code: public static String substringFirstRear(String str, String... delimiters) {
          assertStringNotNull(str);
          return doSubstringFirstRear(false, true, false, str, delimiters);
      }
docs: Extract rear sub-string from first-found delimiter.
  <pre>
  substringFirstRear("foo.bar/baz.qux", ".", "/")
  returns "bar/baz.qux"
  </pre>
  @param str The target string. (NotNull)
  @param delimiters The array of delimiters. (NotNull)
  @return The part of string. (NotNull: if delimiter not found, returns argument-plain string)