OPERATING SYSTEM(S)
Solaris
FULL JDK VERSION(S):
1.3.1_13
DESCRIPTION:
Under the EST5EDT timezone, the 1.3.1 JDK returns incorrect time information for certain dates in periods when DST is active. One example is 08/01/1998.
The problem does not occur with the 1.4.2 JDK.
A testcase is provided at the end of this report. It compares the returned time with the expected time for 08/01/1998 in terms of the number of milliseconds elapsed since 01/01/1970. It can be run as follows:
    java DateTest 08/01/1998
Results for 1.3.1_13, with TZ=EST5EDT:
    Date entered = 08/01/1998, SQL Time =           901947600000
    Date entered = 08/01/1998, UTIL Time =          901947600000
    Expected Time result for 08/01/1998 :           901944000000
Results for 1.4.2_07 under identical conditions:
    Date entered = 08/01/1998, SQL Time =           901944000000
    Date entered = 08/01/1998, UTIL Time =          901944000000
    Expected Time result for 08/01/1998 :           901944000000
------ Start testcase DateTest.java ------
import java.util.*;
import java.text.*;
public class DateTest {
        public static void main ( String [] args ) {
                String enteredDate = args[0];
                String format = "MM/dd/yyyy";
                DateFormat df = new SimpleDateFormat(format);
                java.util.Date d = null;
                java.sql.Date date = null;
                df.setLenient(false);
                try {
                        d = df.parse(enteredDate);
                }
                catch (ParseException pe) {
                        throw new IllegalArgumentException(pe.getMessage());
                }
                date = new java.sql.Date(d.getTime());
                long dateTime = date.getTime();
                d = new java.util.Date(d.getTime());
                System.out.println("Date entered = "+enteredDate+", SQL Time = \t\t"+date.getTime());
                System.out.println("Date entered = "+enteredDate+", UTIL Time = \t\t"+d.getTime());
                System.out.println("Expected Time result for 08/01/1998 : \t\t901944000000");
        }
}
------ End testcase DateTest.java ------
###@###.### 2005-2-21 16:38:26 GMT