Java™ 9 support has not yet landed in our standard download packages. But you can add an early access preview to your existing Eclipse Mars install.
The Eclipse Java™ 9 Support (BETA) contains the following:
- ability to add JRE and JDK 9 as installed JRE;
- support for JavaSE-1.9 execution environment; and
- ability to create Java and Plug-in projects that use a JRE or JDK 9.
At the moment Eclipse must be run with Java™ 9 if you want to use Java™ 9 in your workspace. You can download from http://www.oracle.com/technetwork/articles/java/ea-jsp-142245.html.
This is an implementation of an early-draft specification developed under the Java Community Process (JCP) and is made available for testing and evaluation purposes only. The code is not compatible with any specification of the JCP.
Install the Java 9 Beta via the Eclipse Marketplace: