You might be asking yourself--isn't Java 9 just a maintenance release with a set of features that did not make it into Java 8? There is plenty of new stuff in Java 9 that makes it a distinct version in its own right.
Inarguably, the modularization of the Java platform (developed as part of project Jigsaw) is the biggest piece of work that makes it successfully in Java 9. Initially planned for Java 8, but postponed, project Jigsaw is also one of the main reasons why the final release of Java 9 was further postponed. Jigsaw also introduces a few notable changes to the Java platform and is one of the reasons Java 9 is considered a major release. We will explore these features in detail in the subsequent chapters.
The
