protected boolean isClusterVersionUnknownOrLessThan(Version version) {
        Version clusterVersion = getNodeEngine().getClusterService().getClusterVersion();
        return clusterVersion.isUnknownOrLessThan(version);
    }
@Test
    public void testClusterVersion_isUnknownOrLessThan_nextMinorVersion() {
        assertTrue(object.isClusterVersionUnknownOrLessThan(NEXT_MINOR_VERSION));
    }