Fix #326

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -8,6 +8,7 @@ Project: jackson-dataformat-xml
 
 #242: Deserialization of class inheritance depends on attributes order
  (reported by Victor K)
+#326: Force namespace-repairing on `XMLOutputFactory` instances
 #354: Support mapping `xsi:nul` marked elements as `null`s (`JsonToken.VALUE_NULL`)
 
 2.10.0.pr2 (31-Aug-2019)

src/main/java/com/fasterxml/jackson/dataformat/xml/XmlFactory.java

@@ -164,7 +164,7 @@ public XmlFactoryBuilder rebuild() {
 
     protected void _initFactories(XMLInputFactory xmlIn, XMLOutputFactory xmlOut)
     {
-        // Better ensure namespaces get built properly, so:
+        // [dataformat-xml#326]: Better ensure namespaces get built properly, so:
         xmlOut.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE);
         // and for parser, force coalescing as well (much simpler to use)
         xmlIn.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);

src/main/java/com/fasterxml/jackson/dataformat/xml/XmlFactoryBuilder.java

@@ -107,9 +107,12 @@ public XMLOutputFactory xmlOutputFactory() {
     }
 
     protected static XMLOutputFactory defaultOutputFactory() {
-        return XMLOutputFactory.newInstance();
+        XMLOutputFactory xmlOut = XMLOutputFactory.newInstance();
+        // [dataformat-xml#326]: Better ensure namespaces get built properly:
+        xmlOut.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE);
+        return xmlOut;
     }
-    
+
     // // // Parser features
 
     public XmlFactoryBuilder enable(FromXmlParser.Feature f) {