protected EPackageData readEPackage() throws IOException
    {
      int id = readCompressedInt();
      if (ePackageDataList.size() <= id)
      {
        EPackageData ePackageData = new EPackageData();
        String nsURI = readString();
        URI uri = readURI();
        if (resourceSet != null)
        {
          ePackageData.ePackage = EPackage.Registry.INSTANCE.getEPackage(nsURI);
          if (ePackageData.ePackage == null)
          {
            ePackageData.ePackage = (EPackage)resourceSet.getEObject(uri, true);
          }
        }
        else
        {
          ePackageData.ePackage = EPackage.Registry.INSTANCE.getEPackage(nsURI);
        }
        ePackageData.eClassData = new EClassData [ePackageData.ePackage.getEClassifiers().size()];
        ePackageDataList.add(ePackageData);
        return ePackageData;
      }
      else
      {
        return ePackageDataList.get(id);
      }
    }