@Override
  public Region<K, V> create(String name)
      throws CacheExistsException, RegionExistsException, CacheWriterException, TimeoutException {
    if (internalRegionArguments == null) {
      return super.create(name);
    }
    try {
      return getCache().createVMRegion(name, getRegionAttributes(), internalRegionArguments);
    } catch (IOException | ClassNotFoundException e) {
      throw new InternalGemFireError("unexpected exception", e);
    }
  }
Returns the region attributes that would currently be used to create the region.
geode-core/src/main/java/org/apache/geode/internal/cache/InternalRegionFactory.java