@Test
public void createStandardObjectMapper_base64Variant() throws Exception {

  byte[] bytes = new byte[] {(byte) 0xff, (byte) 0xef};
  ObjectMapper mapper = ObjectMapperUtil.createStandardObjectMapper();
  assertThat(mapper.writeValueAsString(bytes)).isEqualTo("\"_-8\"");
  assertThat(mapper.readValue("\"_-8\"", byte[].class)).isEqualTo(bytes);
}