Neon: how to run on jdk9?

Question

Just started playing with jdk9 - and kind-of stuck right at the beginning:

• downloaded and extracted eclipse-java-neon-m4a-win32
• installed java 9 supp

Answer 1

This issue sometimes due to having a different version of java in the machine. I solved this issue to update the .ini file with the correct version. Below configuration is working for me.

• startup
  plugins/org.eclipse.equinox.launcher_1.4.0.v20161219-1356.jar
• vm
  C:\Program Files\Java\jdk1.8.0_202\bin\javaw.exe
• vmargs
  
• Dosgi.requiredJavaVersion=1.8
  
• Xmx2G
  
• Xms200m
  
• XX:MaxPermSize=512m
  

Answer 2

Eclipse Oxygen.1a (4.7.1a) Release

Since a lot of Q&A's have been marked duplicate of this and the already suggested solutions are nevertheless hacky.

Update as of 11 October,2017 - You shall upgrade to the latest eclipse package Eclipse Oxygen.1a (4.7.1a) which is marked as released and supports Java 9.

Answer 3

Edit: You can download the latest version of eclipse which has support for Java 9 - https://www.eclipse.org/downloads/eclipse-packages/

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I am running Java(TM) SE Runtime Environment (build 9-ea+158) and eclipse Version: Neon.2 Release (4.6.2) - Build id: 20161208-0600

Somehow the solutions with -Djdk.launcher.addmods= and -addmods using values java.se.ee or java.annotations.common did not work.

Below is the solution that worked for me:

--add-modules=java.se.ee

Source: https://issues.jboss.org/browse/JBIDE-22417?focusedCommentId=13310535&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13310535

Answer 4

Your eclipse.ini is wrong for specifying the JVM. First of all, the -vm option needs to be near the end, right before any -vmargs line. Second, you don't specify the location of the bin folder, rather the java executable (or dll). See the eclipse.ini wiki page for details (and pay careful attention to the details written there).

By the way, where did you get the info to write eclipse.ini the way you did? I'd like to know the source in hopes of correcting that misinformation.

Answer 5

Adding this in eclipse.ini worked for me

--add-modules=java.se.ee   
-XX:+IgnoreUnrecognizedVMOptions 

Answer 6

I had got the same error. org.eclipse.e4.core.di.InjectionException: java.lang.NoClassDefFoundError: javax/annotation/PostConstruct

Resolved it by uninstalling all different versions of java and installed just 1.8.0_231.

Worked finally.

Java 8 installation link - https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Scala IDE for Eclipse:- version - 4.7.0 http://scala-ide.org/download/sdk.html