I filed a bug in the JNA project to keep track of this. In the mean time, you can set the system property "hudson.os.solaris.ZFSInstaller.disabled=true" in your JVM to prevent Hudson from using ZFS (which leads to this JVM crash.)

This fix will be in 1.311.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@18998 71c3de6d-444a-0410-be80-ed276b4c234a