a range of new features and enhancements. Join in with the friends of OpenJDK, who provide a free central resource for all things Java at Foojay.io, in celebrating the OpenJDK on the Foojay Virtual OpenJDK 17+ JUG Tour, including at KnoxJava with Carl Dea!”

THE BIGGEST JAVA CONFERENCE OF THE NETHERLANDS

NOVEMBER 4, 2021 | PATHÉ EDE

The Masters of Java is a famous fun progging contest (based on Java SE), which is accessible to every Java developer. This competition does not test the API knowledge, but the real programming skills. In previous editions, Masters of Java has already produced a lot of heated battles. We hope to see a lot of fireworks again this year. In every round, a fun or interesting programming assignment is handed out, which must be solved within half an hour. You score a point for every second you have left.

Teams consist of a maximum of two developers and the team with the most points at the end of the day may call themselves “Master of Java 2021”. Besides eternal fame, you can win beautiful and spectacular prizes.

Devoxx UK is a 3-day conference where developers and architects come together and explore the latest technology advancements and fascinating ideas, with some of the most inspiring speakers in our sector.

Diverse, local and global talent introduce the newest and most vital content from the development world, with a range of sessions covering Java, Cloud, Big Data, AI, Robotics, Programming Languages, Security, Architecture, Methodologies and Developer Culture.

Come to Devoxx UK to expand your knowledge base, sharpen your skills and get hands-on experience with the latest technologies.

Each year the Devoxx Family welcomes over 13,000 developers to events in Belgium, France, UK, Poland, Morocco & now, Ukraine.

Dash is an annual conference about building and scaling the next generation of applications, infrastructure, and technical teams.

The conference brings together engineers across dev, ops, and security who are taking their systems and organizations to the next level of velocity, performance, reliability, and scale.

In this talk, we'll go over their use cases, how they can make shipping Java apps easier, and what’s required to adopt them. We’ll begin with the foundations and build towards the latest advances making their way into the community.

The intended audience is a Java developer or dev ops person at any level.

SnykCon is a free developer conference that brings development and security teams together to build software securely.

Bringing together cutting edge software engineers and enterprise-level professionals innovating in the fields of JAVA, microservices, continuous delivery and DevOps.

If everyone is using the same source, then all distributions will be the same, surely? Well, that's not guaranteed: even something as simple as a change in the version of a compiler could significantly impact how the executable works.

Did you know that the Raspberry Pi is also a perfect match for running the latest JavaFX user interface applications or FXGL games? Combined with the Pi4J library, you can even do things which aren’t possible with your expensive developer computer: blink a LED, read sensor values, and control all types of electronic components.

OpenJDK 17 makes the interesting decision that deprecating a security feature (the SecurityManager) can actually improve security of the platform and running applications, setting out a path to remove a feature that hasn’t been used and hasn’t blocked many exploits.

Pattern matching in Java is almost complete now! OpenJDK 16 added support for pattern matching in the instanceof operator and now this can be used in switch cases to perform idiomatic pattern matching, as in many other modern languages.

New to OpenJDK 17 is the Foreign Linker API (JEP 389) as a replacement for JNI to provide a pure-Java solution and perform comparable to, or better than, JNI.

With the release of OpenJDK 17, all OpenJDK distributions will be providing long-term support (LTS) for this version of the Java platform. Many Java users currently running on OpenJDK 8 or OpenJDK 11 will want to migrate their production environments to OpenJDK 17. This will enable them to take advantage of the numerous new features and enhancements made possible by the six-month release cadence introduced in 2017.

In this session, we explain the major differences between classical computing and quantum computing. We discuss how Java can be used to create quantum applications, and we talk about potential improvements in Java bytecode that could leverage quantum concepts.

OpenJDK 17 makes the interesting decision that deprecating a security feature (the SecurityManager) can actually improve security of the platform and running applications, setting out a path to remove a feature that hasn’t been used and hasn’t blocked many exploits.

Let's explore the current state and future of Jakarta EE, the technology platform formerly known as Java EE. We will include a high level feature tour of the current version, Jakarta EE 9. We will also discuss how the community can contribute to Jakarta EE.

In this session, we'll show real-time data synchronization between clients and between clients and a Cloud service; remote function invocation, where a client invokes a serverless function in a serverless container; data processing on a backend system, real-time connected with a user interface on a client.

We’ve partnered up with Snyk and some other amazing local communities across the UK & Europe to bring you a week-long virtual event aimed at bringing development, operations, and security teams together to meet, learn, and collaborate on the best and brightest approaches to secure development.

With the release of OpenJDK 17, all OpenJDK distributions will be providing long-term support (LTS) for this version of the Java platform. Many Java users currently running on OpenJDK 8 or OpenJDK 11 will want to migrate their production environments to OpenJDK 17. This will enable them to take advantage of the numerous new features and enhancements made possible by the six-month release cadence introduced in 2017.

Five content tracks, electric speakers, and interactive workshops, all focused on building scalable apps in a world that never stops changing.

OpenJDK 17 is around the corner, with a range of new features and enhancements. Join in with the friends of OpenJDK, who provide a free central resource for all things Java at Foojay.io, in celebrating the OpenJDK on the Foojay Virtual OpenJDK 17+ JUG Tour, including at the Manchester JUG with Frank Delporte!

Want to learn more about the Jakarta NoSQL specification? Mike Redlich will demo how to get started using the specification and MongoDB.

The Jakarta NoSQL specification defines a set of APIs to provide a standard implementation for most NoSQL databases. Jakarta NoSQL is considered "one API for many NoSQL databases" as it supports the four types of NoSQL databases: key-value, column family, document and graph.

This presentation will provide an introduction to Jakarta NoSQL and Eclipse JNoSQL, the compatible implementation to the specification, followed by a demonstration of a MongoDB application built with Jakarta NoSQL.

Speaker: Billy Korando - Java Developer Advocate with the Java Platform Group at Oracle

Automated testing is a crucial step in modern software development. A quality automated test suite enables rapid development and deployment practices like CI/CD by providing a stable quality check before an application is delivered to the world.

But how do you write a quality automated test suite in Java? In this presentation, we will look at the practices and principles for writing reliable, accurate, and portable tests and how they can be implemented using modern automated testing frameworks and libraries, including; JUnit 5, Mockito, Test Containers, and others. With this knowledge, you can become an automated testing superstar and help your team get to production faster!

Speaker: Billy is a Java Developer Advocate with the Java Platform Group at Oracle. With over a decade of experience in Java, Billy brings a passion for helping developers find ways to reduce tedious work, such as project initiation, deployment, testing, and validation, through automation and adopting the latest features and tools in the Java ecosystem. Outside of work, Billy enjoys traveling, playing kickball, and cheering on the Kansas City Chiefs. Billy also co-organizes the Kansas City Java users group.

Do you have a private project, an open-source tool, or want to do a POC? Do you already have the idea in mind and you wish to get started? Are you looking for a suitable environment so that you get the best possible support for your development? JFrog offers you just the right tools for this and access to the JFrog Platform is free! With Artifactory, Xray, and more, a complete DevSecOps environment is at your disposal.

In this workshop, I will show you the individual components step by step and help you set them up for your project. This workshop is divided into several parts, and each deals with a specific section of the development. In the basic module, we will set up a Java project based on maven consisting of one module so that you can get started.

As developers, we love our tools and our productivity! IntelliJ IDEA is designed to enhance your productivity not only by providing an environment for developing software but also by serving as a framework for enhancing your experience of the IDE itself. You can do more with IntelliJ IDEA than just customize the themes and code style settings. Whether by automating routine tasks or adding custom language support, you can extend its capabilities to suit the needs of your unique workflow.

In the first half of the session, we’ll explore the benefits provided by IntelliJ IDEA’s customization options, and you will learn how to make the IDE your own. We will also look at the plugins available on JetBrains Marketplace, discuss the process of developing them, and demo a few custom plugins.

In the second half of the session, we will create an IntelliJ plugin together! We will also build and test the plugin and also install it in your IntelliJ IDE so you can use it daily! By the end of this session, you will learn how to build plugins and you can start the journey of building plugins on your own.

Software to install on your computer before the workshop:

• Java 8 or 11
• IntelliJ IDEA Community or IntelliJ IDEA Ultimate

We'll be raffling copies of IntelliJ Ultimate during the workshop!

Speaker: Sirisha Pratha works as a Java developer in a financial institution. She has been programming in Java using IntelliJ IDEA for more than 10 years.

She is a committer at Eclipse Collections, an open-source Java Collections framework. Sirisha also co-leads the Pittsburgh Java User Group.

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you why the Java EE (Jakarta EE) deployment model is not old fashioned or out of date.  In this webinar, learn:

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you why standards like Java EE (Jakarta EE) are beneficial.  In this webinar, learn:

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you that Java EE can do microservices. In this webinar, learn:

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you that Java EE IS cloud-native and can handle microservices and containers in the cloud. In this webinar, learn:

• What is Cloud-Native?

• How Jakarta EE (Java EE) applications run securely in the cloud

• Why you should build applications, not runtimes

• Watch a demo of Jakarta EE on Cloud

• Watch a demo of scaling through Payara Micro in containers

• How to keep your runtime easily up-to-date

• Learn about an upcoming project, Payara Cloud, that separates the deployment from the runtime to make running Jakarta EE applications on the cloud even easier

If you’ve been hearing that Java EE is not cloud-native or it’s difficult to get your Java EE applications running in the cloud – come to this webinar to see why that’s not true and how you can continue using your existing Java EE development skills to modernize your application development.

DevSecCon24 is a global, vendor-neutral, community-driven conference that connects developers, security and operations teams to learn and enable the integration of security into their development practices.

jOnConf is the Java conference that enables all Java specialists around the world to connect, share knowledge, excel in their field and skyrocket their career by learning from the most successful experts in the Java industry.

With 10 speakers, 1 Zoom room and 1 panel discussion, we are ready to dive deep in the world of Java. Join us to find out about latest trends, tips and tricks, best practices and many insights into the day-to-day work of Java Champions.

Haben Sie ein Projekt in Ihrer Firma oder möchten Sie privat ein OpenSource Projekt durchführen? Steht ein neuer POC an, in dem Sie neue Technologien ausprobieren dürfen? Sie haben eine Idee im Kopf und möchten am liebsten gleich loslegen? Was Ihnen jetzt noch fehlt ist eine DevSecOps Umgebung mit der Sie ohne große Vorbereitungen durchstarten können?

JFrog bietet Ihnen dafür genau die richtigen Werkzeuge: Mit dem kostenlosen Zugang zur JFrog Plattform nutzen Sie Artifactory, Xray und Pipelines. Damit steht Ihnen eine komplette DevSecOps-Umgebung zur Verfügung.

In diesem Workshop zeige ich Ihnen Schritt für Schritt die einzelnen Komponenten und helfe Ihnen, diese für Ihr Projekt einzurichten. Dieser Workshop ist in mehrere Teile gegliedert, die sich jeweils mit einem bestimmten Abschnitt der Entwicklung beschäftigen.

In diesem Basismodul werden wir ein Projekt auf Basis von Maven aufsetzen, damit Sie mit Java und Kotlin loslegen können.

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you that Java EE application servers are not resource-heavy or slow.  Watch live demonstrations of application servers that show it’s possible to have a small footprint and low resource usage in Jakarta EE runtimes. In this webinar:

• See a new Jakarta EE (Java EE) runtime that allows for single jar deployment

• Watch a demo of a small start up/small footprint Jakarta EE runtime

• See a Jakarta EE application server that is not fat or heavy with high resource usage

If you’ve been hearing that Java EE application servers are all resource hogs and slow to start up  – come to this webinar to see why that’s not true and how you can continue using your existing Java EE development skills to modernize your application development.

In this myth-busting webinar, Steve Millidge (founder of Payara), will show you why Java EE is not old, outdated, or dead. Find out:

• What is Jakarta EE and how does it relate to Java EE?

• The future plans for Jakarta EE and why you should use it

• New features available in Jakarta EE

• The core profile

• How MicroProfile works with Jakarta EE to modernize your application development

If you’ve been hearing that Java EE is outdated – come to this webinar to see why that’s not true and how you can continue using your existing Java EE development skills to modernize your application development.

Voxxed Days Zürich 2020 was cancelled due to the Coronavirus but we are already planning the next edition as soon as it will be possible. Current target date is June 15th, 2021. We will monitor how the situation evolves and we’ll keep you updated.

We got a lot of message and support from developers asking us to organize a physical event and we think this is an important network day for all of us. We are ready to start again

The 4th edition of Voxxed Days Zürich in 2019 attracted 517 attendees who came together to meet and listen to fantastic content. Get a feel for it and watch the VDZ19 videos on YouTube.

GOTO is the enterprise software development conference designed for team leads, architects, and project management and is organized for developers, by developers. As software developers and architects ourselves, we wanted to craft the ultimate conference.

The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community, staged in an intimate environment needed to support as much learning and networking as possible.

Join Payara engineers for an informative and practical webinar on the recent updates and enhancements to the Payara Platform in the latest release.

Questions are encouraged and we will be saving time towards the end of the session to answer any queries you might have.

Agenda:

• Community Release
• AutoScale extension
• Logging improvements
• Enterprise Release
• Metro (JAX-WS implementation) remote code vulnerability
• HSTS support
• Payara Kubernetes Operator
• Future plans
• Monthly Theme : Communication protocols (HTTP(S), gRPC, ...)
• Questions / Discussions

Do you have a private project, an open-source tool, or want to do a POC? Do you already have the idea in mind and you wish to get started? Are you looking for a suitable environment so that you get the best possible support for your development? JFrog offers you just the right tools for this and access to the JFrog Platform is free! With Artifactory, Xray, and more, a complete DevSecOps environment is at your disposal.

In this workshop, I will show you the individual components step by step and help you set them up for your project. This workshop is divided into several parts, and each deals with a specific section of the development. In the basic module, we will set up a Java project based on maven consisting of one module so that you can get started.

We have been witnessing an ever-growing amount of supply chain security incidents in the wild. And now, those incidents are starting to extend to the place where developers spend most of their time: their integrated development environment, and specifically the Visual Studio Code IDE.

Recently, Snyk has discovered and disclosed vulnerabilities that pose a real and imminent threat to developers who use these extensions. The potential compromise is so significantly severe that a remote code execution on a developer's machine is possible by simply tricking the developer to click a link. This new VS Code extensions supply chain security threat has the potential to become a new attack playground, potentially impacting over 2,000,000 developers.

Join Liran Tal, and Kirill Efimov in this live hacking session where we talk about supply chain security and demonstrate the different attacks on unsuspecting developers.

GOTO is the enterprise software development conference designed for team leads, architects, and project management and is organized for developers, by developers. As software developers and architects ourselves, we wanted to craft the ultimate conference.

The result is a high quality conference experience where a tremendous amount of attention and investment has gone into having the best content on the most important topics presented by the leaders in our community, staged in an intimate environment needed to support as much learning and networking as possible.

Java Day Istanbul is one of the most effective international community driven software conference of Turkey supported by Istanbul Java User Group.

The conference helps developers to learn the newest technologies about Java, Web, Mobile, Big DATA, Cloud, DevOps, Agile and Future.

Java Day Istanbul also helps developers, tech companies, and startups to establish a good network among them.

A learning experience for senior software engineers.

QCon Plus is an online experience where you can build your own learning journey.

Learn from technical talks, engage in real-time live sessions, and develop new skills to validate your software roadmap.

GeeCON is a conference focused on Java and Java Virtual Machine based technologies, with special attention to dynamic languages like Groovy and Scala.

GeeCON is a forum for sharing experiences about modern software development methodologies, enterprise architectures, software craftsmanship, design patterns, distributed computing and more!

The event is for everyone interested in new things from the world of Java and related universes!

Conference schedule is a mix of invited and call for papers talks. We are working very hard to choose the most interesting technologies and solutions in order to show you the hottest stuff.

Tune in for Wurreka's second virtual conference and job event series, GIDS Live 2021, April 27-30.

The four-day program includes an eclectic mix of technical talks, conversations and experiences, featuring some of the most talented and influential figures in software engineering and architecture along with ample opportunities to find a great job or choose a great team member.

GIDS Live 2021 will stream to audiences in Asia-Pacific (India, Australia, Singapore, Hong Kong, Indonesia, Philippines, Vietnam and Malaysia). Tickets are on sale now.

Conf42 was created in 2019 by Pawlikowski brothers.

We organise Computer Science Conferences.

Our goal is to bring together speakers from all around the world to help their ideas reach a larger public.

Conf42 collaborates with world-class Computer Science practitioners from a variety of industries, from multi-billion dollar giants to startups, open source communities and universities

The Developer’s Conference (TDC) is the largest event related to software development in Brazil connecting meetup and event organizers, speakers, companies and sponsors on a single platform, empowering the local ecosystem of each region it's realized.

TDC is a very dynamic conference aimed to present the most important topics according to local and international needs and, for this reason, there are more than ten parallel tracks a day.

Each track is like an independent one-day event organized by experts that are responsible to select seven or more speakers via the Call4Papers platform.

Due to the current pandemic situation, we have decided to hold JavaLand 2021 exclusively as a two-day online conference.

On March 16 and 17, you can look forward to more than 120 talks in eight streams around your favorite Java topics!

Take a look at the conference program now and discover for yourself.

Until February 4, 2021, you can get your online ticket at an early bird price.

We're only two weeks into January, and we have already received 100 presentation submissions for ElasticCC — more than 20 in APJ (Asia-Pacific/Japan) and almost 40 in both EMEA (Europe/Middle East/Africa) and NASA (North/South America). That's an amazing start, and we still have room for some more. Since we know how hard it is to get started after the holidays, we’re extending the Call for Presentations (CfP) until Friday, January 22, at 23:59 UTC. So if you’ve been meaning to submit a talk but just haven't been able to find the time, now is your chance to join the fun: https://sessionize.com/elastic-community-conference-2021/

If this is your first time hearing about ElasticCC, here's a quick rundown. In short, it's a free technical conference from the community, for the community. It's open to developers, practitioners, customers, and partners — we look forward to talks from you all! The virtual sessions will kick off on the afternoon of Friday, February 26, in EMEA and will run through February 27 in APJ, making it a global event.

JavaDay Lviv is an annual international conference related to Java technologies and the eco-system.

Propose more than 18 global speakers – well-known Java professionals from different countries around the globe.

The conference agenda will include trends, hypes, and cutting-edge technologies, such as Full-stack Java, JVM Languages, Serverless, Machine Learning, Data Science, and much more.

This year we are a free, online event.

Talks will be presented without interruption, after each there will be a live discussion session with the speaker.

Be sure to check the chat for link to the discussion session.

Jfokus 2021 will be a one day online conference experience in February 2021.

Jfokus is all about developers!

Java, Frontend & Web. Continuous Delivery & DevOps, Internet of Things & Artificial Intelligence, Cloud & Big Data, Future & Trends, Alt.JVM Languages like Scala, Kotlin & more, Agile development... and Superheroes. 😉

From 08 - 12 February 2021 we offer you once again more than 170 lectures on 5 days, 13 topics and up to 9 parallel tracks.

Expect many social events, workshops and much more at the Conference for Software Architecture!

Agility, Digital Transformation, Domain-Driven Design, Programming Languages or Software Development: The OOP offers you the perfect opportunity to deepen your core competencies and - at the same time - also broaden your horizons.

Foojay is a community around the OpenJDK, providing tips and insights for Java developers, providing user-focused Java and OpenJDK technical dashboards with free data on all things Java, including a blog area, Foojay Today.

The Foojay devroom at FOSDEM is an opportunity for developers in this domain to meet, discuss the current state of their projects, and their roadmaps, while also helping others to understand the state of these interrelated projects.

Please join us to see and share the range of tools and technologies actively being developed on and used with the OpenJDK.

Learn by doing.

DDD Europe 2021 consists almost entirely of interactive hands-on labs and workshops, led by industry experts.

You’ll collaborate with other participants in practical sessions with modelling, design, visualisation, code, architecture, discussion, …

Since its start-up in Oslo 2008, the Norwegian Developers Conference (NDC) quickly became one of Europe`s largest conferences for .NET & Agile development.

Today NDC Conferences are 5-day events with 2 days of pre-conference workshops and 3 days of conference sessions.

Java (still) is one of the most popular programming languages.

And when you ask someone, what is the first programming language you have learned?, the answer often is Java.

This is why we want to dedicate a whole day to Java – exploring the language itself, developer tooling, solution architecture, programming methodologies, continuous delivery, and high-performance computing.

Dawson College will again be hosting its free one-day software conference in Montreal. This conference is bringing speakers from around the world to speak to students and developers on a wide range of topics concerning software development. You chose to be a programmer and one of the commitments this entails is to lifelong learning. DAWSCON is the ideal place to start or continue!

The event is free to attend and targeted at students, professional software developers and anyone with a general curiosity.

Java Champions are developers from around the world who are recognized for the contributions to the Java community.

Champions are about sharing their knowledge with developers.

This coming January will be the first conference organized by Champions and featuring Champions in the presentations.

Our audience is the 14 million Java developers world wide.

Join the JFX days and attend eight online sessions (for free) covering various topics related to the best desktop user interface technology there is. Desktop? Not really!

These days JavaFX runs everywhere. On the desktop (Windows, Mac, Linux), on mobile devices (iOS, Android), in the browser, and on embedded devices. With so many options it comes with no surprise that a lot of us get lost in a jungle of infinite possibilities.

The JFX days are here to help. Stay informed on deployment options, tooling, frameworks, open source projects, and commercial solutions.

The JCON is the great Java Community Conference of JAVAPRO - the first free professional magazine for Java. Due to Covid-19, this year's JCON will not take place in the UCI cinema in Duesseldorf, but as a pure online conference.

All sessions will be broadcast live and recorded. Although the online concept is new for all of us, it offers a lot of advantages for all participants: no travel necessary, no travel and accommodation costs, quick and easy switching between the presentations, just log in, select the session and be there.

And in addition, the JCON-Online 2020 offers even more sessions and top-class speakers and thus even more choice and concentrated Java know-how than ever before.

Join the world’s strongest community of DevSecOps practitioners and leaders

SnykCon is a free, multi-track event designed to help development, security and operations teams accelerate the development of secure software
Snykcon is a global online event that will be held on October 21-22, 2020

Meeting and engaging with others is more important now than ever before. Snyk wants to bring the DevSecOps community together for 2 days of sharing, learning and fun to help us be stronger and more Secure, together.

Register for free today!

EclipseCon Community Day is on Monday, October 19 14:00 to 18:00 CET (the day before the start of the main EclipseCon conference). Community Day at EclipseCon has always been a great event for Eclipse working groups and project teams. This year both EclipseCon and Community Day is virtual and free.

Space for Community Day is limited, so please register and save your spot soon.

Further details, see Why You Should Join EclipseCon Community Day.
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