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[Offline] JJUG Night Seminar: Where Spring Boot and Quarkus Stand Today

Name: [Offline] JJUG Night Seminar: Where Spring Boot and Quarkus Stand Today
Start: 2026-10-19T19:00:00+09:00
End: 2026-10-19T21:00:00+09:00
Location: 日本マイクロソフト株式会社, 〒108-0075 東京都港区港南 2-16-3 品川グランドセントラルタワー

JJUG night seminar in Shinagawa: build Spring Boot Auto Configuration yourself, and tour modern Java development with Quarkus.

When: Mon, October 19, 2026 · 19:00–21:00 JST
Where: 日本マイクロソフト株式会社, 〒108-0075 東京都港区港南 2-16-3 品川グランドセントラルタワー·In person
Region: Kanto (Tokyo)
Organizer: Japan Java User Group
Language: JA
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[Offline] JJUG Night Seminar: Where Spring Boot and Quarkus Stand Today

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Summary

October's JJUG Night Seminar covers Spring Boot and Quarkus, two frameworks behind modern Java development. It is held at Microsoft Japan in Shinagawa Grand Central Tower on Monday, October 19, 2026 from 19:00 to 21:00. The first session, by Ryo Shindo, explains Spring Boot's Auto Configuration, often called black magic, by building one from scratch, which helps with debugging and library development. The second, by Chihiro Ito, walks through modern Java development with Quarkus, with demos of Live Reload and continuous testing, startup with Native Image and Leyden, processing models including Virtual Threads, and observability with OpenTelemetry, Micrometer, and JFR.

About the community

A monthly weekday-evening seminar run by one of Japan's largest Java user communities. Each edition picks a theme, and community engineers give talks on Java frameworks, new JVM features, and development and operations practice.

#java#spring-boot#quarkus#jvm#observability#jjug