killbill-aplcache

diff --git a/osgi-bundles/jruby/src/main/java/com/ning/billing/osgi/bundles/jruby/JRubyPlugin.java b/osgi-bundles/jruby/src/main/java/com/ning/billing/osgi/bundles/jruby/JRubyPlugin.java
index ea0fb90..9228928 100644
--- a/osgi-bundles/jruby/src/main/java/com/ning/billing/osgi/bundles/jruby/JRubyPlugin.java
+++ b/osgi-bundles/jruby/src/main/java/com/ning/billing/osgi/bundles/jruby/JRubyPlugin.java
@@ -96,7 +96,7 @@ public abstract class JRubyPlugin {
         // Register the rack handler
         final IRubyObject rackHandler = pluginInstance.callMethod("rack_handler");
         if (!rackHandler.isNil()) {
-            osgiKillbill.registerServlet(pluginGemName, (HttpServlet) rackHandler);
+            osgiKillbill.registerServlet(pluginGemName, (HttpServlet) rackHandler.toJava(HttpServlet.class));
         }
     }