fail("Should throw ContinuationPending");
} catch (ContinuationPending pending) {
// serialize
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
sos.writeObject(globalScope);
sos.writeObject(pending.getContinuation());
sos.close();
baos.close();
byte[] serializedData = baos.toByteArray();