code: public static Multimap<String, String> getParametersFromRawQuery(String rawQuery) {
  
          Multimap<String, String> result = ArrayListMultimap.create();
          if (rawQuery != null) {
              for (String keyValuePair : CmsStringUtil.splitAsList(rawQuery, "&")) {
                  try {
                      String decodedKeyValue = URLDecoder.decode(keyValuePair, "UTF-8");
                      int eqPos = decodedKeyValue.indexOf("=");
                      if (eqPos < 0) {
                          decodedKeyValue = decodedKeyValue + "=";
                          eqPos = decodedKeyValue.indexOf("=");
                      }
                      String key = decodedKeyValue.substring(0, eqPos);
                      String value = decodedKeyValue.substring(eqPos + 1);
                      result.put(key, value);
                  } catch (UnsupportedEncodingException e) {
                      // UTF8 should be present
                  }
              }
          }
          return result;
      }
docs: Parses the parameter map from a raw query string.<p>
  
  @param rawQuery the raw query string
  
  @return the parameter map