我有一個包含私有 ExecutorService 實例的類。在類中，我有一個方法運行提交方法并捕獲 RejectedExecutionException。但是，我在模擬 ExecutorService 實例以引發(fā)異常以便我可以完成測試覆蓋率時遇到了麻煩。我正在使用 JMockit 1.45。我已經(jīng)瀏覽過 JMockit 教程和其他網(wǎng)站；無論我使用@Mocked、@Capturing，還是創(chuàng)建一個新的假類，它似乎都不起作用。// Implemented Class:public class TaskRegister {    private ExecutorService executor;    public TaskRegister() {        this.executor = Executors.newFixedThreadPool(5);    }    public void executeTask(Runnable task) {        try {            this.executor.submit(task);        } catch (RejectedExecutionException e) {            System.out.println(e.getMessage);        }    }}// Unit Test Class:public class TestTaskRegister {    @Tested    private TaskRegister tested;    private static int counter;    @Test // this works    public void runNormalTask() throws InterruptedException {        counter = 0;        Runnable mockTask = new Runnable() {            counter++;        }        tested.executeTask(mockTask);        Thread.sleep(100); // Allow executor to finish other thread.        assertEquals(1, counter);    }    @Test // this doesn't work, will have missing invocation error.    public void throwsError (@Capturing ExecutorService executor) throws InterruptedException {        counter = 0;        // somehow the tested class still runs the actual executor         // and not the mocked one.        new Expectations() {{             executor.submit((Runnable) any);             result = new RejectedExecutionException();        }};        Runnable mockTask = new Runnable() {            // some task        }        tested.executeTask(mockTask);        Thread.sleep(100);        assertEquals(0, counter);    }}我希望 @Capturing 攔截真正的執(zhí)行程序?qū)崿F(xiàn)并在調(diào)用 executor.submit 時拋出異常，但它沒有這樣做。