CompactHashMap<Integer, String> map = CompactHashMap.create();
    map.put(1, "1");
    Entry<Integer, String> entry = getOnlyElement(map.entrySet());
    map.remove(1);
    entry.setValue("one");
    assertThat(map).containsEntry(1, "one");
  }

  public void testAllocArraysDefault() {
    CompactHashMap<Integer, String> map = CompactHashMap.create();