public synchronized boolean buildGroupJsIfNeeded(Group group, OutputStream out, ServletContext servletContext) throws IOException {
if(mustBuildGroup(group)){
OutputStreamWriter w = new OutputStreamWriter(out);
List jsResources = group.getJsNames();
String location = group.getLocation();
ResourcesProcessor rp = group.getJSProcessor();
rp.process(group, jsResources, servletContext, w, location);
w.flush(); // JSO-16
group.setLastLoadTime(System.currentTimeMillis());
return true;
}
return false;