diff --git a/src/main/java/com/github/dekaulitz/mockyup/models/BaseModel.java b/src/main/java/com/github/dekaulitz/mockyup/models/BaseModel.java
index 0a914cc..ca370ab 100644
--- a/src/main/java/com/github/dekaulitz/mockyup/models/BaseModel.java
+++ b/src/main/java/com/github/dekaulitz/mockyup/models/BaseModel.java
@@ -20,6 +20,7 @@
 
 import javax.servlet.http.HttpServletRequest;
 import java.io.UnsupportedEncodingException;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -68,7 +69,7 @@ public MockExample getMockResponse(PathItem pathItem, HttpServletRequest request
                     if (mock != null) return mock;
                     break;
                 case MockExample.X_DEFAULT:
-                    mock = MockExample.generateResponseDefault(extension.getValue());
+                    mock = MockExample.generateResponseDefault((LinkedHashMap<String,Object>)extension.getValue());
                     if (mock != null) return mock;
                     break;
                 default:
diff --git a/src/main/java/com/github/dekaulitz/mockyup/models/helper/MockExample.java b/src/main/java/com/github/dekaulitz/mockyup/models/helper/MockExample.java
index 5f3e52d..9bb497e 100644
--- a/src/main/java/com/github/dekaulitz/mockyup/models/helper/MockExample.java
+++ b/src/main/java/com/github/dekaulitz/mockyup/models/helper/MockExample.java
@@ -2,19 +2,20 @@
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import com.github.dekaulitz.mockyup.errorhandlers.InvalidMockException;
 import com.github.dekaulitz.mockyup.models.MockResponseModel;
+import com.github.dekaulitz.mockyup.utils.JsonMapper;
 import io.swagger.util.Json;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
+import lombok.*;
 import org.springframework.http.HttpMethod;
 
 import javax.servlet.http.HttpServletRequest;
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -46,7 +47,9 @@ public class MockExample {
      */
     public static MockExample generateResponseHeader(HttpServletRequest request, List<Map<String, Object>> extension) throws InvalidMockException {
         for (Map<String, Object> stringObjectMap : extension) {
-            MockExample mockExample = Json.mapper().convertValue(stringObjectMap, MockExample.class);
+            MockExample mockExample= new MockExample();
+            mockExample.setProperty(JsonMapper.mapper().convertValue(stringObjectMap.get("property"), Map.class));
+            mockExample.setResponse(JsonMapper.mapper().convertValue(stringObjectMap.get("response"), MockResponseModel.class));
             throwInvalidMockExample(mockExample, X_HEADERS);
             String requestHeader = request.getHeader((String) mockExample.getProperty().get(MockExample.NAME_PROPERTY));
             if (requestHeader != null) {
@@ -75,7 +78,9 @@ public static MockExample generateResponseBody(HttpServletRequest request, List<
                 || request.getMethod().equals(HttpMethod.PUT.toString()))
             for (Map<String, Object> stringObjectMap : extension) {
                 JsonNode requestBody = Json.mapper().readTree(body);
-                MockExample mockExample = Json.mapper().convertValue(stringObjectMap, MockExample.class);
+                MockExample mockExample= new MockExample();
+                mockExample.setProperty(JsonMapper.mapper().convertValue(stringObjectMap.get("property"), Map.class));
+                mockExample.setResponse(JsonMapper.mapper().convertValue(stringObjectMap.get("response"), MockResponseModel.class));
                 throwInvalidMockExample(mockExample, X_BODY);
                 String bodyRequest = requestBody.findPath((String) mockExample.getProperty().get(MockExample.NAME_PROPERTY)).asText();
                 if (!bodyRequest.isEmpty()) {
@@ -101,7 +106,10 @@ public static MockExample generateResponseBody(HttpServletRequest request, List<
      */
     public static MockExample generateResponnsePath(HttpServletRequest request, List<Map<String, Object>> extension, String[] openAPIPaths, String[] paths) throws InvalidMockException {
         for (Map<String, Object> stringObjectMap : extension) {
-            MockExample mockExample = Json.mapper().convertValue(stringObjectMap, MockExample.class);
+            MockExample mockExample= new MockExample();
+            mockExample.setProperty(JsonMapper.mapper().convertValue(stringObjectMap.get("property"), Map.class));
+            mockExample.setResponse(JsonMapper.mapper().convertValue(stringObjectMap.get("response"), MockResponseModel.class));
+
             throwInvalidMockExample(mockExample, X_PATH);
             for (int i = 0; i < openAPIPaths.length; i++) {
                 if (!openAPIPaths[i].equals(paths[i])) {
@@ -124,7 +132,9 @@ public static MockExample generateResponnsePath(HttpServletRequest request, List
      */
     public static MockExample generateResponnseQuery(HttpServletRequest request, List<Map<String, Object>> extension) throws InvalidMockException, UnsupportedEncodingException {
         for (Map<String, Object> stringObjectMap : extension) {
-            MockExample mockExample = Json.mapper().convertValue(stringObjectMap, MockExample.class);
+            MockExample mockExample= new MockExample();
+            mockExample.setProperty(JsonMapper.mapper().convertValue(stringObjectMap.get("property"), Map.class));
+            mockExample.setResponse(JsonMapper.mapper().convertValue(stringObjectMap.get("response"), MockResponseModel.class));
             throwInvalidMockExample(mockExample, X_QUERY);
             String cleanQueryString = java.net.URLDecoder.decode(request.getQueryString(), String.valueOf(StandardCharsets.UTF_8));
             String[] queryStrings = cleanQueryString.split("\\?");
@@ -159,8 +169,10 @@ public static MockExample generateResponnseQuery(HttpServletRequest request, Lis
      * @return
      * @desc generate default response
      */
-    public static MockExample generateResponseDefault(Object value) throws InvalidMockException {
-        MockExample mockExample = Json.mapper().convertValue(value, MockExample.class);
+    public static MockExample generateResponseDefault(LinkedHashMap<String,Object> value) throws InvalidMockException {
+        MockExample mockExample= new MockExample();
+        mockExample.setProperty(JsonMapper.mapper().convertValue(value.get("property"), Map.class));
+        mockExample.setResponse(JsonMapper.mapper().convertValue(value.get("response"), MockResponseModel.class));
         throwInvalidMockExample(mockExample, X_DEFAULT);
         return mockExample;
     }
diff --git a/src/main/java/com/github/dekaulitz/mockyup/utils/JsonMapper.java b/src/main/java/com/github/dekaulitz/mockyup/utils/JsonMapper.java
index 8b6aca1..f437629 100644
--- a/src/main/java/com/github/dekaulitz/mockyup/utils/JsonMapper.java
+++ b/src/main/java/com/github/dekaulitz/mockyup/utils/JsonMapper.java
@@ -1,8 +1,15 @@
 package com.github.dekaulitz.mockyup.utils;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.core.JsonFactoryBuilder;
+import com.fasterxml.jackson.core.StreamReadFeature;
 import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.ObjectWriter;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
 import io.swagger.v3.parser.ObjectMapperFactory;
 
 public class JsonMapper {
@@ -12,6 +19,7 @@ public static com.fasterxml.jackson.databind.ObjectMapper mapper() {
         if (mapper == null) {
             mapper = ObjectMapperFactory.createJson();
         }
+        mapper.setSerializationInclusion(JsonInclude.Include.ALWAYS);
         return mapper;
     }
 
@@ -19,4 +27,4 @@ public static ObjectWriter pretty() {
         return mapper().writer(new DefaultPrettyPrinter());
     }
 
-}
+}
\ No newline at end of file