[oXygen-user] where's Saxon?

Sometimes I want to execute some XSLT (2.0) transformations from the (Mac OS X) command-line. In the past, I've just issued java -jar /Applications/oxygen/lib/saxon9.jar [buncha args here] but that no longer works, as the file saxon9.jar does not exist in the current release of oXygen. But what replaces it? I tried what seemed (to me) likely, saxon9sa.jar, but got the error message "Failed to load Main-Class manifest attribute ..." Any thoughts?