code: public ClassDoc[] specifiedClasses() {
          ListBuffer<ClassDocImpl> classesToDocument = new ListBuffer<ClassDocImpl>();
          for (ClassDocImpl cd : cmdLineClasses) {
              cd.addAllClasses(classesToDocument, true);
          }
          return (ClassDoc[])classesToDocument.toArray(new ClassDocImpl[classesToDocument.length()]);
      }
docs: Classes and interfaces specified on the command line.