我在尝试使用powermock模拟类时遇到了一个问题。首先，这里是我目前的gradle依赖关系：

testCompile group: 'junit', name: 'junit', version: '4.12'
testCompile "org.mockito:mockito-core:2.+"
testCompile group: 'org.powermock', name: 'powermock-module-junit4', version: '2.0.2'
testCompile group: 'org.powermock', name: 'powermock-api-mockito2', version: '2.0.2'

我正试图模拟打给Kafka经纪人的电话。代码如下所示：

public class MyConsumer {
    public Consumer<Long, String> createConsumer() {
        ...
        Consumer<Long, String> consumer = new KafkaConsumer<>(props);
        consumer.subscribe(TOPIC);
        ....
    }
}

这两条线 createConsumer 都是我想嘲笑的。我的测试是这样的：

@RunWith(PowerMockRunner.class)
@PrepareForTest(MyConsumer.class)
public class MyConsumerTest {

    @Test
    public void testCreateConsumer() {
        ...
        KafkaConsumer mockConsumer = mock(KafkaConsumer.class);
        doNothing().when(mockConsumer).subscribe(TOPIC);
        PowerMockito.whenNew(KafkaConsumer.class).withAnyArguments().thenReturn(mockConsumer);

        Consumer<Long, String> result = myConsumerInstance.createConsumer();
        ...
    }
}

当我尝试运行测试时，它们从未开始，我得到以下错误：

> Task :compileTestJava FAILED
/Users/myuser/myproject/src/test/java/myConsumerTest.java:101: error: unreported exception Exception; must be caught or declared to be thrown
       PowerMockito.whenNew(KafkaConsumer.class).withAnyArguments().thenReturn(mockConsumer);
                                                                 ^
Note: /Users/myuser/myproject/src/test/java/myConsumerTest.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /Users/myuser/myproject/src/test/java/myConsumerTest.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

FAILURE: Build failed with an exception.

所以我想我应该把这句话总结一下，试着了解更多的错误信息。当我这样做的时候，测试运行了，但是这个特定的测试会失败，产生以下错误：

Kafka.analyticsConsumerTest > testCreateConsumer FAILED
    java.lang.RuntimeException at PowerMockTestNotifierImpl.java:84
        Caused by: org.mockito.exceptions.base.MockitoException at MethodRoadie.java:87

我一辈子都不知道如何从中提取更多的信息。以前有人遇到过这样的事情吗？
我目前的工作理论是关于Kafka消费阶层是如何返回消费者的？此示例中的使用者是 org.apache.kafka.clients.consumer.Consumer . 也许我没有正确地嘲笑这一点？任何协助都将不胜感激。