code: public static Integer getMinHash(final String xml, final Integer xor) {
          return getMinHashInternal(cleanXMLForMinHash(xml), xor);
      }
docs: Returns the minimum hash of the sentences in an XML file.
  @param xml The xml to analyse
  @param xor the number to xor the hash against. Null if the standard hashCode() method should be used alone.
  @return The minimum hash