protected void addDependentsOf(
      IPath path,
      boolean isStructuralChange,
      StringSet qualifiedNames,
      StringSet simpleNames,
      StringSet rootNames) {
    path = path.setDevice(null);
    if (isStructuralChange) {
      String last = path.lastSegment();
      if (last.length() == TypeConstants.PACKAGE_INFO_NAME.length)
        if (CharOperation.equals(last.toCharArray(), TypeConstants.PACKAGE_INFO_NAME)) {
          path =
              path.removeLastSegments(
                  1); // the package-info file has changed so blame the package itself
          /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=323785, in the case of default package,
            there is no need to blame the package itself as there can be no annotations or documentation
            comment tags in the package-info file that can influence the rest of the package. Just bail out
            so we don't touch null objects below.
          */
          if (path.isEmpty()) return;
        }
    }

    if (isStructuralChange && !this.hasStructuralChanges) {
      this.newState.tagAsStructurallyChanged();
      this.hasStructuralChanges = true;
    }
    // the qualifiedStrings are of the form 'p1/p2' & the simpleStrings are just 'X'
    rootNames.add(path.segment(0));
    String packageName = path.removeLastSegments(1).toString();
    boolean wasNew = qualifiedNames.add(packageName);
    String typeName = path.lastSegment();
    int memberIndex = typeName.indexOf('$');
    if (memberIndex > 0) typeName = typeName.substring(0, memberIndex);
    wasNew = simpleNames.add(typeName) | wasNew;
    if (wasNew && JavaBuilder.DEBUG)
      System.out.println(
          "  will look for dependents of " //$NON-NLS-1$
              + typeName
              + " in "
              + packageName); //$NON-NLS-1$
  }