Carlos Obregón at JavaOne 2026
Duke's Corner
from Oracle Java Developer Relations talks with at JavaOne 2026. Carlos is a Java Champion and also the founder of Bogota's Java User Group, Bogotá JVM. Carlos has been running monthly meetups for over a decade, and he and his colleagues have built one of the most active developer communities in Latin America. In his session at JavaOne — Teaching Java as a First Language: Lessons from Three Years of a Real-World Bootcamp — he outlined a free, online, 13-week week program for learning Java. The bootcamp started in Colombia but then quickly expanded to include multiple JUGs in Latin...
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Cristian Schuszter at JavaOne 2026
Duke's Corner
from Oracle Java Developer Relations talks with at JavaOne 2026. Cristian is a PhD in systems engineering and a Tech Lead at CERN in Geneva. He's been at CERN for 8 years, but he's been coding since he was eight years old. He loves working with and contributing to the Java community and other Open Source projects. This was Cristian’s first JavaOne, and his session, "30 Years of Java Development: Keeping it All Together," covered how CERN keeps Java running across teams since 1998. Like any large company, CERN uses a lot of legacy code supporting systems that, in Cristian’s words, "need...
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Martin Chalupa at JavaOne 2026
Duke's Corner
Jim Grisanzio from Oracle Java Developer Relations talks with Martin Chalupa from Netflix at JavaOne 2026. Martin is a software developer with about eight years at Netflix and about twenty years working with Java. At Netflix, Martin works on the JVM ecosystem team, which grew from the build tooling team and now also handles broader JVM work such as tuning, garbage collection, and upgrading. In his session at JavaOne Martin covered Java ahead of time compilation and Project Leyden, and he shared what Netflix has learned from experimenting with the technology. Just as many software developers,...
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Luiz Real at JavaOne 2026
Duke's Corner
Jim Grisanzio from Oracle Java Developer Relations talks with Luiz Real, an engineer and college professor from the SouJava Community in Sao Paulo, Brazil. Luiz came to JavaOne 2026 for the first time this year to build relationships, catch up on the latest technical features in Java, and to mix with the Java Champions. He says building those connections is something you can only do in person at a conference like this. "JavaOne for me is a career changing thing," he says. In this conversation Luiz also talks about teaching Java to students, the opportunities for Java developers in the world of...
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Henri Tremblay at JavaOne 2026
Duke's Corner
Jim Grisanzio from Oracle Java Developer Relations talks with Henri Tremblay at JavaOne 2026. Henri is a Java Champion, Montreal JUG leader, and EasyMock lead developer from Montreal, Canada. Henri’s session at JavaOne covered the Java Memory Model, which is a topic he believes every Java developer should understand well. He’s been to six JavaOne’s and had warm words for the conference, which represents a rare opportunity to meet the people whose code runs on systems and devices all over the world. He had clear advice for developers: read books, understand how and why your code works,...
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Bruno Borges at JavaOne 2026
Duke's Corner
Jim Grisanzio from Oracle Java Developer Relations talks with Bruno Borges from Microsoft at JavaOne 2026. Bruno works on GitHub's Core AI developer relations team. The conversation covers the future of Java in a world of AI, the value of learning core computer science fundamentals in school, the shifting role for software developers from just writing code to architecting higher level systems, the new business value opportunities for developers as they leverage AI technologies, and Bruno's new AI-assisted website called Java Evolved that visually compares old and new Java code patterns. Bruno...
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Bob Treacy: From the Factory Floor to Harvard and 30 Years of Java
Duke's Corner
Bob Treacy started his career as a union steward on the factory floor at GE Aircraft Engines. After earning a BS and MS in Computer Science from Boston University while working and raising a family at the same time, he jumped to software, never looked back, and remains at the cutting edge with Java and AI. Now Principal Software Architect and Data Engineer at Harvard University, he has been writing Java since 1995 and has attended more than 20 JavaOne conferences. So, he’s lived much of the entire life of Java. At JavaOne 2026 this week from Harvard’s Dataverse project, which uses...
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Paul Bakker: Go Build a Lot of Stuff!
Duke's Corner
This is the third in a short series of speaker profiles for in Redwood Shores, California, March 17-19. Get early bird pricing until February 9, and for a limited time, take advantage of a $100 discount by using this code at checkout: J12026IJN100. . . In this conversation, Jim Grisanzio from Java Developer Relations talks with Paul Bakker, an engineer and Java architect in California. Paul is a staff software engineer in the Java Platform team at Netflix. He works on improving the Java stack and tooling used by all Netflix microservices and was one of the original authors of the DGS...
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Marit van Dijk and Anton Arhipov: 25 Years of IntelliJ IDEA
Duke's Corner
This is the second in a short series of speaker profiles for in Redwood Shores, California, March 17-19. Get early bird pricing until February 9, and for a limited time, take advantage of a $100 discount by using this code at checkout: J12026IJN100. JavaOne: | In this conversation, Jim Grisanzio from Java Developer Relations talks with developer advocates Marit van Dijk and Anton Arhipov from about the 25th anniversary of IntelliJ IDEA, the latest features of the IDE, Anton's upcoming session at JavaOne in March, and their perspectives on JavaOne as the premier conference for Java...
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Jeanne Boyarsky: Get Ready for Java 25 Certification
Duke's Corner
This is the first in a short series of speaker profiles for JavaOne 2026 in Redwood Shores, California, March 17-19. Get early bird pricing until February 9, and for a limited time, take advantage of a $50 discount by using this code at checkout: J12026DCP. . . In this conversation, Jim Grisanzio from Java Developer Relations talks with Jeanne Boyarsky, a Java developer, an author, and a Java Champion based in New York City. Jeanne previews her JavaOne session, which will be a Hands on Lab for Java 25 certification. Previously, Jeanne was a guest on Duke's Corner in January 2024: . ...
info_outlineJim Grisanzio from Java Developer Relations talks with Heinz Kabutz from the Island of Crete in Greece. Heinz has a PhD in Computer Science, publishes the The JavaSpecialists' Newsletter, and runs the JCrete Unconference. Heinz is also a Java Champion and a teacher, and he cares deeply about the technology and the community. Recently, Heinz was recognized for his Lifetime Achievement by Sharat Chander from Oracle Java Developer Relations. “I was on cloud nine! I was so honored,” Heinz said.
In this conversation Heinz previews some JEPs in the upcoming Java 25 release, he comments on the value of the 6-month Java release cycle, he outlines how he’s contributed code to OpenJDK (and how others can too!), he offers some detailed advice to students getting involved in software development for the first time, and he talks at length about the opportunities for developers who participate at the JCrete Unconference. “I have seen people whose entire careers got revolutionized just by coming to JCrete once. It’s really life changing!”
Heinz Kabutz
https://x.com/heinzkabutz
https://www.javaspecialists.eu/
https://www.jcrete.org/
https://x.com/heinzkabutz/status/1920855230910005540
OpenJDK
https://openjdk.org/
Duke's Corner Java Podcast
https://dukescorner.libsyn.com
Jim Grisanzio
https://x.com/jimgris
https://jimgrisanzio.wordpress.com
https://www.linkedin.com/in/jimgris/