code: public String getRelativePath() {
      StringBuilder sb = new StringBuilder();
      String pkg = typeRef.getPackageName().replace('.', '/');
      if (pkg.length() > 0) {
        sb.append(pkg);
        sb.append('/');
      }
      appendDeclaringTypes(typeRef, '$', sb);
      sb.append(typeRef.getSimpleName());
      sb.append(".class");
      return sb.toString();
    }
docs: Returns the relative classfile path.