org.powermock.reflect.Whitebox.setInternalState(Object, Class<?>, Object) not working with object reference

[rea-al]

PowerMock 1.7.4 should contain the ability of modifying a private static final field as stated by contributor on #673 but next issue is displayed:

org.powermock.reflect.exceptions.FieldNotFoundException: No instance field assignable from "org.apache.logging.log4j.Logger" could be found in the class hierarchy of Foo.

While running next test:

public class Foo {
    private static final Logger LOG = LogManager.getLogger(Foo.class.getName());
}

public class FooTest {
    @Rule
    public MockitoRule mockitoRule = MockitoJUnit.rule();

    @Mock
    Logger logger;

    @Test
    public void test() {
        Foo sut = new Foo();
        
        Whitebox.setInternalState(sut, Logger.class, logger);
    }
}

With the following environment:

• OS: Windows 10 Enterprise x64
• Java: Oracle jdk1.8.0_161 x64
• Maven dependencies:
  • junit:junit:4.12
  • org.mockito:mockito-core:2.23.0
  • org.powermock:powermock-module-junit4:1.7.4
  • org.powermock:powermock-api-mockito2:1.7.4

[rea-al]

Notice that if you replace Whitebox.setInternalState(sut, Logger.class, logger); for Whitebox.setInternalState(Foo.class, "LOG", logger); this works as expected.