Francois Tigeot has fixed wip/jdk16 to build on DragonFly. Note that this is in pkgsrc-wip, not ‘normal’ pkgsrc. The secret is to build lang/kaffe to bootstrap it, which requires CCVER=gcc41 to be set. Apparently kaffe will not build under gcc 4.4.
Why did he do it? To run OpenGrok, of course. He’s posted instructions on getting OpenGrok running on DragonFly. Note the Java crashes he reports in DragonFly 2.11 may already have been fixed.
p.s. I hated “Stranger in a Strange Land”.