Meetup Info

We have 2016 members!


18:00 Networking, food, and drinks
18:30 Presentation
20:00 Beers!

Ahead of Time (AOT) Compilation

2020-01-21 18:00 @ Amazon re:Invent – 2121 8th Ave, Seattle
89 attending

* Note: Please RSVP for this event by Sunday, January 19th so that we can provide our sponsor with a list of attendees. Thanks!

With more and more services running on the Cloud, improving the startup of Java applications is paramount. Java 8 and Java 11 introduced many new features, with AOT Compilation and AppCDS being two of the major ones geared towards startup performance. In this talk, we'll explore what AOT Compilation brings to the Java developer, where it fits in the Code Generation pipeline, how to use it, where it works and where it doesn't.


Ludovic Henry is a Runtime Engineer at Microsoft who worked on .NET (Mono and CoreCLR) and Java for the past six years. His focus has been on all Runtime related components, from JIT and AOT Compilers to Garbage Collectors, to Metadata and Class Loading, to integration to various platforms (Linux, macOS, Windows, Android, iOS, Consoles, WebAssembly, and others). He is currently working on the Java Platform team at Microsoft and strives to help all Java users by bringing ever more performance to their applications.

Amazon re:Invent Building[masked]th Ave. Seattle, WA 98121

Driving Directions:
From I-5 Southbound
– Take exit 166 for Stewart St.
– Merge onto Eastlake Ave.
– Turn right onto Stewart St.
– Turn right onto Denny Way.
– Take a slight left onto Lenora St.
– Turn right onto 8th Ave. Entrance will be on your left.

From I-5 Northbound
– Take exit 165 towards 6th Ave.
– Keep right to continue onto 6th Ave.
– Turn right at Westlake Ave.
– Take a slight left into 8th Ave.
– Entrance will be on your left, just before Blanchard St.

Parking Information:
Parking at the Amazon re:Invent building is free from 4:00pm to 2:00am on weekdays. There are two garage entrances accessible from 7th Ave on Blanchard and the other is on 8th and Blanchard across from The Butcher’s Table Restaurant. Garage height restriction is 6'8".


The Seattle Java User’s group has been meeting since the mid-90s in the Seattle and Eastside area. It is geared towards topics related to the Java Virtual Machine and languages which run on it such as Java, etc. You can find us on

SeaJUG is an all volunteer effort – which means items such as the website and mailing list are updated as schedules afford. We meet on the 3rd Tuesday of every month. We need suggestions/volunteers for topics! If you’d like to donate your time/skills to the cause, please contact Nimret Sandhu.

Chair: Nimret Sandhu
Community Leaders: Freddy Guime, Ben Garnaat
Founder: Jayson Raymond