private void helpTestMultipleIteratorsException() throws Exception {
    boolean expected = false;
    try {
      index =
          qs.createHashIndex("idHash", "p.ID", SEPARATOR + "portfolios p, p.positions.values p");
    } catch (UnsupportedOperationException e) {
      expected = true;
    }
    assertTrue(expected);
  }
test multiple iterators exception for hash index using partiioned region
geode-core/src/integrationTest/java/org/apache/geode/cache/query/internal/index/HashIndexQueryIntegrationTest.java