Latest version of org.eclipse.xtext:org.eclipse.xtext.xbase
https://javadoc.io/doc/org.eclipse.xtext/org.eclipse.xtext.xbase
Current version 2.21.0.M2
https://javadoc.io/doc/org.eclipse.xtext/org.eclipse.xtext.xbase/2.21.0.M2
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.eclipse.xtext/org.eclipse.xtext.xbase/2.21.0.M2/package-list