What we're about

Denver Java Users Group is a free, informal, all-volunteer, group of Denver Java enthusiasts that has been meeting since November 1995. We rely on community participation. We need your involvement, ideas, thoughts, and help if we are to continue to provide quality technical education and events now and into the future! Denver Java Users Group brings you leaders and specialists in Java technologies for first-hand exposure to code, best practices, tools, methodologies, and cutting-edge solutions. Meetings are free and open to the public.

You can follow us on Twitter @denverjug (https://twitter.com/denverjug) or subscribe to our YouTube channel (https://www.youtube.com/c/denverjug).

Upcoming events (5)

Ko Turk: Controlling your race with Micrometer, Spring Boot, and Cloud Foundry

5:30-5:45: Announcements 5:45-7:15: Controlling your race with Micrometer, Spring Boot (2.x) and Cloud Foundry Imagine that you’re part of a (car) race team. You’re the one behind the screens to control the race and make some tough decisions (like changing the teams strategy). But you don’t have the insights (or metrics) about your car, opponents or even the weather. Sounds painful right? But why are we making this mistake when building our software? Why don’t we implement metrics by default? SLFf4J logging is one side of the story, but we also need to know our application health. That’s where Micrometer comes in! It’s a library which you can use to define your own custom metrics, like: - timers (to check the performance of your microservices) - counters (to check how many times a certain event is occurring) - gauges (to check the current value of a variable) - and many more These metrics are exposed by REST endpoints (JSON) together with Spring Boot actuator, which can be saved into a database like Prometheus or Graphite. And to visualize the data you can use a tool like Grafana. Pretty interesting right? In the demo (live coding!) I will show you how to create such applications using Micrometer, Spring Boot and Cloud Foundry as our platform. Ready to win this race with me? Jump in! About Ko Turk Hi, my name is Ko Turk and I am a Senior Java Developer at Blue4IT! I am working as a Fullstack engineer, creating microservices and building frontend applications. As a speaker I am talking on conferences (like JavaZone, DevNexus, and JFall) about IDEs, Micrometer, and Consumer Driven Contract Testing, Please see my speaker credentials at http://ko-turk.nl and please leave me a tweet @KoTurk77. You can find Ko on Twitter @KoTurk77 (https://twitter.com/KoTurk77). 7:15-7:30: Q & A The live streaming of this meetup is sponsored by Okta (https://developer.okta.com/).

Devnexus 2021 - Free!

Needs a location

Devnexus is the premier conference for professional software developers who want to hear from and interact directly with internationally acclaimed presenters and technologists while also connecting with like-minded developers who are mastering their craft in a range of relevant technologies. Founded in 2004 by the Atlanta Java Users Group as Atlanta DevCon and restarted in 2009 under the moniker Devnexus, the 2020 event brought in 2400+ attendees for an experience that will span three days, beginning with an optional full day of six hands-on workshop sessions, followed by two days of presentations and live demonstrations on the industry’s hottest topics. It offered 15 concurrent technology tracks and 160+ individual sessions, Devnexus brings attendees unparalleled opportunities for both learning about the latest technology trends and diving deep into technologies that interest them. We are VIRTUAL for 2021 but aim to bring the same world-class content to our attendees. See the FULL SCHEDULE at https://devnexus.com/schedule. Feb 17 – Devnexus Online Conference – FREE to attend and featuring: - Celebrity Keynote: An audience with the fantastic LeVar Burton, award winning Actor, Director and Producer known for his roles in Star Trek as Geordi La Forge, Roots and Reading Rainbow. - 7 concurrent tracks: Java Frameworks, Java Platform, Cloud Technology, Agile and Architecture, Security, Web and Demos. - 50 deep dive technical sessions featuring Java Champions, Language and Framework Creator, Published Technical Authors, Internationally Acclaimed Speakers and Community Experts. - Virtual Expo with sponsors giving away tons of FREE SWAG. - Online Happy Hour, the OSSRRR Party Jam, with a Live Streaming DJ, Raffles and Prizes. Feb 18 – Devnexus Online Workshops led by the best OEMs in our community - $49.00 - 09:00 – 17:00 EST - Liquid Software: DevOps Tools for Developers - Presented by JFrog. - 09:00 – 17:00 EST - Yes, Your Applications are Under Attack: Protecting each step of the development lifecycle - Presented by Sonatype. - 09:00 – 13:00 EST - Cloud-Native Java Made Easy with MicroProfile - Presented by IBM. - 13:30 – 17:30 EST - Java on Kubernetes 101 - Presented by IBM. - 09:00 – 13:00 EST Building Java Applications with Micronaut in the Cloud - Presented by Oracle. - 13:30 - 17:30 EST - Using Oracle Cloud Infrastructure (OCI) to Build a Java Application - Presented by Oracle. - 13:30 – 17:30 EST - DevOps for Java Shops - Presented by Microsoft Azure. - 09:00 – 13:00 - Java EE on Azure - Presented by Microsoft Azure. - 13:30 – 17:30 EST - Introduction to OAuth and OpenID Connect - Presented by Okta Register for the conference (Free) and workshops on Eventbrite: https://www.eventbrite.com/e/devnexus-2021-tickets-132807499807

Steve Chin: Modern Java Clients with JavaFX

Online event

5:30-5:45: Announcements 5:45-7:15: Modern Java Clients with JavaFX: The Definitive Guide This session is for professionals building Java applications for desktop, mobile, and embedded devices in the Cloud age. It will help you to build enhanced visual experiences and to deploy modern, easy to maintain, client applications across a variety of platforms. These applications can take advantage of the latest user interface components, 3D technology, and cloud services to create immersive visualizations and allow high-value data manipulation. Learn how to leverage the latest open-source Java client technologies to build rich, responsive, and modern UIs from the authors of the definitive Java Client reference. About Steve Chin Stephen Chin is Senior Director of Developer Relations at JFrog, author of Raspberry Pi with Java, The Definitive Guide to Modern Client Development, and Pro JavaFX Platform. He has keynoted numerous Java conferences around the world including Oracle Code One (formerly JavaOne), where he is an 8-time Rock Star Award recipient. Stephen is an avid motorcyclist who has done evangelism tours in Europe, Japan, and Brazil, interviewing hackers in their natural habitat and posting the videos on http://nighthacking.org/. When he is not traveling, he enjoys teaching kids how to do embedded and robot programming together with his teenage daughter. You can find Steve on Twitter @steveonjava (https://twitter.com/steveonjava). 7:15-7:30: Q & A The live streaming of this meetup is sponsored by Okta (https://developer.okta.com/).

Aleks Seović: Managing State in Elastic Microservices

Online event

5:30-5:45: Announcements 5:45-7:15: Managing State in Elastic Microservices Scaling stateless services is easy, but scaling their stateful data stores, not so much. This is true whether you are using an "old fashioned" relational database, or one of the popular, "modern" KV data stores, such as MongoDB or Redis. In this presentation, we will discuss some of the issues with state management in elastic microservices today, and look into how Coherence Community Edition, with its Helidon and Eclipse MicroProfile integration, provides a better alternative you can use tomorrow. About Aleks Seović Aleks Seović is an architect at Oracle, where he works on Oracle Coherence, a leading in-memory data grid product, and contributes to the Helidon microservices framework. Most recently, Aleks led the design and implementation of the Helidon gRPC framework, as well as CDI and Eclipse MicroProfile support in Coherence. He currently leads the implementation of Coherence native clients, GraphQL support, and Spring integration. Prior to joining Oracle in 2016, Aleks led a boutique consultancy practice, where he worked with customers around the world to help them implement mission-critical applications on top of Coherence. Aleks is the author of “Oracle Coherence 3.5” (Packt Publishing, 2010) and frequently speaks about and evangelizes Coherence at industry conferences, Java and .NET user group events, and Coherence SIGs. You can find Aleks on Twitter @aseovic (https://twitter.com/aseovic). 7:15-7:30: Q & A The live streaming of this meetup is sponsored by Okta (https://developer.okta.com/).

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