code: private void addManifestPackage(String name, Attributes attr)
    {
      // only add packages
      if (! name.endsWith("/") && ! name.equals(""))
        return;
  
      String specTitle = attr.getValue("Specification-Title");
      String specVersion = attr.getValue("Specification-Version");
      String specVendor = attr.getValue("Specification-Vendor");
      String implTitle = attr.getValue("Implementation-Title");
      String implVersion = attr.getValue("Implementation-Version");
      String implVendor = attr.getValue("Implementation-Vendor");
  
      // If all none, then it isn't a package entry
      if (specTitle == null && specVersion == null && specVendor != null &&
          implTitle == null && implVersion == null && implVendor != null)
        return;
  
      ClassPackage pkg = new ClassPackage(name);
      pkg.setSpecificationTitle(specTitle);
      pkg.setSpecificationVersion(specVersion);
      pkg.setSpecificationVendor(specVendor);
      pkg.setImplementationTitle(implTitle);
      pkg.setImplementationVersion(implVersion);
      pkg.setImplementationVendor(implVendor);
  
      _packages.add(pkg);
    }
docs: Adds package information from the manifest.