try ( SmbResource f = createTestFile() ) {
            try {
                long orig = f.createTime();
                long time = System.currentTimeMillis() - 60 * 60 * 12;
                f.setCreateTime(time);
                long newTime = f.createTime();
                if ( newTime == orig ) {
                    Assume.assumeTrue("Create time was not changed", false);
                }