Hi Richard, Thanks for your fix, but I've been debuging the code and noticed that our problem was in other place. On MessageContextJAXWS class, on its setOperationMetaData() method, an InputSource that references the wsdl file is stored inside the context. This input stream is never closed, so a file descriptor remains open on each request. I've tried closing it on the finally section of the invoke() method on ServiceEndpointInvoker class and it works successfully without leaving open file descriptors. I think you would like to know in order to fix this issue. Thank you very much! Bortx View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4180589#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...