FULL PRODUCT VERSION :
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
java version "1.8.0_162-ea"
Java(TM) SE Runtime Environment (build 1.8.0_162-ea-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b03, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
OSX 10.11.6

A DESCRIPTION OF THE PROBLEM :
LocalDate.minusDays() does not decrement the year counter correctly after the first rolled over year.

this can be illustrated using a for loop and subtracting days. The 2017-2016 year boundary decrements correctly, but the subsequent ones do not. This is an excerpt of the 2016-2015 boundary:
01/5/2016
01/4/2016
01/3/2016
01/2/2016
01/1/2016
12/31/2016
12/30/2016
12/29/2016
12/28/2016
12/27/2016
12/26/2015
12/25/2015
12/24/2015
12/23/2015
12/22/2015

Notice how the 2016 year value extends into the last days of December, even though it should be December 2015.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;

public class DateTimeDebug {

    public static void main(String[] args) {

       // also LocalDate.now(); has the same bug
        LocalDate today = LocalDate.of(2017, 12, 26);

        // subtract 2 years
        System.out.println("2017/12/26 minus 730 days should be: 2015/12/26, but was: " + today.minusDays(730).format(DateTimeFormatter.ofPattern("MM/d/YYYY")));
    }
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
2017/12/26 minus 730 days should be: 2015/12/26, but was: 12/27/2016
ACTUAL -
2017/12/26 minus 730 days should be: 2015/12/26, but was: 12/27/2016

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;

public class DateTimeDebug {

    public static void main(String[] args) {

       // also LocalDate.now(); has the same bug
        LocalDate today = LocalDate.of(2017, 12, 26);

        // subtract 2 years
        System.out.println("2017/12/26 minus 730 days should be: 2015/12/26, but was: " + today.minusDays(730).format(DateTimeFormatter.ofPattern("MM/d/YYYY")));
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
minusYears also broken.

it seems like an edge case with the start date (when "now" is), as this was working fine in early november, and previous months.