diff --git a/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/test/testutils/MockMvcUtils.java b/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/test/testutils/MockMvcUtils.java
index 40c746af0b4f41eb25f8c7d2b4bcc81ee9865fd4..5b2f49a594e761e9abf411cc8317d89051cacf37 100644
--- a/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/test/testutils/MockMvcUtils.java
+++ b/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/test/testutils/MockMvcUtils.java
@@ -5,6 +5,8 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.json.JsonMapper;
 import com.fasterxml.jackson.databind.type.CollectionType;
 import eu.europa.ec.edelivery.smp.data.ui.UserRO;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpHeaders;
 import org.springframework.mock.web.MockHttpSession;
 import org.springframework.mock.web.MockServletContext;
@@ -38,6 +40,7 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
  * @since 4.2
  */
 public class MockMvcUtils {
+    public static Logger LOG  = LoggerFactory.getLogger(MockMvcUtils.class);
     static ObjectMapper mapper = JsonMapper.builder()
             .findAndAddModules()
             .build();
@@ -52,6 +55,7 @@ public class MockMvcUtils {
     public static final String SG_USER2_USERNAME = "test_user_hashed_pass";
     public static final String SG_USER2_PASSWD = "test123";
 
+    public static final String MOCK_LOGGED_USER = "mock_logged_user";
 
     public static RequestPostProcessor getHttpBasicSystemAdminCredentials() {
         return httpBasic(SYS_ADMIN_USERNAME, SYS_ADMIN_PASSWD);
@@ -110,9 +114,14 @@ public class MockMvcUtils {
                         .content("{\"username\":\"" + username + "\",\"password\":\"" + password + "\"}"))
                 .andExpect(status().isOk()).andReturn();
         // assert successful login
-        UserRO userRO = mapper.readValue(result.getResponse().getContentAsString(), UserRO.class);
+        byte[] asByteArray = result.getResponse().getContentAsByteArray();
+        LOG.info("User logged with data: []", new String(asByteArray));
+
+        UserRO userRO = mapper.readValue(asByteArray, UserRO.class);
         assertNotNull(userRO);
-        return (MockHttpSession) result.getRequest().getSession();
+        MockHttpSession session = (MockHttpSession)result.getRequest().getSession();
+        session.setAttribute(MOCK_LOGGED_USER, userRO);
+        return session;
     }
 
     /**
@@ -129,6 +138,7 @@ public class MockMvcUtils {
                         .with(csrf()))
                 .andExpect(status().isOk()).andReturn();
         byte[] asByteArray = result.getResponse().getContentAsByteArray();
+        LOG.info("User session validated with logged data: []", new String(asByteArray));
         return mapper.readValue(asByteArray, UserRO.class);
     }
 
@@ -152,8 +162,8 @@ public class MockMvcUtils {
         return mapper.readValue(result.getResponse().getContentAsString(), collectionType);
     }
 
-    public static <T> T parseResponse(MvcResult result, Class<T> clazz) throws UnsupportedEncodingException, JsonProcessingException {
-        return mapper.readValue(result.getResponse().getContentAsString(), clazz);
+    public static <T> T parseResponse(MvcResult result, Class<T> clazz) throws IOException {
+        return mapper.readValue(result.getResponse().getContentAsByteArray(), clazz);
     }
 
     public static String serializeObject(Object object) throws JsonProcessingException {
diff --git a/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/ui/internal/DomainAdminResourceIntegrationTest.java b/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/ui/internal/DomainAdminResourceIntegrationTest.java
index 43c7fc0d2698e58a45c1c37cdf94d5f1c756024f..de19addd8d1fd8da49ed7d6c2c301567e86947b9 100644
--- a/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/ui/internal/DomainAdminResourceIntegrationTest.java
+++ b/smp-webapp/src/test/java/eu/europa/ec/edelivery/smp/ui/internal/DomainAdminResourceIntegrationTest.java
@@ -118,11 +118,13 @@ public class DomainAdminResourceIntegrationTest {
         assertEquals(domainToUpdate.getDomainCode(), resultObject.getDomainCode());
         assertEquals(EntityROStatus.UPDATED.getStatusNumber(), resultObject.getStatus());
     }
+
     @Test
     public void updateDomainSmlIntegrationData() throws Exception {
         String domainCode = "domainTwo";
         MockHttpSession session = loginWithSystemAdmin(mvc);
-        UserRO userRO = MockMvcUtils.getLoggedUserData(mvc, session);
+        UserRO userRO = (UserRO)session.getAttribute(MOCK_LOGGED_USER);
+
         DomainRO domainToUpdate = getDomain(domainCode, userRO, session);
         domainToUpdate.setSmlSubdomain("NewCode");
         domainToUpdate.setSmlClientKeyAlias("New alias");