Explore Project Jigsaw and the Java Platform Module System in Java 9 through a practical, live-coding conference talk. Construct and modify a simple modular application to understand the essential aspects of the module system, including reliable configuration, strong encapsulation, improved security, and JDK configurability. Dive into topics such as Java 9 compatibility, class modules, refactoring, running and recompiling code, exporting APIs, and avoiding cyclic dependencies. Learn about JavaDoc modules, linking, JMods, custom JREs, compression, and the Jigsaw project's release date. Gain insights from Mark Reinhold, Chief Architect of the Java Platform Group at Oracle, as he shares his extensive experience and contributions to the Java platform.