Hi again, Is it not possible to return a map/hashmap from the ejb web service? I'm using an axis client for that as below Call call = (Call) service.createCall(); | call.setTargetEndpointAddress( new java.net.URL(endpoint) ); | call.setOperationName(new QName("http://session.um.com/";, "getAuc") ); | | | call.addParameter("arg0", | org.apache.axis.Constants.XSD_INT, | javax.xml.rpc.ParameterMode.IN); | | | call.setReturnClass(HashMap.class); | HashMap ret = (HashMap) call.invoke( new Object[] {"1"} Thought it throws no error, the returned Map never has any contents in them. Also, if instead of setReturnClass I try to use setReturnType(org.apache.axis.Constants.XSD_ANY) it gives me the below error: could not find deserializer for type {http://www.w3.org/2001/XMLSchema}any View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4170986#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...