Consider current date in "1W" cron expressions

Prior to this commit, the QuartzCronField::weekdayNearestTo would elapse
until the next month before checking if the current day matched.

After this commit, the current day is checked before we elapse until
the next month.

Closes gh-27966

spring-context/src/main/java/org/springframework/scheduling/support/QuartzCronField.java

@@ -251,43 +251,46 @@ final class QuartzCronField extends CronField {
 	private static TemporalAdjuster weekdayNearestTo(int dayOfMonth) {
 		return temporal -> {
 			int current = Type.DAY_OF_MONTH.get(temporal);
-			int dayOfWeek = temporal.get(ChronoField.DAY_OF_WEEK);
+			DayOfWeek dayOfWeek = DayOfWeek.from(temporal);
 
-			if ((current == dayOfMonth && dayOfWeek < 6) || // dayOfMonth is a weekday
-					(dayOfWeek == 5 && current == dayOfMonth - 1) || // dayOfMonth is a Saturday, so Friday before
-					(dayOfWeek == 1 && current == dayOfMonth + 1) || // dayOfMonth is a Sunday, so Monday after
-					(dayOfWeek == 1 && dayOfMonth == 1 && current == 3)) { // dayOfMonth is the 1st, so Monday 3rd
+			if ((current == dayOfMonth && isWeekday(dayOfWeek)) || // dayOfMonth is a weekday
+					(dayOfWeek == DayOfWeek.FRIDAY && current == dayOfMonth - 1) || // dayOfMonth is a Saturday, so Friday before
+					(dayOfWeek == DayOfWeek.MONDAY && current == dayOfMonth + 1) || // dayOfMonth is a Sunday, so Monday after
+					(dayOfWeek == DayOfWeek.MONDAY && dayOfMonth == 1 && current == 3)) { // dayOfMonth is Saturday 1st, so Monday 3rd
 				return temporal;
 			}
 			int count = 0;
 			while (count++ < CronExpression.MAX_ATTEMPTS) {
-				temporal = Type.DAY_OF_MONTH.elapseUntil(cast(temporal), dayOfMonth);
-				temporal = atMidnight().adjustInto(temporal);
-				current = Type.DAY_OF_MONTH.get(temporal);
 				if (current == dayOfMonth) {
-					dayOfWeek = temporal.get(ChronoField.DAY_OF_WEEK);
+					dayOfWeek = DayOfWeek.from(temporal);
 
-					if (dayOfWeek == 6) { // Saturday
+					if (dayOfWeek == DayOfWeek.SATURDAY) {
 						if (dayOfMonth != 1) {
-							return temporal.minus(1, ChronoUnit.DAYS);
+							temporal = temporal.minus(1, ChronoUnit.DAYS);
 						}
 						else {
-							// exception for "1W" fields: execute on nearest Monday
-							return temporal.plus(2, ChronoUnit.DAYS);
+							// exception for "1W" fields: execute on next Monday
+							temporal = temporal.plus(2, ChronoUnit.DAYS);
 						}
 					}
-					else if (dayOfWeek == 7) { // Sunday
-						return temporal.plus(1, ChronoUnit.DAYS);
-					}
-					else {
-						return temporal;
+					else if (dayOfWeek == DayOfWeek.SUNDAY) {
+						temporal = temporal.plus(1, ChronoUnit.DAYS);
 					}
+					return atMidnight().adjustInto(temporal);
+				}
+				else {
+					temporal = Type.DAY_OF_MONTH.elapseUntil(cast(temporal), dayOfMonth);
+					current = Type.DAY_OF_MONTH.get(temporal);
 				}
 			}
 			return null;
 		};
 	}
 
+	private static boolean isWeekday(DayOfWeek dayOfWeek) {
+		return dayOfWeek != DayOfWeek.SATURDAY && dayOfWeek != DayOfWeek.SUNDAY;
+	}
+
 	/**
 	 * Return a temporal adjuster that finds the last of the given doy-of-week
 	 * in a month.

spring-context/src/test/java/org/springframework/scheduling/support/CronExpressionTests.java

@@ -16,13 +16,13 @@
 
 package org.springframework.scheduling.support;
 
+import java.time.DayOfWeek;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.Year;
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
-import java.time.temporal.ChronoField;
 import java.time.temporal.Temporal;
 
 import org.assertj.core.api.Condition;
@@ -30,6 +30,7 @@ import org.junit.jupiter.api.Test;
 
 import static java.time.DayOfWeek.FRIDAY;
 import static java.time.DayOfWeek.MONDAY;
+import static java.time.DayOfWeek.SATURDAY;
 import static java.time.DayOfWeek.SUNDAY;
 import static java.time.DayOfWeek.THURSDAY;
 import static java.time.DayOfWeek.TUESDAY;
@@ -46,8 +47,8 @@ class CronExpressionTests {
 
 		@Override
 		public boolean matches(Temporal value) {
-			int dayOfWeek = value.get(ChronoField.DAY_OF_WEEK);
-			return dayOfWeek != 6 && dayOfWeek != 7;
+			DayOfWeek dayOfWeek = DayOfWeek.from(value);
+			return dayOfWeek != SATURDAY && dayOfWeek != SUNDAY;
 		}
 	};
 
@@ -958,6 +959,24 @@ class CronExpressionTests {
 		assertThat(actual).isNotNull();
 		assertThat(actual).isEqualTo(expected);
 		assertThat(actual).is(weekday);
+
+		last = LocalDateTime.of(2022, 1, 1, 0, 0);
+		assertThat(last.getDayOfWeek()).isEqualTo(SATURDAY);
+		expected = LocalDateTime.of(2022, 1, 3, 0, 0);
+		assertThat(expected.getDayOfWeek()).isEqualTo(MONDAY);
+		actual = expression.next(last);
+		assertThat(actual).isNotNull();
+		assertThat(actual).isEqualTo(expected);
+		assertThat(actual).is(weekday);
+
+		last = LocalDateTime.of(2021, 8, 1, 0,0);
+		assertThat(last.getDayOfWeek()).isEqualTo(SUNDAY);
+		expected = LocalDateTime.of(2021, 8, 2, 0, 0);
+		assertThat(expected.getDayOfWeek()).isEqualTo(MONDAY);
+		actual = expression.next(last);
+		assertThat(actual).isNotNull();
+		assertThat(actual).isEqualTo(expected);
+		assertThat(actual).is(weekday);
 	}
 
 	@Test