diff --git a/okhttp/src/main/java/org/baeldung/okhttp/ProgressRequestWrapper.java b/okhttp/src/main/java/org/baeldung/okhttp/ProgressRequestWrapper.java
index 42df4ac1ee..6a98f8d20a 100644
--- a/okhttp/src/main/java/org/baeldung/okhttp/ProgressRequestWrapper.java
+++ b/okhttp/src/main/java/org/baeldung/okhttp/ProgressRequestWrapper.java
@@ -1,16 +1,11 @@
 package org.baeldung.okhttp;
 
-import okhttp3.RequestBody;
 import okhttp3.MediaType;
+import okhttp3.RequestBody;
+import okio.*;
 
 import java.io.IOException;
 
-import okio.Buffer;
-import okio.BufferedSink;
-import okio.ForwardingSink;
-import okio.Okio;
-import okio.Sink;
-
 public class ProgressRequestWrapper extends RequestBody {
 
     protected RequestBody delegate;
@@ -65,9 +60,8 @@ public class ProgressRequestWrapper extends RequestBody {
 
     }
 
-    public static interface ProgressListener {
-
-        public void onRequestProgress(long bytesWritten, long contentLength);
+    public interface ProgressListener {
+        void onRequestProgress(long bytesWritten, long contentLength);
 
     }
 }
diff --git a/pom.xml b/pom.xml
index 07d1d2bf65..6a83fe026e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,6 +69,7 @@
         <module>rest-assured</module>
         <module>rest-testing</module>
         <module>resteasy</module>
+        <module>okhttp</module>
 
         <module>spring-all</module>
         <module>spring-akka</module>