The fourth of the Modular Java series covers declarative modularity. It describes how components can be declaratively defined and wired together, without having a code dependency on OSGi APIs.

Get primed on the shortcomings of traditional modular programming in Java and find out how Project Jigsaw, OSGi, and Penrose could end up working side by side in Java 9.

To ease migration to Java 9’s new modularity approach, Mark Reinhold, Oracle’s chief Java architect, proposed illegal reflective access, which would allow this access by default in the release ...