final Hashtable<?, ?> usemap = EnvHelp.mapToHashtable(attributes);
InitialContext ctx =
new InitialContext(usemap);
ctx.unbind(boundJndiUrl);
ctx.close();
} catch (NamingException e) {
if (tracing) logger.trace("stop", "failed to unbind RMI server: "+e);
if (logger.debugOn()) logger.debug("stop",e);