Name: erR10175 Date: 11/14/2003


 
  The following constructors of the class javax.xml.datatype.XMLGregorianCalendar
  
public XMLGregorianCalendar(int year, int month, int date)
public XMLGregorianCalendar(int year, int month, int date, int hour, int minute)
public XMLGregorianCalendar(int year, int month, int date, int hour, int minute, second)

change a given date in case when the given date is in the range between October 4, 1582
and October 15, 1582.

The dates in that range are invalid for class GregorianCalendar with default
value of the cutover date, because October 4, 1582 (Julian) was followed
by October 15, 1582 (Gregorian) (for details see the description of
the class GregorianCalendar). But those dates are valid for XMLGregorianCalendar
which implements plain model of the Gregorian calendar (see XML Schema 1.0 spec).

In the test below, the date 'October 14, 1582' is used to create
an XMLGregorianCalendar, but the new calendar returns field values of
the date 'October 24, 1582'.
 
This bug affects new tests in JCK 1.5
   api/javax_xml/datatype/Duration/index.html#DurationTests[AddTo001]
   api/javax_xml/datatype/Duration/index.html#DurationTests[AddTo004]

The bug is found in jdk1.5.0/beta/b28.
The bug is not reproducible in jdk1.5.0/beta/b26.

To reproduce the bug compile and run the following code as shown
in the log below:
------------------------------ test.java
import javax.xml.datatype.Duration;
import javax.xml.datatype.XMLGregorianCalendar;
import java.util.Calendar;

public class test {

    static final int [][] values = {
        {2000, 1, 28},
        {2000, 1, 29}, // leap year
        {1, 0, 1},
        {1582, 9, 3}, // the day before
        {1582, 9, 4}, // the last day of Julian calendar
        {1582, 9, 5}, // the next day
        {1582, 9, 14}, // the day in between
        {1582, 9, 15}, // the first day of Gregorian calendar
        {1582, 9, 16}, // the next day
        {1969, 11, 31},
        {1970, 0, 1},
    };

    public static void main(String [] args) {
        StringBuffer result = new StringBuffer();
        for (int i = values.length; --i >= 0; ) {
            XMLGregorianCalendar calendar =
                new XMLGregorianCalendar(values[i][0], values[i][1], values[i][2]);

            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);
            int day = calendar.get(Calendar.DAY_OF_MONTH);
            if (year != values[i][0]
             || month != values[i][1]
             || day != values[i][2]) {
                result.append("\ndate fields were set to "
                            + year + "/" + (month+1) + "/" + day
                            + ", expected " + values[i][0] + "/"
                            + (values[i][1]+1) + "/" + values[i][2]);
            }
        }
        
        if (result.length() >0) {
            System.out.println("Failed: " + result);
        } else {
            System.out.println("OK");
        }
    }
}
----------------------------------------------------

------------------------------------------------ log
$javac test.java && java -cp . -showversion testjava version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b28)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b28, mixed mode)

Failed:
date fields were set to 1582/10/24, expected 1582/10/14
date fields were set to 1582/10/15, expected 1582/10/5
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