About: http://webisa.webdatacommons.org/210581242

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So if you have a system process that uses javac, javadoc or a command other than java I believe you will not get the version in /opt.
http://www.w3.org/ns/prov#wasQuotedFrom	tecadmin.net