protected boolean isClusterVersionLessOrEqual(Version version) {
        Version clusterVersion = getNodeEngine().getClusterService().getClusterVersion();
        return clusterVersion.isLessOrEqual(version);
    }
@Test
    public void testClusterVersion_isLessOrEqual_currentVersion() {
        assertTrue(object.isClusterVersionLessOrEqual(CURRENT_CLUSTER_VERSION));
    }