From 64e11c9de8fd48009f9207bb5cfb51c9474bcc31 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Thu, 16 Jun 2022 12:30:21 +0800
Subject: [PATCH] fix bug

---
 CHANGELOG.md                                                   | 1 +
 hutool-core/src/main/java/cn/hutool/core/text/csv/CsvData.java | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19f547c88..779fdec9e 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 * 
 ### 🐞Bug修复
 * 【extra  】     修复createExtractor中抛出异常后流未关闭问题（pr#2384@Github）
+* 【core   】     修复CsvData.getHeader没有判空导致空指针问题（issue#I5CK7Q@Gitee）
 
 -------------------------------------------------------------------------------------------------------------
 
diff --git a/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvData.java b/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvData.java
index 1bf31a92e..bd852ad69 100755
--- a/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvData.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/csv/CsvData.java
@@ -42,6 +42,9 @@ public class CsvData implements Iterable<CsvRow>, Serializable {
 	 * @return the header row - might be {@code null} if no header exists
 	 */
 	public List<String> getHeader() {
+		if(null == this.header){
+			return null;
+		}
 		return Collections.unmodifiableList(this.header);
 	}