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

@@ -63,16 +63,19 @@
 import java.time.Clock;
 import java.time.DateTimeException;
 import java.time.Instant;
 import java.time.LocalDate;
 import java.time.ZoneId;
+import java.time.format.ResolverStyle;
 import java.time.temporal.ChronoField;
 import java.time.temporal.TemporalAccessor;
+import java.time.temporal.TemporalField;
 import java.time.temporal.ValueRange;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
+import java.util.Map;
 
 /**
  * The Minguo calendar system.
  * <p>
  * This chronology defines the rules of the Minguo calendar system.

@@ -251,20 +254,23 @@
         }
         return new MinguoDate(LocalDate.from(temporal));
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     public ChronoLocalDateTime<MinguoDate> localDateTime(TemporalAccessor temporal) {
         return (ChronoLocalDateTime<MinguoDate>)super.localDateTime(temporal);
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     public ChronoZonedDateTime<MinguoDate> zonedDateTime(TemporalAccessor temporal) {
         return (ChronoZonedDateTime<MinguoDate>)super.zonedDateTime(temporal);
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     public ChronoZonedDateTime<MinguoDate> zonedDateTime(Instant instant, ZoneId zone) {
         return (ChronoZonedDateTime<MinguoDate>)super.zonedDateTime(instant, zone);
     }
 
     //-----------------------------------------------------------------------

@@ -290,11 +296,11 @@
         }
         return (era == MinguoEra.ROC ? yearOfEra : 1 - yearOfEra);
     }
 
     @Override
-    public Era eraOf(int eraValue) {
+    public MinguoEra eraOf(int eraValue) {
         return MinguoEra.of(eraValue);
     }
 
     @Override
     public List<Era> eras() {

@@ -319,6 +325,12 @@
             }
         }
         return field.range();
     }
 
+    //-----------------------------------------------------------------------
+    @Override  // override for return type
+    public MinguoDate resolveDate(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) {
+        return (MinguoDate) super.resolveDate(fieldValues, resolverStyle);
+    }
+
 }