return call(new PreloadJarTask(jars, local));
}
PipeWindow getPipeWindow(int oid) {
synchronized (pipeWindows) {
Key k = new Key(oid);
WeakReference<PipeWindow> v = pipeWindows.get(k);
if (v != null) {
PipeWindow w = v.get();
if (w != null) {
return w;