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Re:Jigsaw Finally Arrives in JDK 9 by melling on Friday March 11, 2016 @02:02PM (#11268719)
Java has a slow startup time. By breaking out modules, they will significantly be able to reduce the overhead.
Re:Jigsaw Finally Arrives in JDK 9 by mike_hearn on Saturday March 12, 2016 @08:37AM (#11272798)
Java starts in about 50 msec. Modularity won't make much if any difference to that.

The primary benefits are better security, encapsulation and the jlink tool that lets you build standalone app-specific bundled JREs.