FULL PRODUCT VERSION :
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows 7 64 Bit

A DESCRIPTION OF THE PROBLEM :
java.time.ZonedDateTime API get(IsoFields.WEEK_OF_WEEK_BASED_YEAR) is returning incorrect Week of Year for the Year 2049 (1st to 3rd Jan of 2049).

Check the sample output
=====================
Date provided -> 2049-01-02T03:48:00Z
Using ZonedDateTime API:: Year 2049 weekOfYear 53
Using Calendar API:: Year 2049 weekOfYear 1




STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the code given in "Source code for an executable test case:" field.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
2nd Jan of 2019 should be First week of 2049, instead it is showing as 53rd week of 2049
ACTUAL -
2nd Jan of 2019 should be First week of 2049, instead it is showing as 53rd week of 2049

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.Date;
import java.time.Instant;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.IsoFields;
import java.util.Calendar;

/**
 * Created by kanchan on 08-01-2017.
 */
public class ZonedDateTimeTest {

    public static void main(String[] args) throws InterruptedException {
        String instantStr = "2049-01-02T03:48:00Z";
        System.out.println("Date provided -> " + instantStr);

        ZonedDateTime utcTimestamp = parseToInstant(instantStr).atZone(ZoneOffset.UTC);
        int year = utcTimestamp.getYear();
        int weekOfYear = utcTimestamp.get(IsoFields.WEEK_OF_WEEK_BASED_YEAR);
        System.out.println("Using ZonedDateTime API:: Year " + year + " weekOfYear " + weekOfYear);


        Date d1 = Date.from(parseToInstant(instantStr));
        Calendar cl = Calendar.getInstance();
        cl.setTime(d1);
        int year1 = cl.get(Calendar.YEAR);
        int weekOfYear1 = cl.get(Calendar.WEEK_OF_YEAR);
        System.out.println("Using Calendar API:: Year " + year1 + " weekOfYear " + weekOfYear1);
    }

    public static Instant parseToInstant(final String ISODate) {
        return DateTimeFormatter.ISO_OFFSET_DATE_TIME.parse(ISODate, Instant::from);
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
We are using Calendar API, but did not expect new API like ZonedDateTime will blow like this.