Having class like this
@AllArgsConstructor
@NoArgsConstructor
@Getter
@Setter
public final class ActiveRecoveryProcess {
private UUID recoveryId;
private Instant startedAt;
}
I'm getting com.fasterxml.jackson.databind.exc.InvalidFormatException
with message Cannot deserialize value of type
java.time.Instant from String "2020-02-22T16:37:23": Failed to deserialize java.time.Instant: (java.time.format.DateTimeParseException) Text '2020-02-22T16:37:23' could not be parsed at index 19
JSON input
{"startedAt": "2020-02-22T16:37:23", "recoveryId": "6f6ee3e5-51c7-496a-b845-1c647a64021e"}
Jackson configuration
@Autowired
void configureObjectMapper(final ObjectMapper mapper) {
mapper.registerModule(new ParameterNamesModule())
.registerModule(new Jdk8Module())
.registerModule(new JavaTimeModule());
mapper.findAndRegisterModules();
}
EDIT
JSON is generated from postgres
jsonb_build_object(
'recoveryId', r.recovery_id,
'startedAt', r.started_at
)
where r.started_at
is TIMESTAMP.
One way to do this is to create a Converter
.
public final class NoUTCInstant implements Converter<LocalDateTime, Instant> {
@Override
public Instant convert(LocalDateTime value) {
return value.toInstant(ZoneOffset.UTC);
}
@Override
public JavaType getInputType(TypeFactory typeFactory) {
return typeFactory.constructType(LocalDateTime.class);
}
@Override
public JavaType getOutputType(TypeFactory typeFactory) {
return typeFactory.constructType(Instant.class);
}
}
Then annotate the field.
@JsonDeserialize(converter = NoUTCInstant.class)
private Instant startedAt;
The String you're trying to parse, 2020-02-22T16:37:23 , doesn't end in Z . Instant expects this as it stands for UTC . It simply cannot be parsed. Concat the String with Z to resolve the issue.
String customInstant = "2020-02-22T16:37:23";
System.out.println("Instant of: " + Instant.parse(customInstant.concat("Z")));
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