Mark Reinhold, Chief Architect of the Java Platform Group at Oracle, provided a demonstration of the need for the biggest innovation in Java 9—modularity.

It never rains but it pours! Get some background on the long and winding road to Java modularity, then compare the two specification requests vying for inclusion in Java 7: JSR 291: Dynamic ...

Beyond Java EE 6, modularity will be key, according to the Oracle officials. OSGi, meanwhile, plays an important part of the Java ecosystem and Java platform overall, Harris said.

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.