public Thumbnails unmarshall(JsonUnmarshallerContext context) throws Exception {
    Thumbnails thumbnails = new Thumbnails();

    int originalDepth = context.getCurrentDepth();
    String currentParentElement = context.getCurrentParentElement();
    int targetDepth = originalDepth + 1;

    JsonToken token = context.currentToken;
    if (token == null) token = context.nextToken();

    while (true) {
      if (token == null) break;

      if (token == FIELD_NAME || token == START_OBJECT) {
        if (context.testExpression("Format", targetDepth)) {
          context.nextToken();
          thumbnails.setFormat(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("Interval", targetDepth)) {
          context.nextToken();
          thumbnails.setInterval(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("Resolution", targetDepth)) {
          context.nextToken();
          thumbnails.setResolution(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("AspectRatio", targetDepth)) {
          context.nextToken();
          thumbnails.setAspectRatio(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("MaxWidth", targetDepth)) {
          context.nextToken();
          thumbnails.setMaxWidth(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("MaxHeight", targetDepth)) {
          context.nextToken();
          thumbnails.setMaxHeight(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("SizingPolicy", targetDepth)) {
          context.nextToken();
          thumbnails.setSizingPolicy(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
        if (context.testExpression("PaddingPolicy", targetDepth)) {
          context.nextToken();
          thumbnails.setPaddingPolicy(StringJsonUnmarshaller.getInstance().unmarshall(context));
        }
      } else if (token == END_ARRAY || token == END_OBJECT) {
        if (context.getLastParsedParentElement() == null
            || context.getLastParsedParentElement().equals(currentParentElement)) {
          if (context.getCurrentDepth() <= originalDepth) break;
        }
      }

      token = context.nextToken();
    }

    return thumbnails;
  }