Vadim Pakhnushev created IGNITE-23648:
-----------------------------------------
Summary: Micronaut incorrectly deserializes Instant objects
Key: IGNITE-23648
URL: https://issues.apache.org/jira/browse/IGNITE-23648
Project: Ignite
Issue Type: Bug
Components: rest
Reporter: Vadim Pakhnushev
Jackson library serializes {{Instant}} by default as a string of the form
{{millis.nanos}}.
Micronaut uses Jackson to deserialize JSON payload, in particular, it uses
{{ObjectMapper.readTree}} method which reads JSON into a {{JsonNode}}. It seems
that when doing so, Jackson treats an {{Instant}} serialized by Jackson using a
{{double}} deserializer.
This could lead to the loss of precision.
The following test fails with the current version of Jackson:
{code:java}
@Test
void instant() throws JsonProcessingException {
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new JavaTimeModule());
Instant instant = Instant.ofEpochSecond(1730977056L, 232784600);
String s = mapper.writeValueAsString(instant);
JsonNode jsonNode = mapper.readTree(s);
Instant instant1 = mapper.treeToValue(jsonNode, Instant.class);
assertThat(instant1.getEpochSecond(), is(instant.getEpochSecond()));
assertThat(instant1.getNano(), is(instant.getNano())); // fails here, the
actual value is 232784500
}
{code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
