src/share/classes/java/time/chrono/Era.java

*** 236,246 ****
      @Override
      default long getLong(TemporalField field) {
          if (field == ERA) {
              return getValue();
          } else if (field instanceof ChronoField) {
!             throw new UnsupportedTemporalTypeException("Unsupported field: " + field.getName());
          }
          return field.getFrom(this);
      }
  
      //-----------------------------------------------------------------------
--- 236,246 ----
      @Override
      default long getLong(TemporalField field) {
          if (field == ERA) {
              return getValue();
          } else if (field instanceof ChronoField) {
!             throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
          }
          return field.getFrom(this);
      }
  
      //-----------------------------------------------------------------------