private void awaitFuture(Future<Void> voidFuture)
      throws InterruptedException, ExecutionException, TimeoutException {
    voidFuture.get(5, MINUTES);
  }
Regression test for TRAC #41770: ConcurrentRegionOperationsJUnitTest fails with duplicate
create in an oplog
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/DiskRegionJUnitTest.java