Name: avC70361 Date: 09/28/98



  The java.util.TimeZone.getDisplayName(boolean, int, Locale) returns wrong result for SimpleTimeZone
instances with DSTSavings not equal to 1 hour. When a time zone's display name is not available for the localeand the first parameter is true(returns daylight savings name) it returns a result considering DST offset
always to be 1 hour whereas the right value can be different.

Here is a test demonstrating the bug.
--------------GetDisplayNameTest.java---------------
import java.util.Locale;
import java.util.SimpleTimeZone;
import java.util.TimeZone;

public class GetDisplayNameTest {
  public static void main(String args[]) {
    int offset = 3 * 60 * 60 * 1000 / 2; // 1.5 hour
    SimpleTimeZone stz = new SimpleTimeZone(offset, "My TZ");
    stz.setDSTSavings(60 * 60 * 1000 / 2); // DST offset 0.5 hour

    String name = stz.getDisplayName(true, TimeZone.SHORT, Locale.getDefault());
    String expected = "GMT+02:00"; // offset during DST 1.5 + 0.5 = 2 hour

    if (name.equals(expected)) {
      System.out.println("Passed");
    } else {
      System.out.println(
        "Failed. Name returned = " + name + ", expected name = " + expected
      );
    }
  }
}
-------------The test output----------
> java GetDisplayNameTest
Failed. Name returned = GMT+02:30, expected name = GMT+02:00


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