Project Jigsaw is the Java project that encompasses several change recommendations to the Java platform. As you have read in earlier chapters, Java 9's greatest changes involve modules and modularity. The initiative to move to modules in Java was driven by Project Jigsaw. The need for modularity stemmed from two major challenges with Java:
Next, we will review both of those challenges and see how they were addressed and overcome with the new release to the Java platform, Java 9.
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