Java exception running jenkins

[Mike Pumford <mpumford%mudcovered.org.uk@localhost>]

While attempting to setup a Multi-branch pipeline with Jenkins 2.213 on 
my NetBSD 9.0-RC system I keep getting:
2020-01-11 23:54:30.896+0000 [id=950]   INFO 
j.b.MultiBranchProject$BranchIndexing#run: jsmonitor #20200111.235429 
branch indexing action completed: NOT_BUILT in 1.4 sec
2020-01-11 23:54:30.897+0000 [id=950]   SEVERE 
hudson.model.Executor#finish1: Executor threw an exception
java.lang.UnsatisfiedLinkError: 
sun.nio.fs.BsdNativeDispatcher.getmntonname0(J)[B
        at sun.nio.fs.BsdNativeDispatcher.getmntonname0(Native Method)
        at 
sun.nio.fs.BsdNativeDispatcher.getmntonname(BsdNativeDispatcher.java:61)

Doing some digging around on the web led to:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241317

Does a similar fix need to be applied in pkgsrc, can it be lifted from 
FreeBSD?

My JDK package version is : openjdk8-1.8.232 which is the same as the 
one where the FreeBSD bug was reported?

Mike