FULL PRODUCT VERSION :


A DESCRIPTION OF THE PROBLEM :
Timestamp.valueOf change the date created, time actually changes the date. This is not true for all dates, just for some in particular. This happens Timezone "America / Buenos_Aires".

Example:
Timestamp result = Timestamp.valueOf("1991-10-20 00:00:00");
this change date to "1991-10-20 01:00:00" (change hours)

This error does not occur with such TimeZone "America / Los_Angeles".
Sorry for my English.


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.sql.Timestamp;
import java.util.*;
public class HelloWorld{

     public static void main(String []args){
        TimeZone.setDefault(TimeZone.getTimeZone("America/Buenos_Aires"));
        String date = "1991-10-20 00:00:00";
        System.out.println("date: " + date);
        Timestamp date_timestamp = Timestamp.valueOf(date);
        System.out.println("date_timestamp: " + date_timestamp);
     }
}
---------- END SOURCE ----------