Introduce a MockitoComponentMockingRule to replace AbstractMockingComponentTestCase

@ComponentList({DefaultDiffManager.class})
public class DefaultDiffManagerTest
{
    @Rule
    public final MockitoComponentMockingRule<DiffManager> mocker =
        new MockitoComponentMockingRule(DefaultDiffManager.class);
...
    @Test
    public void testDiffStringList() throws Exception
    {
        // Null

        DiffResult<String> result = this.mocker.getMockedComponent().diff(null, null, null);
...