diff --git a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonBaseEngine.java b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonBaseEngine.java
index 0011a0ef8..8591526c7 100644
--- a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonBaseEngine.java
+++ b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonBaseEngine.java
@@ -23,7 +23,6 @@
 import com.fasterxml.jackson.module.afterburner.AfterburnerModule;
 import ro.pippo.core.Application;
 import ro.pippo.core.ContentTypeEngine;
-import ro.pippo.core.HttpConstants;
 import ro.pippo.core.PippoRuntimeException;
 
 import java.io.IOException;
@@ -36,17 +35,17 @@
  */
 public abstract class JacksonBaseEngine implements ContentTypeEngine {
 
-    protected ObjectMapper objectMapper;
+    private ObjectMapper objectMapper;
 
     @Override
     public void init(Application application) {
-        objectMapper = getObjectMapper();
+        objectMapper = createObjectMapper();
         objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
         objectMapper.setTimeZone(TimeZone.getDefault());
         objectMapper.registerModule(new AfterburnerModule());
     }
 
-    protected abstract ObjectMapper getObjectMapper();
+    protected abstract ObjectMapper createObjectMapper();
 
     @Override
     public String toString(Object object) {
diff --git a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonJsonEngine.java b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonJsonEngine.java
index ccc186bd1..46b026443 100644
--- a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonJsonEngine.java
+++ b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonJsonEngine.java
@@ -29,7 +29,7 @@
 public class JacksonJsonEngine extends JacksonBaseEngine {
 
     @Override
-    protected ObjectMapper getObjectMapper() {
+    protected ObjectMapper createObjectMapper() {
         return new ObjectMapper();
     }
 
diff --git a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonXmlEngine.java b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonXmlEngine.java
index c6dc7fe0a..2b25543c7 100644
--- a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonXmlEngine.java
+++ b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonXmlEngine.java
@@ -31,7 +31,7 @@
 public class JacksonXmlEngine extends JacksonBaseEngine {
 
     @Override
-    protected ObjectMapper getObjectMapper() {
+    protected ObjectMapper createObjectMapper() {
         // Check out: https://github.com/FasterXML/jackson-dataformat-xml
         JacksonXmlModule module = new JacksonXmlModule();
         // setDefaultUseWrapper produces more similar output to
diff --git a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonYamlEngine.java b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonYamlEngine.java
index aeb21bef6..4f30bd266 100644
--- a/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonYamlEngine.java
+++ b/pippo-content-type-parent/pippo-jackson/src/main/java/ro/pippo/jackson/JacksonYamlEngine.java
@@ -30,7 +30,7 @@
 public class JacksonYamlEngine extends JacksonBaseEngine {
 
     @Override
-    protected ObjectMapper getObjectMapper() {
+    protected ObjectMapper createObjectMapper() {
         return new YAMLMapper();
     }