CustomTzIDCheckDST.java may fail at future date

test/jdk/java/util/TimeZone/CustomTzIDCheckDST.java may fail at future date.
I created small testcase (CheckDST.java) from CustomTzIDCheckDST.java
$ cat CheckDST.java
import java.util.Calendar;
import java.util.Date;
import java.util.SimpleTimeZone;

public class CheckDST {
    private static String CUSTOM_TZ = "MEZ-1MESZ,M3.5.0,M10.5.0";
    public static void main(String args[]) throws Throwable {
        runTZTest();
    }

    /* TZ code will always be set to "MEZ-1MESZ,M3.5.0,M10.5.0".
     * This ensures the transition periods for Daylights Savings should be at March's last
     * Sunday and October's last Sunday.
     */
    private static void runTZTest() {
        Date time = new Date();
        if (new SimpleTimeZone(3600000, "MEZ-1MESZ", Calendar.MARCH, -1, Calendar.SUNDAY, 0,
                Calendar.OCTOBER, -1, Calendar.SUNDAY, 0).inDaylightTime(time)) {
            // We are in Daylight savings period.
            if (time.toString().endsWith("GMT+02:00 " + Integer.toString(time.getYear() + 1900)))
                return;
        } else {
            if (time.toString().endsWith("GMT+01:00 " + Integer.toString(time.getYear() + 1900)))
                return;
        }

        // Reaching here means time zone did not match up as expected.
        throw new RuntimeException("Got unexpected timezone information: " + time);
    }
}

I tested CheckDST with faketime, then I got following results
$ TZ=GMT faketime -m "2023-03-25 22:59:59" env TZ="MEZ-1MESZ,M3.5.0,M10.5.0" $HOME/jdk-21-b02/bin/java CheckDST
$ TZ=GMT faketime -m "2023-03-25 23:00:00" env TZ="MEZ-1MESZ,M3.5.0,M10.5.0" $HOME/jdk-21-b02/bin/java CheckDST
Exception in thread "main" java.lang.RuntimeException: Got unexpected timezone information: Sun Mar 26 00:00:00 GMT+01:00 2023
        at CheckDST.runTZTest(CheckDST.java:28)
        at CheckDST.main(CheckDST.java:8)