SWS-248 in 1.0 branch

Author: poutsma

core/src/main/java/org/springframework/ws/pox/dom/DomPoxMessage.java

@@ -26,13 +26,15 @@
 import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamResult;
 
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+
 import org.springframework.util.Assert;
 import org.springframework.ws.pox.PoxMessage;
 import org.springframework.ws.transport.TransportConstants;
 import org.springframework.ws.transport.TransportOutputStream;
 import org.springframework.xml.namespace.QNameUtils;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
 
 /**
  * Implementation of the <code>PoxMessage</code> interface that is based on a DOM Document.
@@ -69,6 +71,10 @@ public Document getDocument() {
     }
 
     public Result getPayloadResult() {
+        NodeList children = document.getChildNodes();
+        for (int i = 0; i < children.getLength(); i++) {
+            document.removeChild(children.item(i));
+        }
         return new DOMResult(document);
     }
 

core/src/test/java/org/springframework/ws/pox/dom/DomPoxMessageTest.java

@@ -23,9 +23,10 @@
 import javax.xml.transform.TransformerFactory;
 
 import org.custommonkey.xmlunit.XMLTestCase;
+import org.w3c.dom.Document;
+
 import org.springframework.xml.transform.StringResult;
 import org.springframework.xml.transform.StringSource;
-import org.w3c.dom.Document;
 
 public class DomPoxMessageTest extends XMLTestCase {
 
@@ -53,6 +54,15 @@ public void testGetPayload() throws Exception {
         assertXMLEqual(content, stringResult.toString());
     }
 
+    public void testGetPayloadResultTwice() throws Exception {
+        String content = "<element xmlns=\"http://www.springframework.org/spring-ws\" />";
+        transformer.transform(new StringSource(content), message.getPayloadResult());
+        transformer.transform(new StringSource(content), message.getPayloadResult());
+        StringResult stringResult = new StringResult();
+        transformer.transform(message.getPayloadSource(), stringResult);
+        assertXMLEqual(content, stringResult.toString());
+    }
+
     public void testWriteTo() throws Exception {
         String content = "<root xmlns='http://www.springframework.org/spring-ws'>" + "<child/></root>";
         StringSource source = new StringSource(content);