WS services fail with: TransformationException: No wrapper handler is provided for databinding: null

Currently all services using <binding.ws> fail with the following exception:

org.apache.tuscany.databinding.TransformationException: No wrapper handler is provided for databinding: null
at org.apache.tuscany.core.databinding.transformers.Input2InputTransformer.getWrapperHandler(Input2InputTransformer.java:194)
at org.apache.tuscany.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:115)
at org.apache.tuscany.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:46)
at org.apache.tuscany.databinding.impl.DefaultMediator.mediate(DefaultMediator.java:77)
at org.apache.tuscany.core.databinding.wire.DataTransformationInteceptor.transform(DataTransformationInteceptor.java:168)
at org.apache.tuscany.core.databinding.wire.DataTransformationInteceptor.invoke(DataTransformationInteceptor.java:66)
at org.apache.tuscany.binding.axis2.Axis2ServiceBindingProvider.invokeTarget(Axis2ServiceBindingProvider.java:374)
at org.apache.tuscany.binding.axis2.Axis2ServiceInOutSyncMessageReceiver.invokeBusinessLogic(Axis2ServiceInOutSyncMessageReceiver.java:53)
at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.receive(AbstractInOutSyncMessageReceiver.java:39)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:144)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:279)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:116)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.tuscany.binding.axis2.Axis2ServiceServlet.service(Axis2ServiceServlet.java:234)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:367)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:285)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:627)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329)
at org.apache.tuscany.core.work.Jsr237Work.run(Jsr237Work.java:61)
at org.apache.tuscany.core.work.ThreadPoolWorkManager$DecoratingWork.run(ThreadPoolWorkManager.java:206)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
at java.lang.Thread.run(Thread.java:595)