public Object badIgnored() {
      return new BadEquals();
    }

    // primitive ignored
    public int returnsInt() {
      throw new UnsupportedOperationException();
    }

    // void ignored
    public void voidMethod() {
      throw new UnsupportedOperationException();
    }

    // non-public method ignored
    static Object badButNotPublic() {
      return new BadEquals();
    }
  }

  /*
   * absent = ZERO isn't required, since unmodList.add() must
   * throw regardless, but it keeps the method name accurate.
   */
  public void testAdd_unsupportedPresent() {
    assertThrows(UnsupportedOperationException.class, () -> getList().add(e0()));
  }

  @CollectionFeature.Require(value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES})
  @CollectionSize.Require(absent = ZERO)
  public void testAdd_supportedNullPresent() {

@NullUnmarked
public class ImmutableMapWithBadHashesMapInterfaceTest
    extends AbstractImmutableMapMapInterfaceTest<Object, Integer> {
  @Override
  protected Map<Object, Integer> makeEmptyMap() {
    throw new UnsupportedOperationException();
  }

  @Override
  protected Map<Object, Integer> makePopulatedMap() {
    Colliders colliders = new Colliders();
    return ImmutableMap.of(
        colliders.e0(), 0,
        colliders.e1(), 1,

    expectAdded(e0());
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  @CollectionSize.Require(absent = ZERO)
  public void testAddAll_unsupportedAllPresent() {
    assertThrows(
        UnsupportedOperationException.class, () -> getList().addAll(MinimalCollection.of(e0())));
    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_ADD)
  public void testAddAll_withDuplicates() {

    }

    @Override
    public boolean isLeaf() {
        return node.children().isEmpty();
    }

    @Override
    public void setValue(Object value) {
        throw new UnsupportedOperationException();
    }

    @Override
    public NodeIterator childIterator(NodeTest test, boolean reverse, NodePointer startWith) {
        return new Xpp3DomNodeIterator(this, test, reverse, startWith);
    }

      UnhashableObject that = (UnhashableObject) object;
      return this.value == that.value;
    }
    return false;
  }

  @Override
  public int hashCode() {
    throw new UnsupportedOperationException();
  }

  // needed because otherwise Object.toString() calls hashCode()
  @Override
  public String toString() {
    return "DontHashMe" + value;
  }

  @Override

     */
    @Override
    public Requirement clone() {
        try {
            return (Requirement) super.clone();
        } catch (CloneNotSupportedException e) {
            throw new UnsupportedOperationException(e);
        }
    }

    map.put("one", 1);
    map.put("two", 2);
    map.put("three", 3);
    return SerializableTester.reserialize(map);
  }

  @Override
  protected SortedMap<String, Integer> makeEmptyMap() throws UnsupportedOperationException {
    NavigableMap<String, Integer> map = new SafeTreeMap<>();
    return SerializableTester.reserialize(map);
  }

  @Override
  protected String getKeyNotInPopulatedMap() {
    return "minus one";
  }

            }
            return array[i++];
          }
        };

    assertTrue(iterator.hasNext());
    assertEquals("a", iterator.next());
    assertThrows(UnsupportedOperationException.class, () -> iterator.remove());
  }

    assertThrows(UnsupportedOperationException.class, () -> multimapView.put("baz", 3));
    assertThrows(
        UnsupportedOperationException.class, () -> multimapView.putAll("baz", singleton(3)));
    assertThrows(UnsupportedOperationException.class, () -> multimapView.putAll(multimap));
    assertThrows(
        UnsupportedOperationException.class,