}

    @Override
    public int hashCode() {
      return identity().hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof DummyHandler) {
        DummyHandler that = (DummyHandler) obj;
        return identity().equals(that.identity());
      } else {
        return false;
      }
    }

    private DummyProxy identity() {

    private final AnInterface i;

    public HasAnInterface(AnInterface i) {
      this.i = i;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof HasAnInterface) {
        HasAnInterface that = (HasAnInterface) obj;
        return i.equals(that.i);
      } else {
        return false;
      }
    }

    @Override
    public int hashCode() {

        super(Column.this);
      }

      @Override
      public boolean contains(@Nullable Object obj) {
        return StandardTable.this.contains(obj, columnKey);
      }

      @Override
      public boolean remove(@Nullable Object obj) {
        return StandardTable.this.remove(obj, columnKey) != null;
      }

      @Override
      public boolean retainAll(Collection<?> c) {

    }

    @Override
    public int hashCode() {
      return ~predicate.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof NotPredicate) {
        NotPredicate<?> that = (NotPredicate<?>) obj;
        return predicate.equals(that.predicate);
      }
      return false;
    }

    @Override
    public String toString() {

    public C apply(@ParametricNullness A a) {
      return g.apply(f.apply(a));
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof FunctionComposition) {
        FunctionComposition<?, ?, ?> that = (FunctionComposition<?, ?, ?>) obj;
        return f.equals(that.f) && g.equals(that.g);
      }
      return false;
    }

    @Override
    public int hashCode() {

    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        // equal only to our TypeVariable implementation with identical bounds
        if (obj != null
            && Proxy.isProxyClass(obj.getClass())
            && Proxy.getInvocationHandler(obj) instanceof TypeVariableInvocationHandler) {

    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        // equal only to our TypeVariable implementation with identical bounds
        if (obj != null
            && Proxy.isProxyClass(obj.getClass())
            && Proxy.getInvocationHandler(obj) instanceof TypeVariableInvocationHandler) {

                if (first) {
                    first = false;
                } else {
                    buf.append(',');
                }
                buf.append(escapeJson(entry.getKey())).append(':').append(escapeJson(entry.getValue()));
            }
            buf.append('}');
        } else if (obj instanceof Integer || obj instanceof Long || obj instanceof Float || obj instanceof Double) {

    // instead of Object[].
    return delegateList().toArray(new Object[size()]);
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    return delegateList().equals(obj);
  }

  @Override
  public int hashCode() {
    return delegateList().hashCode();
  }

  @Override
  public UnmodifiableIterator<E> iterator() {

    @ParametricNullness
    public T get() {
      return function.apply(supplier.get());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof SupplierComposition) {
        SupplierComposition<?, ?> that = (SupplierComposition<?, ?>) obj;
        return function.equals(that.function) && supplier.equals(that.supplier);
      }
      return false;
    }

    @Override