hi I am trying web service,where it returns collection. following is the code snippet, @WebMethod() public Collection getAccountList() { Query query=em.createQuery("from CustomerInfo c"); return query.getResultList(); } the problem is at the time of deploying i am getting following warning, WARN [SchemaTypeCreator] JAX-RPC does not allow collection types skipping: customer.__JBossWS_CustomerRegisteration_EndpointInterfacePort_getAccountListResponse.result i am using JBoss 4.0.5,it supporting JAX-WS RI 2.0_03-b24-fcs version. could anybody tell me why this warning? is JAX WS not able to resolve the collection type? i tested my web service with webservice explorer provided myeclipse5.5 IDE,there web service returns null please help me in this? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060478#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...