code: @Override
    @SuppressWarnings("unchecked")
    public <E> E getState(Class<E> stateType) {
      return stateType == CxDxSessionState.class ? (E) this.sessionData.getCxDxSessionState() : null;
    }
docs: /*
  (non-Javadoc)
  @see org.jdiameter.api.app.StateMachine#getState(java.lang.Class)