January

January
7-10

CodeMash

Sandusky, Ohio

This conference at the Kalahari waterpark and resort had 2,500 attendees last year. Tracks this year include programming principles, security, UX design, software quality, architecture, DevOps, and more.

January
10

Dawscon

Montreal, Canada

A free, one-day conference on software development held at Dawson college and hosted by Java Champion Ken Fogel. Scheduled speakers include Venkat Subramaniam, James Weaver (of IBM, speaking on quantum computing), and Oracle’s David Delabassée, among others.

February

February
3-5

Jfokus

Stockholm, Sweden

One of the most popular Java conferences returns again next year with a focus on microservices. Speakers include Java Champions Kirk Pepperdine and Bruno Borges (both from Microsoft), Rafael Winterthaler (of Byte Buddy fame), and experts such as Clement Escoffier (of vert.x), among others.

February
19-21

DevNexus

Atlanta, Georgia

One of the first major conferences on the US calendar, DevNexus has a wide-ranging focus, mostly aimed at Java, but also covering other topics this year such as microservices architecture, Kubernetes, Domain-Driven Design, and more. The Java track includes sessions on the upcoming release of JMS, the future of JavaFX, grokking the changes in Java 9-14, and so forth.

March

March
14

Java Day Istanbul

Istanbul, Turkey

This one-day event has 25 sessions in three tracks presented by leading Java developers and experts in Turkey.