private ObjectGroupObjectData createObjectData(DataNodeObjectData node) {
            ObjectGroupObjectData objectData = new ObjectGroupObjectData();
            objectData.cellIDArray = new CellIDArray(0, null);
            objectData.objectExGUIDArray = new ExGUIDArray(new ArrayList<>());
            objectData.data = new BinaryItem(ByteUtil.toListOfByte(node.objectData));
            return objectData;
        }
This method is used to create ObjectGroupObjectData instance from a data node object

@param node Specify the node object.
@return Return the ObjectGroupObjectData instance.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/onenote/fsshttpb/streamobj/ObjectGroupDataElementData.java