diff --git a/doric-android/doric/src/main/java/pub/doric/DoricContext.java b/doric-android/doric/src/main/java/pub/doric/DoricContext.java
index 9c71c87c..8a76649e 100644
--- a/doric-android/doric/src/main/java/pub/doric/DoricContext.java
+++ b/doric-android/doric/src/main/java/pub/doric/DoricContext.java
@@ -40,6 +40,7 @@ import java.util.WeakHashMap;
 import java.util.concurrent.Callable;
 
 import pub.doric.async.AsyncResult;
+import pub.doric.engine.RetainedJavaValue;
 import pub.doric.navbar.IDoricNavBar;
 import pub.doric.navigator.IDoricNavigator;
 import pub.doric.performance.DoricPerformanceProfile;
diff --git a/doric-android/doric/src/main/java/pub/doric/RetainedJavaValue.java b/doric-android/doric/src/main/java/pub/doric/engine/RetainedJavaValue.java
similarity index 93%
rename from doric-android/doric/src/main/java/pub/doric/RetainedJavaValue.java
rename to doric-android/doric/src/main/java/pub/doric/engine/RetainedJavaValue.java
index d3436d06..74735e29 100644
--- a/doric-android/doric/src/main/java/pub/doric/RetainedJavaValue.java
+++ b/doric-android/doric/src/main/java/pub/doric/engine/RetainedJavaValue.java
@@ -1,10 +1,12 @@
-package pub.doric;
+package pub.doric.engine;
 
 import com.github.pengfeizhou.jscore.JavaValue;
 
 import java.lang.ref.SoftReference;
 import java.lang.ref.WeakReference;
 
+import pub.doric.DoricContext;
+
 public class RetainedJavaValue extends JavaValue {
     private final WeakReference<DoricContext> contextRef;
 
diff --git a/doric-android/doric/src/main/java/pub/doric/plugin/ImageDecoderPlugin.java b/doric-android/doric/src/main/java/pub/doric/plugin/ImageDecoderPlugin.java
index ee970158..7d9e6861 100644
--- a/doric-android/doric/src/main/java/pub/doric/plugin/ImageDecoderPlugin.java
+++ b/doric-android/doric/src/main/java/pub/doric/plugin/ImageDecoderPlugin.java
@@ -25,7 +25,7 @@ import com.github.pengfeizhou.jscore.JavaValue;
 import java.nio.ByteBuffer;
 
 import pub.doric.DoricContext;
-import pub.doric.RetainedJavaValue;
+import pub.doric.engine.RetainedJavaValue;
 import pub.doric.async.AsyncResult;
 import pub.doric.extension.bridge.DoricMethod;
 import pub.doric.extension.bridge.DoricPlugin;