@Test
  public void testEnableSubscriptionConflationAttribute() throws Exception {
    CacheCreation cache = new CacheCreation();
    RegionAttributesCreation attrs = new RegionAttributesCreation(cache);
    attrs.setEnableSubscriptionConflation(true);
    cache.createRegion("root", attrs);
    testXml(cache);
    assertEquals(true, cache.getRegion("root").getAttributes().getEnableSubscriptionConflation());
  }
Test EnableSubscriptionConflation region attribute

@since GemFire 5.7
geode-core/src/distributedTest/java/org/apache/geode/cache30/CacheXml66DUnitTest.java