public static String unQuote(String string) {
        return string == null ? null : string.replaceAll("^\"|\"$", "");
    }
@Test
    public void shouldUnQuote() throws Exception {
        assertThat(unQuote("\"Hello World\""), is("Hello World"));
        assertThat(unQuote(null), is(nullValue()));
        assertThat(unQuote("\"Hello World\" to everyone\""), is("Hello World\" to everyone"));
    }