Has anyone had any experience with getting the java.util.List multipart support working as described at http://bill.burkecentral.com/2008/10/23/jax-rs-multipart-support-with-res... ? When running the Client Framework I get the following: Exception in thread "main" java.lang.RuntimeException: Could not find MessageBodyWriter for class java.util.List and mediaType multipart/mixed | at org.jboss.resteasy.client.core.MessageBodyParameterMarshaller.getMessageBodyWriter(MessageBodyParameterMarshaller.java:59) | at org.jboss.resteasy.client.core.MessageBodyParameterMarshaller.buildRequest(MessageBodyParameterMarshaller.java:48) | at org.jboss.resteasy.client.core.WebRequestIntializer.setHeadersAndRequestBody(WebRequestIntializer.java:43) | at org.jboss.resteasy.client.core.ClientInvoker.initBaseMethod(ClientInvoker.java:107) | at org.jboss.resteasy.client.core.ClientInvoker.invoke(ClientInvoker.java:67) | at org.jboss.resteasy.client.core.ClientProxy.invoke(ClientProxy.java:47) I see the provider being loaded (or at least what I would assume is the provider) | ... | 78 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in provider org.jboss.resteasy.plugins.providers.multipart.ListMultipartReader | 78 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in provider org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataReader | 78 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in provider org.jboss.resteasy.plugins.providers.multipart.MapMultipartFormDataReader | 94 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.MultipartWriter | 94 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.MultipartFormDataWriter | 94 [main] INFO org.jboss.resteasy.plugins.providers - Adding built in providerorg.jboss.resteasy.plugins.providers.multipart.ListMultipartWriter | ... | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4213863#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...