Simon Maple Returns

Our March event is special! We are hosting Java Champion and JavaOne Rockstar, Simon Maple, Virtual JUG founder and London Java Community co-leader and RebelLabs author. Oh, and Duke’s Choice award winner!

Simon is presenting....

Do You Really Get Class Loaders

and Productive and Effective Development with Spring and Java EE

Doors Open 18:15 (evening session)

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Simon is an experienced speaker, having presented at JavaOne, JavaZone, Jfokus, DevoxxUK, DevoxxFR, JavaZone, JMaghreb and many more including many JUG tours. His passion is around user groups and communities. When not traveling, Simon enjoys spending quality time with his family, cooking and eating great food.

You can follow him on twitter at @sjmaple, @virtualjug
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Do You Really Get Class Loaders

Class loaders are at the core of the Java language. Java EE containers, OSGi, NetBeans modules, Tapestry 5, Grails, and many others use class loaders heavily. Yet if something went wrong, would you know how to solve it?

This session takes a tour of the Java class loading mechanism, from both the JVM and developer points of view.

It looks at typical class loading problems and how to solve them. ClassNoDefError, IncompatibleClassChangeError, LinkageError, and many others are symptoms of specific things going wrong that you can usually find and fix.

For each problem, the presentation goes through a hands-on demo with a corresponding solution. It also takes a look at how and why class loaders leak and how you can remedy that.

Productive and Effective Development with Spring and Java EE**

This live coding session shines some light on a range of productivity tools that make software development a pleasure rather than a chore.

Simon will live-code two applications. The first, a Java EE application with JBoss Forge that uses JPA, Bean Validation, REST, and Angular, is tested with Arquillian from within JBoss Forge. You’ll see how a Java EE microservice can be developed in Forge and run with JBoss Swarm. The second application is developed on Spring Boot, and you’ll see how to develop and run a Spring application with JRebel. You’ll learn how to write code productively with tools designed for developers.

REGISTRATION NOTES

The Dublin Java User Group meetups are designed to enhance the knowledge of developers and technology professionals.

Due to the overwhelming demand to attend our events they are always full so make sure you're subscribed to the wait-list here https://ti.to/dublin-java-user-group/class-loaders-spring-java-simon-maple/ to get the release notification of this and future Dublin Java User Group events. Better still, email Team@DubJUG.org and we'll tell you how to become a coveted platinum member of the Ireland's longest running and most respected Java User Group.