From 794a67bd1ab01e35097eef72f32a823175673470 Mon Sep 17 00:00:00 2001
From: Looly <loolly@aliyun.com>
Date: Wed, 31 May 2023 18:59:14 +0800
Subject: [PATCH] fix code

---
 .../dromara/hutool/core/tree/TreeUtil.java    |  7 ++-
 .../hutool/core/tree/IssueI795INTest.java     | 47 +++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100755 hutool-core/src/test/java/org/dromara/hutool/core/tree/IssueI795INTest.java

diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/tree/TreeUtil.java b/hutool-core/src/main/java/org/dromara/hutool/core/tree/TreeUtil.java
index d6501fcee..665892b6c 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/tree/TreeUtil.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/tree/TreeUtil.java
@@ -231,9 +231,14 @@ public class TreeUtil {
 		}
 
 		MapTree<T> parent = node.getParent();
+		CharSequence name;
 		while (null != parent) {
-			result.add(parent.getName());
+			name = parent.getName();
 			parent = parent.getParent();
+			if(null != name || null != parent){
+				// issue#I795IN，根节点的null不加入
+				result.add(name);
+			}
 		}
 		return result;
 	}
diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/tree/IssueI795INTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/tree/IssueI795INTest.java
new file mode 100755
index 000000000..760064517
--- /dev/null
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/tree/IssueI795INTest.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.core.tree;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class IssueI795INTest {
+
+	static List<TreeNode<Long>> all_menu=new ArrayList<>();
+	static {
+		/*
+		 * root
+		 *    /module-A
+		 *    	   /module-A-menu-1
+		 *    /module-B
+		 *    	   /module-B-menu-1
+		 *    	   /module-B-menu-2
+		 */
+		all_menu.add(new TreeNode<>(1L, 0L, "root", 0L));
+		all_menu.add(new TreeNode<>(2L,1L,"module-A",0L));
+		all_menu.add(new TreeNode<>(3L,1L,"module-B",0L));
+		all_menu.add(new TreeNode<>(4L,2L,"module-A-menu-1",0L));
+		all_menu.add(new TreeNode<>(5L,3L,"module-B-menu-1",0L));
+		all_menu.add(new TreeNode<>(6L,3L,"module-B-menu-2",0L));
+	}
+
+	@Test
+	void getParentsNameTest() {
+		final MapTree<Long> tree = TreeUtil.buildSingle(all_menu, 0L);
+		final MapTree<Long> chid = tree.getChildren().get(0).getChildren().get(0).getChildren().get(0);
+		Assertions.assertEquals("[module-A-menu-1, module-A, root]", chid.getParentsName(true).toString());
+	}
+}