thread.start();
        thread.join(1000);

        String output = thread.getOutput();
        assertEquals("", output);
    }

    @Test
    public void test_callbackExceptionHandling() throws IOException, InterruptedException {
        Process mockProcess = createMockProcess("exception test");
        Consumer<String> faultyCallback = line -> {

Shinsuke Sugaya <******@****.***> 1769950104 +0900