/**
* Capture an exception and add store it. Update state to failed status (if not already there).
* Does not immediately report status back to Foreman. Only the original thread can return status
* to the Foreman.
*
* @param excep The failure that occurred.
*/
private void fail(final Throwable excep) {
deferredException.addThrowable(excep);
updateState(FragmentState.FAILED);
}
