diff --git a/hutool-core/src/test/java/cn/hutool/core/util/XmlUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/XmlUtilTest.java
index 0b0e46181..f14e98859 100644
--- a/hutool-core/src/test/java/cn/hutool/core/util/XmlUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/XmlUtilTest.java
@@ -332,4 +332,20 @@ public class XmlUtilTest {
 		final String name = doc.getDocumentElement().getAttribute("name");
 		Assert.assertEquals("aaaa", name);
 	}
+
+	@Test
+	@Ignore
+	public void issueI5DO8ETest(){
+		// 增加子节点后，格式会错乱，JDK的bug
+		XmlUtil.setNamespaceAware(false);
+		final String xmlStr = ResourceUtil.readUtf8Str("issueI5DO8E.xml");
+		final Document doc = XmlUtil.readXML(xmlStr);
+
+		final Element item = doc.createElement("item");
+		item.setAttribute("id", "cover-image");
+		final Element manifestEl = XmlUtil.getElementByXPath("//package/manifest", doc);
+		manifestEl.appendChild(item);
+
+		Console.log(XmlUtil.format(doc));
+	}
 }
diff --git a/hutool-core/src/test/resources/issueI5DO8E.xml b/hutool-core/src/test/resources/issueI5DO8E.xml
new file mode 100644
index 000000000..802554c25
--- /dev/null
+++ b/hutool-core/src/test/resources/issueI5DO8E.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<package xmlns="http://www.idpf.org/2007/opf"
+		 xmlns:dc="http://purl.org/dc/elements/1.1/"
+		 unique-identifier="bookId" version="2.0">
+	<manifest>
+		<item href="toc.ncx" id="ncx" media-type="application/x-dtbncx+xml"/>
+	</manifest>
+	<spine toc="ncx"></spine>
+</package>