src/share/classes/java/time/temporal/WeekFields.java

*** 875,885 ****
          public String getDisplayName(Locale locale) {
              Objects.requireNonNull(locale, "locale");
              if (rangeUnit == YEARS) {  // only have values for week-of-year
                  LocaleResources lr = LocaleProviderAdapter.getResourceBundleBased()
                          .getLocaleResources(locale);
!                 ResourceBundle rb = lr.getFormatData();
                  return rb.containsKey("field.week") ? rb.getString("field.week") : getName();
              }
              return getName();
          }
  
--- 875,885 ----
          public String getDisplayName(Locale locale) {
              Objects.requireNonNull(locale, "locale");
              if (rangeUnit == YEARS) {  // only have values for week-of-year
                  LocaleResources lr = LocaleProviderAdapter.getResourceBundleBased()
                          .getLocaleResources(locale);
!                 ResourceBundle rb = lr.getJavaTimeFormatData();
                  return rb.containsKey("field.week") ? rb.getString("field.week") : getName();
              }
              return getName();
          }