(fs) test/java/nio/file/Files/Misc.java failing (sol)

JPRT jobs that run the jdk_nio tests jprt-host-x64-2 have started seeing a new failure, easy to reproduce by running with java.io.tmpdir set to /opt/jprt/T/P1/alan. The issue appears to be something zfs related. Here's a sample failure:

/java/re/jdk/8/latest/binaries/solaris-x64/bin/java -Djava.io.tmpdir=/opt/jprt/T/P1/alan Misc
Exception in thread "main" java.nio.file.AccessDeniedException: /opt/jprt/T/P1/alan/name2707464578579648081/foo
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
        at sun.nio.fs.UnixPath.openForAttributeAccess(UnixPath.java:787)
        at sun.nio.fs.SolarisAclFileAttributeView.setAcl(SolarisAclFileAttributeView.java:346)
        at Misc.testAccessMethods(Misc.java:326)
        at Misc.main(Misc.java:46)