diff --git a/dubbo/codec/encoder.py b/dubbo/codec/encoder.py
index 48de9a1..d76ba0b 100644
--- a/dubbo/codec/encoder.py
+++ b/dubbo/codec/encoder.py
@@ -46,7 +46,7 @@
         del self.__values[key]
 
     def __repr__(self):
-        return '<java object {0} at {1}>'.format(self.__path, hex(id(self)))
+        return '<java object {} at {} with {}>'.format(self.__path, hex(id(self)), self.__values)
 
     def __contains__(self, key):
         return key in self.__values
diff --git a/setup.py b/setup.py
index b4f5859..48fda4f 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 
 setup(
     name='python-dubbo',
-    version='0.0.3-beta15',
+    version='0.0.3-beta16',
     url='https://github.com/RitterHou/python-dubbo',
     author='hourui',
     author_email='hourui@qianmi.com',