The Scala Eclipse plugin page says: * Support for Eclipse plugin and OSGi development including hyperlinking to Scala source from plugin.xml and manifest files.
How does
After adding Scala Nature to the plug-in project, don't forget to include scala.library among the dependencies of your plugin (and update the corresponding run and product configuration)! (Additionally, if another JRE system library appears in the build path when adding Scala Nature, you can safely remove it to avoid the RequiredExecutionEnvironment warning.)