private static void releaseLatch(StoppableCountDownLatch latch) {
    if (latch == null) {
      return;
    }
    latch.countDown();
  }
Used to cause cache listener events to wait until the after region create event is delivered.

@since GemFire 5.0
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java