In all javafx modules there are places where there is a javadoc comment without summary.
This missed summary does not get highlighted as javadoc build warning or error.

Use "find in files" in any text editor - to look for -
Search 1 :
"/**
     * @return"
and

Search 2 :
"/** @return"

Search 1 results : 173 matches across 111 files
Search 2 results : 21 matches across 12 files


All these methods should have javadoc summary added to it along with existing @return statement.