Java反射不会修改我的@Named bean变量

@Named(\"PoiBean\")
@SessionScoped
public class PoiBean implements ActionContext, Serializable {
   private String name = \"www\";

   @EJB
   private NavigationServiceRemote nav;

@PostConstruct
private void testReflection() {
    try {
        nav.TestMe(this);
    } catch (NoSuchMethodException ex) {
        Logger.getLogger(PoiBean.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        Logger.getLogger(PoiBean.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalArgumentException ex) {
        Logger.getLogger(PoiBean.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InvocationTargetException ex) {
        Logger.getLogger(PoiBean.class.getName()).log(Level.SEVERE, null, ex);
    }
}

public void prepareListAllForm() {
    this.setName(\"test me\");
    }
}

@Stateless(mappedName=\"NavigationService\")
public class NavigationServiceBean implements NavigationServiceRemote, NavigationContext {
    @Override
     public void TestMe(ActionContext ctx) throws NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException { 

        Method method = ctx.getClass().getMethod(\"prepareListAllForm\", new Class[] {});
        method.invoke(ctx, new Object[] {});
      }