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 (4+)

Matt Raible: OAuth for Java Developers

Thrive Workplace

5:30-6:00: Food, Soda, Beer and Networking

6:00-6:15: Announcements

6:15-7:45: OAuth for Java Developers

You can use OAuth to secure apps, APIs, and devices. OAuth has become increasingly popular, especially as developers are asked to knit together hundreds of apps and thousands of users in enterprise environments.

The Java ecosystem is vast, with over 10 million developers worldwide and an abundance of IDEs, build tools, libraries, and frameworks to make them more productive. In this quick session, I’ll provide you with a state of the OAuth ecosystem in Java. You’ll learn which frameworks support OAuth and which ones don’t. I’ll also offer some practical examples you can run in just a few minutes.

About Matt Raible

Matt Raible is a well-known figure in the Java community and has been building web applications for most of his adult life. For over 20 years, he has helped developers learn and adopt open source frameworks and use them effectively. He's a web developer, Java Champion, and Developer Advocate at Okta. Matt is a frequent contributor to open source and a big fan of Java, IntelliJ, TypeScript, Angular, and Spring Boot.

He’s a member of the global JHipster development team and loves classic VWs. You can find him online at @mraible and https://raibledesigns.com.

7:45: Door prizes

Denis Magda: How Java Apps Litter Beyond the Heap and What We Can Do About That

5:30-6:00: Food, Soda, Beer and Networking

6:00-6:15: Announcements

6:15-7:45: How Java Apps Litter Beyond the Heap (And What We Can Do About That)

As Java developers, we’re no strangers to the concept of garbage collection. Java apps generate lots of garbage which is meticulously cleaned by CMS, G1, Azul C4, and other types of collectors. However, the story doesn’t end with the Java heap. It only starts there. In fact, your application code constantly generates garbage and triggers collection cycles at the database and even hardware level.

In this session, we take the example of a typical Java application that uses PostgreSQL or YugabyteDB as a relational database and SSDs as a storage medium. From there, we will analyze how our apps litter beyond the boundaries of the Java runtime and what actions we can take to avoid surprises in production.

About Denis Magda

Denis started at Sun Microsystems and Oracle, where he built JVM/JDK and led one of the Java development groups. After learning Java from the inside, Denis joined the world of distributed systems and databases, where remained ever since. His experience spans from the development of distributed database engines and high-performance applications to training and education on the topic of “Java in the world of databases”.

7:45: Door prizes

8:00 Post-meetup networking

2
Gradle Team: Topic TBD

Thrive Workplace

5:30-6:00: Food, Soda, Beer and Networking

6:00-6:15: Announcements

6:15-7:45: Topic TBD

7:45: Door prizes

Nikhil Nanivadekar: Topic TBD

Thrive Workplace

5:30-6:00: Food, Soda, Beer and Networking

6:00-6:15: Announcements

6:15-7:45: Topic TBD

7:45: Door prizes