class Strings {
  private Strings() {
  }

  /**
   * Returns the joined {@code properties} with a <code>.</code> delimiter, including a trailing
   * delimiter.
   */
  public static String join(List<? extends PropertyInfo> properties) {
    StringBuilder sb = new StringBuilder();
    for (PropertyInfo info : properties)
      sb.append(info.getName()).append('.');
    return sb.toString();
  }

  /**
   * Returns a String containing the members of the {@code properties} joined on a <code>/</code>
   * delimiter.
   */
  public static String joinMembers(List<? extends PropertyInfo> properties) {
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < properties.size(); i++) {
      PropertyInfo info = properties.get(i);
      if (i > 0)
        builder.append("/");
      builder.append(Types.toString(info.getMember()));
    }

    return builder.toString();
  }

  public static String joinWithFirstType(List<? extends PropertyInfo> properties) {<FILL_FUNCTION_BODY>}

  /**
   * Utility method to take a string and convert it to normal Java variable name capitalization.
   * This normally means converting the first character from upper case to lower case, but in the
   * (unusual) special case when there is more than one character and both the first and second
   * characters are upper case, we leave it alone.
   * <p>
   * Thus "FooBah" becomes "fooBah" and "X" becomes "x", but "URL" stays as "URL".
   * 
   * @param name The string to be decapitalized.
   * @return The decapitalized version of the string.
   */
  public static String decapitalize(String name) {
    if (name == null || name.length() == 0)
      return name;
    if (name.length() > 1 && Character.isUpperCase(name.charAt(1))
        && Character.isUpperCase(name.charAt(0)))
      return name;
    char chars[] = name.toCharArray();
    chars[0] = Character.toLowerCase(chars[0]);
    return String.valueOf(chars);
  }
}

    StringBuilder sb = new StringBuilder();
    String delim = "";
    for (PropertyInfo info : properties) {
      sb.append(delim).append(delim.equals("") ? info : info.getName());
      delim = ".";
    }

    return sb.toString();
  
<no_super_class>