Per,

> Your installed Java implementation is not supported.

Tha's a good candidate for configure.ac

> http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Out of question, sorry: I strictly refuse to install/use anything coming from oracle

> Patches welcome.

I have too many projects under my umbrella already :)

Cheers,
David