This month we have some great lightning talks (less than 30 minutes each) by SeaJUG members:
Eric Jain will be talking about joda and java.time. He will address things such as why so many different classes? When is a simple UTC timestamp not enough? Can I infer a timezone from coordinates, etc.
Douglas Pearson will do a short talk on what he calls "Super Strong Typing" which is an approach to designing classes and types in Java to get away from the "passing 6 Strings into a method" problem.
Peter Dillinger will talk about Instrumentation in the era of Stack Map Frames. A rant on how this new bytecode requirement is a major complication for JVM bytecode instrumentation, informed by a blog post by Prashant Deva and motivated by some recent product work of mine.