scaladoc-api-mappings-java-enum-bug

To replicate, run sbt ++doc to generate docs for all scala versions and then open target/scala-<SCALA_VERSION>/api/ScaladocJavaEnumBug.html. Search for StandardOpenOption$ and you can see that the generate hyperlink https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/file/StandardOpenOption$.html#SYNC:java.nio.file.StandardOpenOption(SYNC) is incorrect because of that $ (it should instead be https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/file/StandardOpenOption.html#SYNC:java.nio.file.StandardOpenOption(SYNC))