final PhasedBuildActionResult resultEvent = (PhasedBuildActionResult) event;
            final Object deserializedResult = payloadSerializer.deserialize(resultEvent.result);

            phasedActionResultListener.onResult(new PhasedActionResult<Object>() {
                @Override
                public Object getResult() {
                    return deserializedResult;
                }

                @Override

        this.projectsLoadedHandler = projectsLoadedHandler;
        this.buildFinishedHandler = buildFinishedHandler;
    }

    @Override
    public void onResult(PhasedActionResult<?> result) {
        Object model = result.getResult();
        PhasedActionResult.Phase type = result.getPhase();
        if (type == PhasedActionResult.Phase.PROJECTS_LOADED) {

    req.onreadystatechange = function(event) {
      if (req.readyState !== 4)
        return;

      window.setTimeout(function() {
        if (req.status === 200)
          onResult(isBinary ? req.response : req.responseText);
        else
          onResultFail(req.status);
      }, 0);
    };
    req.send(null);
  }

  function onResultFail(err) {