From 47091df4f76cb866b3661e11779738041cb2a457 Mon Sep 17 00:00:00 2001
From: Brahim AMAIRI <brahim.amairi@gmail.com>
Date: Tue, 29 Oct 2019 12:05:27 +0100
Subject: [PATCH] fix(void element is a simple element)

example of void element :
<any:element xmlns:any="http://foo.bar.net/-/any/"/>

Co-authored-by: Brahim Amairi <brahim.amairi@gmail.com>
Co-authored-by: Farid Chetouani <farid.chetouani@vidal.fr>
---
 .../atom/core/ExtensionElementAdapter.java     |  5 +++--
 .../atom/core/ExtensionElementAdapterTest.java | 18 ++++++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/main/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapter.java b/src/main/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapter.java
index 53d2e1a..0040f1b 100644
--- a/src/main/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapter.java
+++ b/src/main/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapter.java
@@ -109,8 +109,9 @@ private ExtensionElement extensionElement(Node node) {
     }
 
     private boolean isSimpleElementNode(Node node) {
-        return node.getChildNodes().getLength() == 1
-            && isTextualNode(node.getFirstChild());
+        return (node.getChildNodes().getLength() == 1
+            && isTextualNode(node.getFirstChild()))
+              || node.getChildNodes().getLength() == 0;
     }
 
     private boolean isTextualNode(Node node) {
diff --git a/src/test/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapterTest.java b/src/test/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapterTest.java
index f62b6a7..0406e63 100644
--- a/src/test/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapterTest.java
+++ b/src/test/java/fr/vidal/oss/jaxb/atom/core/ExtensionElementAdapterTest.java
@@ -87,6 +87,24 @@ public void unmarshal_single_simple_element() throws Exception {
             .build());
     }
 
+    @Test
+    public void unmarshal_single_simple_void_element() throws Exception {
+        String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+              "<root xmlns=\"http://www.w3.org/2005/Atom\">\n" +
+              "    <any:element xmlns:any=\"http://foo.bar.net/-/any/\"/>\n" +
+              "</root>";
+
+        ExtensionElement result = unmarshalElement(xml);
+
+        assertThat(result).isEqualTo(ExtensionElements.simpleElement("element", "")
+              .withNamespace(ANY_NAMESPACE)
+              .addAttribute(XMLNS_ATTRIBUTE)
+              .addAttribute(Attribute.builder("any", "http://foo.bar.net/-/any/")
+                    .withNamespace(XMLNS_NAMESPACE)
+                    .build())
+              .build());
+    }
+
     @Test
     public void unmarshal_structured_element_with_single_child() throws Exception {
         String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +