Name: erR10175 Date: 10/29/2003


 
  The methods

public final long getTimeInMillis(Calendar startInstant)
public final long getTimeInMillis(Date startInstant)

of the class javax.xml.datatype.Duration return unexpected values for big
durations that are still in the range of the type long.
 
The documentation of the methods do not specify an acceptable range of the duration
object. So the whole range of the type long (from Long.MIN_VALUE up to Long.MAX_VALUE
of milliseconds) is expected to be processed correctly. But results are incorrect
for long durations greater than 185542587187199999 ms. Some more incorrectly processed
values are shown in the sample below. All of those values measured in milliseconds are
expected to be within the range of the type long.

This bug affects new test in JCK 1.5 (not yet integrated)
   api/javax_xml/datatype/Duration/index.html#DurationTests[GetTimeInMillis002]
   api/javax_xml/datatype/Duration/index.html#DurationTests[GetTimeInMillis003]
   api/javax_xml/datatype/Duration/index.html#DurationTests[GetTimeInMillis006]
   api/javax_xml/datatype/Duration/index.html#DurationTests[GetTimeInMillis007]

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

public class test {
    static final long [] ms = {
        0,
        185542587187199998L,
        185542587187199999L,
        185542587187200000L,
        185542587187200001L,
        9223372036854775807L,
    };
    static final String [] msS = {
        "-PT9223372036854775.808S",
        "-PT1S",
        "PT0S",
        "PT185542587187199.999S",
        "PT9223372036854775.807S",
    };
    public static void main(String [] args) {
        
        Calendar c = new GregorianCalendar();
        c.setTimeInMillis(0);

        for(int i = 0; i < ms.length; ++i) {
            System.out.println("new Duration(" + ms[i]
                + "L).getTimeInMillis(c) returns "
                + new Duration(ms[i]).getTimeInMillis(c));
        }
        for(int i = 0; i < msS.length; ++i) {
            System.out.println("new Duration(\"" + msS[i]
                + "\").getTimeInMillis(c) returns "
                + new Duration(msS[i]).getTimeInMillis(c));
        }
    }
}
----------------------------------------------------

------------------------------------------------ log
$javac test.java && java -cp . -showversion test
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b25)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b25, mixed mode)

new Duration(0L).getTimeInMillis(c) returns 0
new Duration(185542587187199998L).getTimeInMillis(c) returns 185542587187199998
new Duration(185542587187199999L).getTimeInMillis(c) returns 185542587187199999
new Duration(185542587187200000L).getTimeInMillis(c) returns -185542587187200000
new Duration(185542587187200001L).getTimeInMillis(c) returns -185542587187199999
new Duration(9223372036854775807L).getTimeInMillis(c) returns -53757322505224193
new Duration("-PT9223372036854775.808S").getTimeInMillis(c) returns 1511828488192
new Duration("-PT1S").getTimeInMillis(c) returns -1000
new Duration("PT0S").getTimeInMillis(c) returns 0
new Duration("PT185542587187199.999S").getTimeInMillis(c) returns -1
new Duration("PT9223372036854775.807S").getTimeInMillis(c) returns -1511828488193
----------------------------------------------------

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