8081820: javadoc does not report warnings in case of multiple "@param" tags for the same parameter and multiple "@return" tags for the same method.
Reviewed-by: jjg
Contributed-by: istomin.den@gmail.com
DuplicateParamTest.java:18: warning: @param "s" has already been specified
* @param s two
^
DuplicateParamTest.java:19: warning: @param "s" has already been specified
* @param s three
^
2 warnings