private void closeDiskStore(DiskStore diskStore) {
    DiskStoreImpl internalDiskStore = (DiskStoreImpl) diskStore;
    internalDiskStore.close();

    cache.removeDiskStore(internalDiskStore);
  }
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