Hi Keith, Can you fix this bug? http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=71 I suspect you'll need to wrap the privileged operations you added in patches/icedtea-use-system-tzdata.patch in AccessController.doPrivileged calls. Here's the Fedora report: https://bugzilla.redhat.com/show_bug.cgi?id=314211 Thanks, Tom