@Override
  public Set entrySet(boolean recursive) {
    if (recursive) {
      throw new UnsupportedOperationException(
          "Getting entries recursively is not supported.");
    }

    Set set = new HashSet();
    for (final Object o : values.entrySet()) {
      final Map.Entry entry = (Map.Entry) o;
      set.add(new Entry(entry.getKey(), entry.getValue()));
    }

    return set;
  }
Adds a subregion with the given name to this region


@throws RegionExistsException If a subregion with <code>name</code> already exists
geode-core/src/main/java/org/apache/geode/internal/cache/xmlcache/RegionCreation.java