if ((servlet != null) && (filterChain != null)) {
filterChain.doFilter(hreq, hres);
}
hreq.removeAttribute(Globals.JSP_FILE_ATTR);
} catch (IOException e) {
hreq.removeAttribute(Globals.JSP_FILE_ATTR);
log(sm.getString("standardWrapper.serviceException",
wrapper.getName()), e);
throwable = e;
exception(request, response, e);
} catch (UnavailableException e) {