From 0198427bd33cfcd2c3b28b6f62520487ded90d50 Mon Sep 17 00:00:00 2001
From: wqh <1241409260@qq.com>
Date: Wed, 20 Aug 2025 10:07:34 +0800
Subject: [PATCH] Fix 4006

---
 .../pattern/matcher/BoolArrayMatcher.java     | 16 ++++++++++++++-
 .../pattern/matcher/DayOfMonthMatcher.java    | 11 ++++++++++
 .../cron/pattern/matcher/PatternMatcher.java  |  6 +++---
 .../cn/hutool/cron/pattern/Issue4006Test.java | 20 +++++++++++++++++++
 4 files changed, 49 insertions(+), 4 deletions(-)
 create mode 100644 hutool-cron/src/test/java/cn/hutool/cron/pattern/Issue4006Test.java

diff --git a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/BoolArrayMatcher.java b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/BoolArrayMatcher.java
index d60909ec5..ad0961951 100644
--- a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/BoolArrayMatcher.java
+++ b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/BoolArrayMatcher.java
@@ -18,6 +18,10 @@ public class BoolArrayMatcher implements PartMatcher {
 	 * 用户定义此字段的最小值
 	 */
 	private final int minValue;
+	/**
+	 * 用户定义此字段的最大值
+	 */
+	private final int maxValue;
 	private final boolean[] bValues;
 
 	/**
@@ -29,13 +33,15 @@ public class BoolArrayMatcher implements PartMatcher {
 		Assert.isTrue(CollUtil.isNotEmpty(intValueList), "Values must be not empty!");
 		bValues = new boolean[Collections.max(intValueList) + 1];
 		int min = Integer.MAX_VALUE;
+		int max = Integer.MIN_VALUE;
 		for (Integer value : intValueList) {
 			min = Math.min(min, value);
+			max = Math.max(max, value);
 			bValues[value] = true;
 		}
 		this.minValue = min;
+		this.maxValue = max;
 	}
-
 	@Override
 	public boolean match(Integer value) {
 		if (null == value || value >= bValues.length) {
@@ -69,6 +75,14 @@ public class BoolArrayMatcher implements PartMatcher {
 	public int getMinValue() {
 		return this.minValue;
 	}
+	/**
+	 * 获取表达式定义的最大值
+	 *
+	 * @return 最大值
+	 */
+	public int getMaxValue() {
+		return this.maxValue;
+	}
 
 	@Override
 	public String toString() {
diff --git a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/DayOfMonthMatcher.java b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/DayOfMonthMatcher.java
index 0ce10436c..634aa1db7 100644
--- a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/DayOfMonthMatcher.java
+++ b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/DayOfMonthMatcher.java
@@ -50,8 +50,19 @@ public class DayOfMonthMatcher extends BoolArrayMatcher {
 		return value == Month.getLastDay(month - 1, isLeapYear);
 	}
 
+	@Deprecated
 	public boolean isLast() {
 		return match(31);
 	}
 
+	/**
+	 * 检查value是否大于等于这个月的最大天
+	 * @param value 被检查的值
+	 * @return
+	 */
+	public boolean isLastDay(int value) {
+		if(value>=getMaxValue()) return  true;
+		return  false;
+	}
+
 }
diff --git a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/PatternMatcher.java b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/PatternMatcher.java
index 65dfe6bec..f91dae00b 100755
--- a/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/PatternMatcher.java
+++ b/hutool-cron/src/main/java/cn/hutool/cron/pattern/matcher/PatternMatcher.java
@@ -192,7 +192,7 @@ public class PatternMatcher {
 			// pr#1189
 			if (i == Part.DAY_OF_MONTH.ordinal()
 				&& matchers[i] instanceof DayOfMonthMatcher
-				&& ((DayOfMonthMatcher) matchers[i]).isLast()) {
+				&& ((DayOfMonthMatcher) matchers[i]).isLastDay(values[i])) {
 				int newMonth = newValues[Part.MONTH.ordinal()];
 				int newYear = newValues[Part.YEAR.ordinal()];
 				nextValue = getLastDay(newMonth, newYear);
@@ -226,7 +226,7 @@ public class PatternMatcher {
 					continue;
 				} else if (i == Part.DAY_OF_MONTH.ordinal()
 					&& matchers[i] instanceof DayOfMonthMatcher
-					&& ((DayOfMonthMatcher) matchers[i]).isLast()) {
+					&& ((DayOfMonthMatcher) matchers[i]).isLastDay(values[i])) {
 					int newMonth = newValues[Part.MONTH.ordinal()];
 					int newYear = newValues[Part.YEAR.ordinal()];
 					nextValue = getLastDay(newMonth, newYear);
@@ -259,7 +259,7 @@ public class PatternMatcher {
 			part = Part.of(i);
 			if (part == Part.DAY_OF_MONTH
 				&& get(part) instanceof DayOfMonthMatcher
-				&& ((DayOfMonthMatcher) get(part)).isLast()) {
+				&& ((DayOfMonthMatcher) get(part)).isLastDay(values[i])) {
 				int newMonth = values[Part.MONTH.ordinal()];
 				int newYear = values[Part.YEAR.ordinal()];
 				values[i] = getLastDay(newMonth, newYear);
diff --git a/hutool-cron/src/test/java/cn/hutool/cron/pattern/Issue4006Test.java b/hutool-cron/src/test/java/cn/hutool/cron/pattern/Issue4006Test.java
new file mode 100644
index 000000000..cea735ebc
--- /dev/null
+++ b/hutool-cron/src/test/java/cn/hutool/cron/pattern/Issue4006Test.java
@@ -0,0 +1,20 @@
+package cn.hutool.cron.pattern;
+
+import cn.hutool.core.date.DateTime;
+import org.junit.jupiter.api.Test;
+
+import java.util.Date;
+
+public class Issue4006Test {
+	@Test
+	void testCron() {
+//        String cron = "0 0 0 */1 * ?";
+		String cron = "0 0 0 */1 * ? *";
+		DateTime judgeTime = DateTime.of(new Date());
+		CronPattern cronPattern = new CronPattern(cron);
+
+		System.out.println("cronPattern = " + cronPattern);
+		Date nextDate = CronPatternUtil.nextDateAfter(cronPattern, judgeTime, true);
+		System.out.println("nextDate = " + nextDate);
+	}
+}