@Test
    @Override
    public void echoPostWithEmptyBody() throws Exception {
        super.echoPostWithEmptyBody();
    }
An {@link IOException} or {@link EofException} should be raised if a handler closed
its {@code ServletOutputStream} and then tries to write something to it.
jetty/jetty12/src/test/java/com/linecorp/armeria/server/jetty/JettyServiceTest.java