diff --git a/src/main/java/it/inaf/oats/vospace/VospaceApplication.java b/src/main/java/it/inaf/oats/vospace/VospaceApplication.java
index 3ce0214778342320644a9c73a032d64ad673a722..935377bb94d49931e784fdf5e89168255febe3dd 100644
--- a/src/main/java/it/inaf/oats/vospace/VospaceApplication.java
+++ b/src/main/java/it/inaf/oats/vospace/VospaceApplication.java
@@ -5,9 +5,6 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import it.inaf.ia2.aa.LoginFilter;
-import javax.xml.bind.JAXBContext;
-import javax.xml.bind.JAXBException;
-import javax.xml.bind.Marshaller;
 
 @SpringBootApplication
 public class VospaceApplication {
@@ -23,15 +20,4 @@ public class VospaceApplication {
         registration.addUrlPatterns("/private/*");
         return registration;
     }
-
-    @Bean
-    public Marshaller marshaller() {
-        try {
-            JAXBContext context = JAXBContext.newInstance();
-            Marshaller marshaller = context.createMarshaller();
-            return marshaller;
-        } catch (JAXBException e) {
-            throw new RuntimeException(e);
-        }
-    }
 }
diff --git a/src/test/java/it/inaf/oats/vospace/ListNodeControllerTest.java b/src/test/java/it/inaf/oats/vospace/ListNodeControllerTest.java
index 3e486d09df64474d5ff3545186524a7f065f3459..f1aa0ba31a9989a0b7d7be670868d0156420902d 100644
--- a/src/test/java/it/inaf/oats/vospace/ListNodeControllerTest.java
+++ b/src/test/java/it/inaf/oats/vospace/ListNodeControllerTest.java
@@ -1,9 +1,11 @@
 package it.inaf.oats.vospace;
 
+import static it.inaf.oats.vospace.VOSpaceXmlTestUtil.loadDocument;
 import it.inaf.oats.vospace.persistence.NodeDAO;
 import net.ivoa.xml.vospace.v2.ContainerNode;
 import net.ivoa.xml.vospace.v2.DataNode;
 import net.ivoa.xml.vospace.v2.Node;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import org.junit.jupiter.api.Test;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.times;
@@ -18,6 +20,7 @@ import org.springframework.test.web.servlet.MockMvc;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import org.w3c.dom.Document;
 
 @SpringBootTest
 @AutoConfigureMockMvc
@@ -42,7 +45,9 @@ public class ListNodeControllerTest {
                 .andExpect(status().isOk())
                 .andReturn().getResponse().getContentAsString();
 
-        System.out.println(xml);
+        Document doc = loadDocument(xml);
+        assertEquals("vos:node", doc.getDocumentElement().getNodeName());
+        assertEquals("vos:ContainerNode", doc.getDocumentElement().getAttribute("xsi:type"));
 
         verify(dao, times(1)).listNode(eq("/"));
     }
@@ -52,10 +57,15 @@ public class ListNodeControllerTest {
 
         when(dao.listNode(eq("/mynode"))).thenReturn(getDataNode());
 
-        mockMvc.perform(get("/nodes/mynode")
+        String xml = mockMvc.perform(get("/nodes/mynode")
                 .accept(MediaType.APPLICATION_XML))
                 .andDo(print())
-                .andExpect(status().isOk());
+                .andExpect(status().isOk())
+                .andReturn().getResponse().getContentAsString();
+
+        Document doc = loadDocument(xml);
+        assertEquals("vos:node", doc.getDocumentElement().getNodeName());
+        assertEquals("vos:DataNode", doc.getDocumentElement().getAttribute("xsi:type"));
 
         verify(dao, times(1)).listNode(eq("/mynode"));
     }
diff --git a/src/test/java/it/inaf/oats/vospace/VOSpaceXmlTestUtil.java b/src/test/java/it/inaf/oats/vospace/VOSpaceXmlTestUtil.java
new file mode 100644
index 0000000000000000000000000000000000000000..cc2a122d53445c833dc4677dd10ffe34049656cb
--- /dev/null
+++ b/src/test/java/it/inaf/oats/vospace/VOSpaceXmlTestUtil.java
@@ -0,0 +1,23 @@
+package it.inaf.oats.vospace;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import org.w3c.dom.Document;
+
+public class VOSpaceXmlTestUtil {
+
+    public static Document loadDocument(String xml) throws Exception {
+
+        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        factory.setValidating(false);
+        factory.setNamespaceAware(true);
+
+        DocumentBuilder builder = factory.newDocumentBuilder();
+
+        try ( InputStream in = new ByteArrayInputStream(xml.getBytes())) {
+            return builder.parse(in);
+        }
+    }
+}