On the first ever DevoXX US in San Jose, California, Leo and Otavio presented JSR 363.

After DevoXX UK and Belgium in 2015 and a related session Werner gave while DevoXX Morocco was still called JMaghreb, this marked 4 out of currently 6 DevoXX venues with a session on JSR 363.
Although at Geecon and not DevoXX Poland, Werner also presented Standards for Java Embedded in Krakow, so that way it's actually 5 out of 6 with only Paris missing ;-)

JSR363 - Devoxx US von Leonardo De Moura Rocha Lima