@Test
public void equalsAndHashcode() throws Exception {

    OffsetTimeConverter conv1 = new OffsetTimeConverter();
    OffsetTimeConverter conv2 = new OffsetTimeConverter();
    assertThat(conv2).isEqualTo(conv1);
    assertThat(conv2).isNotEqualTo(new OptionalConverter());
    assertThat(conv2).isNotEqualTo(null);
    assertThat(conv2.hashCode()).isEqualTo(conv1.hashCode());
}