Building and sustaining vibrant Java communities is both rewarding and challenging. Based on insights gathered from various JUG leaders and long-time community members, this talk explores the real-world challenges many Java communities face: from geographical limitations and localization challenges, to engaging younger audiences and collaborating with universities.

We’ll reflect on how the global pandemic reshaped the Java community event formats - forcing to adapt to virtual and hybrid models - and the lasting impact these shifts have had.

We’ll discuss why continuity and consistency are critical to long-term success, and how strong, people-driven leadership - often from passionate Java experts and enthusiasts - keeps these communities alive and thriving. At the heart of every successful JUG is a team of committed individuals who create meaningful connections, foster technical growth, and build spaces where others want to contribute.

This talk shares practical strategies, stories, and inspiration for anyone working to grow or support a Java community.

Jakarta Tech Talk: A JUG-gle is Real - Growing Java Communities: Challenges, Shifts & Opportunities