DateTimeFormatterTest.java

import java.time.Instant;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAccessor;
import java.util.Date;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class DateTimeFormatterTest{
    private final static String pattern = "yyyy-MM-dd HH:mm:ss.SSS z";
    private final static DateTimeFormatter dtFormatter = DateTimeFormatter.ofPattern(pattern);

    public static Date stringToDate(String dateString) {
        //これはダメ
        //return dtFormatter.parse(dateString,((Function<TemporalAccessor,Instant>)Instant::from).andThen(Date::from))
        
        //これはOK
        return dtFormatter.parse(dateString,DateTimeFormatterTest::taToDate);
    }
    private static Date taToDate(TemporalAccessor ta){
        Function<TemporalAccessor,Date> fun = ((Function<TemporalAccessor,Instant>)Instant::from).andThen(Date::from);
        return fun.apply(ta);
    }
    
    public static void main(String[] args){
        List<Date> ds = IntStream.range(00,59).parallel()
                .mapToObj(sec -> stringToDate("2015-12-16 14:"+String.format("%02d",sec)+":00.655 JST"))
                .collect(Collectors.toList());
        System.out.println(ds);// -> [Wed Dec 16 14:00:00 JST 2015, Wed Dec 16 14:01:00 JST 2015, Wed Dec 16 14:02:00 JST 2015, ..
    }
}