request, plid, portletName, lifecycle);
if (portletURL == null) {
_log.error(
"Render response is null because this tag is not being " +
"called within the context of a portlet");
<BUG>return StringPool.BLANK;
}</BUG>
if (Validator.isNotNull(windowState)) {
portletURL.setWindowState(
WindowStateFactory.getWindowState(windowState));

request, plid, portletName, lifecycle);
if (portletURL == null) {
_log.error(
"Render response is null because this tag is not being " +
"called within the context of a portlet");
return;
}
if (Validator.isNotNull(windowState)) {
portletURL.setWindowState(
WindowStateFactory.getWindowState(windowState));
