code: private void processGroupData() throws IOException
     {
        DirectoryEntry dir = (DirectoryEntry) m_viewDir.getEntry("CGrouping");
        FixedMeta fixedMeta = new FixedMeta(new DocumentInputStream(((DocumentEntry) dir.getEntry("FixedMeta"))), 10);
        FixedData fixedData = new FixedData(fixedMeta, m_inputStreamFactory.getInstance(dir, "FixedData"));
        VarMeta varMeta = new VarMeta12(new DocumentInputStream(((DocumentEntry) dir.getEntry("VarMeta"))));
        Var2Data varData = new Var2Data(varMeta, new DocumentInputStream(((DocumentEntry) dir.getEntry("Var2Data"))));
  
        //System.out.println(fixedMeta);
        //System.out.println(fixedData);
        //System.out.println(varMeta);
        //System.out.println(varData);
  
        GroupReader14 reader = new GroupReader14();
        reader.process(m_file, fixedData, varData, m_fontBases);
     }
docs: Read group definitions.
  
  @throws IOException