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The other advantages of Java 9 Modularity

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Dear Author,

In theory, we know that the advantages of using Java module system are

It provides a reliable configuration and strong encapsulation that would prevent

1. Brittle, error-prone classpath (AKA JAR Hell)

2. JDK into modules so that we only use what we need contrary to the prior JDK versions
Ref: webpage

what are the other selling points that Java 9 modularity presents?

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Those two are pretty significant, but there are indeed a few more:

  • strong encapsulation will improve security of the platform and maintainability of the platform and all projects that start using it
  • building a module graph may improve launch performance (I assume, not much, though)
  • with jlink you can create runtime images that only contain the Java module you want or images that include your entire application

  • That said, I think if someone doesn't buy the module system for strong encapsulation alone, they're unlikely to buy it as a whole.
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