我正在尝试使用mockito/powermock模拟私有(private)方法。我得到NullpointerException我尝试做的简单示例是:实际类(class)importcom.siriusforce.plugin.common.PluginSystem;importcom.wellsfargo.core.business.service.dp.fulfillment.MockitoBusinessService;publicclassMockitoBusinessOperationImplimplementsMockitoBusinessOperation{privateM