=== modified file 'dhis-2/dhis-web/dhis-web-api-mobile/src/main/java/org/hisp/dhis/api/mobile/support/DataStreamSerializableMessageConverter.java'
--- dhis-2/dhis-web/dhis-web-api-mobile/src/main/java/org/hisp/dhis/api/mobile/support/DataStreamSerializableMessageConverter.java	2011-11-29 12:06:35 +0000
+++ dhis-2/dhis-web/dhis-web-api-mobile/src/main/java/org/hisp/dhis/api/mobile/support/DataStreamSerializableMessageConverter.java	2012-01-06 12:12:16 +0000
@@ -18,14 +18,24 @@
     @Override
     public boolean canRead( Class<?> clazz, MediaType mediaType )
     {
-        return MediaTypes.MEDIA_TYPES.contains( mediaType) && DataStreamSerializable.class.isAssignableFrom( clazz );
+    	if (mediaType == null){
+    		return DataStreamSerializable.class.isAssignableFrom( clazz );
+    	}
+    	else {
+    		return MediaTypes.MEDIA_TYPES.contains( mediaType) && DataStreamSerializable.class.isAssignableFrom( clazz );
+    	}
     }
 
 
     @Override
     public boolean canWrite( Class<?> clazz, MediaType mediaType )
     {
-        return MediaTypes.MEDIA_TYPES.contains( mediaType) && DataStreamSerializable.class.isAssignableFrom( clazz );
+    	if (mediaType == null){
+    		return DataStreamSerializable.class.isAssignableFrom( clazz );
+    	}
+    	else {
+    		return MediaTypes.MEDIA_TYPES.contains( mediaType) && DataStreamSerializable.class.isAssignableFrom( clazz );
+    	}
     }
 
     @Override

=== modified file 'dhis-2/dhis-web/dhis-web-api-mobile/src/main/resources/META-INF/dhis/servlet.xml'
--- dhis-2/dhis-web/dhis-web-api-mobile/src/main/resources/META-INF/dhis/servlet.xml	2012-01-05 20:39:23 +0000
+++ dhis-2/dhis-web/dhis-web-api-mobile/src/main/resources/META-INF/dhis/servlet.xml	2012-01-06 12:12:16 +0000
@@ -10,7 +10,11 @@
 	<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
 	
 	<!-- Enables the Spring MVC @Controller programming model -->
-	<annotation-driven />
+	<annotation-driven>
+    <message-converters>
+        <beans:bean class="org.hisp.dhis.api.mobile.support.DataStreamSerializableMessageConverter"/>
+    </message-converters>
+	</annotation-driven>
 
 	<context:component-scan base-package="org.hisp.dhis.api.mobile" />