From a0ac4362ddf3a8ef537afcae63552cbc39fda422 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Wed, 29 Mar 2023 21:57:20 +0800
Subject: [PATCH] fix code

---
 .../src/main/java/cn/hutool/core/collection/CollUtil.java | 5 +++--
 .../test/java/cn/hutool/core/collection/CollUtilTest.java | 8 ++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
index 8a0b0e4df..1eb2701d2 100755
--- a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
@@ -844,11 +844,12 @@ public class CollUtil {
 			return result;
 		}
 
-		ArrayList<T> subList = new ArrayList<>(size);
+		final int initSize = Math.min(collection.size(), size);
+		ArrayList<T> subList = new ArrayList<>(initSize);
 		for (final T t : collection) {
 			if (subList.size() >= size) {
 				result.add(subList);
-				subList = new ArrayList<>(size);
+				subList = new ArrayList<>(initSize);
 			}
 			subList.add(t);
 		}
diff --git a/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
index f87b0586e..6242a5230 100755
--- a/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
@@ -304,6 +304,14 @@ public class CollUtilTest {
 		Assert.assertEquals(3, split.get(0).size());
 	}
 
+	@Test
+	public void splitTest2() {
+		final ArrayList<Integer> list = ListUtil.of(1, 2, 3, 4, 5, 6, 7, 8, 9);
+		final List<List<Integer>> split = CollUtil.split(list, Integer.MAX_VALUE);
+		Assert.assertEquals(1, split.size());
+		Assert.assertEquals(9, split.get(0).size());
+	}
+
 	@Test
 	public void foreachTest() {
 		final HashMap<String, String> map = MapUtil.newHashMap();