IllegalStateException抱怨PowerMockRule由powermock类加载器而不是系统类加载器加载

Question

@RunWith(PowerMockRunner.class)
@PrepareForTest(StaticMethodsHolder.class)

public class MockNTestStaticMethodsHolder {

  @Rule public PowerMockRule rule = new PowerMockRule();

  @Test public void staticSvcClientMethod () {

    // blah blah blah
    mockstatic (StaticMethodsHolder.class);

    expect (StaticMethodsHolder.TomBradyIsStillTheBest()).andReturn(UNQUESTIONABLY);
    expect (StaticMethodsHolder.NEPatriotsStillTheBest()).andReturn(MAYBE);
    expect (StaticMethodsHolder.NEPatriotsLiiWereIdiots()).andReturn(TOTALLY);
    expect (StaticMethodsHolder.NEPatriotsWinsLiii()).andReturn(RU_KIDDING_ME);

  }

}

按以下顺序

Maven依赖项/属性：

1. powermock-version 1.6.6
2. easymock-version 3.4
3. EasyMock的
4. powermock模块-junit4
5. powermock-API-EasyMock的
6. powermock模块-junit4规则代理 （删除它会导致构造函数问题）
7. powermock模块-junit4规则 （删除此依赖项无效）
8. powermock-类加载-XStream的

运行时错误：

java.lang.IllegalStateException PowerMockRule can only be used
with the system classloader but was loaded by
org.powermock.core.classloader.MockClassLoader.

PowerMock正在咬自己的尾巴。它想要使用自己的类加载器，但JVM说PowerMockRule必须由系统加载。

我该怎么做才能解决这个问题？

Answer 1

您已经在使用PowermockRunner，您无需使用该规则。

https://github.com/powermock/powermock/wiki/powermockrule

如果您在使用Powermock功能时使用不同的跑步者，而Powermock功能是规则的用例。