Github user lewismc commented on the issue:
https://github.com/apache/jena/pull/474
@afs
> The problem is not html4/html5 (we can clean up the javadoc) but
compatible with java8 javadoc tool. Java8 build causes:
Got it.
> I'd prefer that the build uses java8 for java8 libraries because
cross-compiling does not catch changes in the runtime libraries.
So do you want to abandon this PR and state that Jena should be used with
JDK 1.8? If so I can close out this issue. Unless of course if you can propose
an alternative.
---
