How to configure an IntelliJ IDEA project that uses Jigsawġ) Download the JDK 9 with Project Jigsaw (not to be confused with the standard JDK 9). Note that the standard JDK9 can be used with IntelliJ IDEA without any limitations - just as any other JDK. However if you’d like to try Jigsaw with IntelliJ IDEA already, below you’ll find instructions on that. I expect it to appear closer to June, 2016 when the feature hits Feature Complete. Since the implementation of the module system is under heavy development and may change, IntelliJ IDEA doesn’t provide official support for it yet. For those who’d like to play with modules and learn how to define them, there is a step-by-step tutorial.

Though the release of Java 9 is scheduled for March, 2017, an early preview of the JDK 9 with Project Jigsaw is available. In short, Project Jigsaw is aimed at replacing the error-prone “classpath” with a reliable configuration as well as breaking the monolithic JDK into modules that could be deployed and used independently. If you’re not familiar yet with this feature, I recommend you to watch one of the talks about it, or read its design overview by Mark Reinhold. The Java platform module system, known under the codename Project Jigsaw, is the main feature of Java 9. The JDK is a development environment for building applications and components using the Java programming language. Thank you for downloading this release of the Java Platform, Standard Edition Development Kit (JDK).

Using JDK 9 with Project Jigsaw in IntelliJ IDEA Java SE Development Kit 19.0.2 downloads.

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