Bean bean = new Bean();
        bean.defineProperty("additional", null);
        assertThat(bean.getProperty("additional"), nullValue());
    }

    @Test
    public void canInvokeMethodDefinedByClass() {
        Bean bean = new Bean();
        assertTrue(bean.hasMethod("javaMethod", "a", "b"));
        assertThat(bean.getAsDynamicObject().invokeMethod("javaMethod", "a", "b"), equalTo((Object) "java:a.b"));