How to use

getContents

method

in

org.docx4j.openpackaging.parts.WordprocessingML.StyleDefinitionsPart

  ((StyleDefinitionsPart)part).getContents().setLatentStyles(null);
} else {
  deletions.add(r );                        

Style style = (Style)XmlUtils.unmarshalString(XML_TOCHeading_BasedOn_Nothing);
style.getBasedOn().setVal(HEADING1_STYLE);
documentPart.getStyleDefinitionsPart().getContents().getStyle().add(style);
documentPart.getStyleDefinitionsPart().getContents().getStyle().add(style);

  private void initializeStyleNames(WordprocessingMLPackage out) {
    final StyleDefinitionsPart styleDefinitionsPart = out.getMainDocumentPart().getStyleDefinitionsPart();
    try {
      final Styles contents = styleDefinitionsPart.getContents();
      final List<Style> styles = contents.getStyle();
      for (Style style : styles) {
        final String styleId = style.getStyleId();
        final String styleName = style.getName().getVal();
        styleIdToStyleName.put(styleId, styleName);
        nameToStyleStyleId.put(styleName, styleId);
      }
    } catch (Docx4JException e) {
      e.printStackTrace();
    }
  }
}

  ((StyleDefinitionsPart)part).getContents().setLatentStyles(null);
} else {
  deletions.add(r );                        

Style style = (Style)XmlUtils.unmarshalString(XML_TOCHeading_BasedOn_Nothing);
style.getBasedOn().setVal(HEADING1_STYLE);
documentPart.getStyleDefinitionsPart().getContents().getStyle().add(style);
documentPart.getStyleDefinitionsPart().getContents().getStyle().add(style);