public static Object putKey1Val1() {
    try {
      Region region = cache.getRegion(SEPARATOR + REGION_NAME);
      assertNotNull(region);

      region.create("key1", "value1");
      return eventId;
    } catch (Exception e) {
      fail("put failed due to ", e);
    }
    return null;
  }
does a put and return the eventid generated. Eventid is caught in the listener and stored in a
static variable*
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ha/HAEventIdPropagationDistributedTest.java