code: public void setCaseCanonicalizationLocale(final Locale caseCanonicalizationLocale) {
          if (caseCanonicalizationLocale == null) {
              this.caseCanonicalizationLocale = Locale.getDefault();
          } else {
              this.caseCanonicalizationLocale = caseCanonicalizationLocale;
          }
      }
docs: Assign the {@link Locale} in which all casing canonicalizations will occur.
  A {@code null} will be treated as {@link java.util.Locale#getDefault()}.
  
  @param caseCanonicalizationLocale Case-canonicalization locale