Latest version of org.scala-sbt:protocol_2.12
https://javadoc.io/doc/org.scala-sbt/protocol_2.12
Current version 1.4.3
https://javadoc.io/doc/org.scala-sbt/protocol_2.12/1.4.3
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.scala-sbt/protocol_2.12/1.4.3/package-list