@Override
  public boolean equals(@Nullable Object o) {
    if (o == null) return false;
    if (this == o) return true;
    if (this.getClass() != o.getClass()) return false;
    JsonSchemaObject object = (JsonSchemaObject)o;
    return Objects.equals(getFileUrl(), object.getFileUrl()) && Objects.equals(getPointer(), object.getPointer());
  }
@Override
  public boolean equals(@Nullable Object o)