implement getDocument method
diff --git a/features/org.eclipse.actf.ai-feature/feature.xml b/features/org.eclipse.actf.ai-feature/feature.xml
index 16aa9f4..fa3063f 100644
--- a/features/org.eclipse.actf.ai-feature/feature.xml
+++ b/features/org.eclipse.actf.ai-feature/feature.xml
@@ -191,4 +191,11 @@
          version="0.0.0"
          unpack="false"/>
 
+   <plugin
+         id="org.eclipse.actf.model.dom.html"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
 </feature>