Migrating to Java 9 Modules

Explore the challenges and strategies for migrating existing Java applications to the new module system introduced in Java 9. Learn about automatic modules, unnamed modules, and command-line arguments designed to ease the transition. Dive into practical examples based on a Spring/Hibernate application, addressing common migration issues and gaining insights into the module framework. Discover valuable tips for preparing your codebase for modularization, including handling third-party libraries, resolving missing platform modules, and dealing with deep reflection. Understand the mental model of your application's structure and how Java 9 modules can improve it. Follow a step-by-step migration process, covering topics such as classpath migration, using jdeps for problem detection, leveraging automatic modules, and working with open modules and packages.