// It will fail for C/S because the reference system in the
  // server is not in sync.
  @SuppressWarnings("unchecked")
  public void _testChangingSODA() throws Exception {
    populate();
    _b.a = new A();

    ObjectSet set = executeSODAQuery(_a, new Evaluator(_a));
    Assert.areEqual(0, set.size());

    set = executeSODAQuery(_b.a, new Evaluator(_b.a));
    Assert.areEqual(1, set.size());
  }
 private void populate() {
   _a = new A();
   _b = new B();
   _b.a = _a;
   store(_b);
 }