#fixed code
                                @Test
    public void testRemovePadding() throws Exception {
        String name = new Json(text).removePadding("callback").jsonPath("$.name").get();
        assertThat(name).isEqualTo("json");
    }
#vulnerable code 
                                @Test
    public void testRemovePadding() throws Exception {
        String name = new Json(text).removePadding("callback").jsonPath("$.name").get();
        assertThat(name).isEqualTo("json");
        Page page = null;

        page.getJson().jsonPath("$.name").get();
        page.getJson().removePadding("callback").jsonPath("$.name").get();
    } 
                            #location 7 
                            #vulnerability type NULL_DEREFERENCE