Please create a JIRA issue at
https://issues.apache.org/jira/browse/MJAVADOC and a pullrequest.
First comments: I suggest to rename it to addStylesheet, and I don't think
a property makes sense here (e.g. do you really want to set it like 'mvn
javadoc:javadoc -Dadd-stylesheet=some/path/to/s
Support for multiple stylesheets in javadoc was added to OpenJDK 10
as JDK-8189217 [1].
I suggest to add a new configuration parameter "addstylesheet" to Maven
JavaDoc Plugin. This value should passed as parameter "--add-stylesheet" to
javadoc command line.
There is a fork on github which impleme
