response.contentType in FunctionalTest is null

[francisdb]

It seems that the contentType is not set in functional tests, works for pure play controllers

    @Test
    public void testTest() {
        Response response = GET("/rest/v1/test");
        assertIsOk(response);
        // this part fails
        //assertContentType("application/json", response);
        System.out.println(response.contentType);
    }