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Unable to deserialize root-level `Instant` value from XML

See original GitHub issue

Unable to deserialise XML to Instant value

Jackson version: 2.10.1 Java version: Java 8

Code to reproduce:

XmlMapper mapper = new XmlMapper();
mapper.registerModule(new JavaTimeModule());
String instant = mapper.writeValueAsString(Instant.now());
Instant instantOutput = mapper.readValue(instant, Instant.class);

Stack trace:

Exception in thread "main" com.fasterxml.jackson.databind.exc.MismatchedInputException: Unexpected token (START_OBJECT), expected one of [VALUE_STRING, VALUE_NUMBER_INT, VALUE_NUMBER_FLOAT] for java.time.Instant value
 at [Source: (StringReader); line: 1, column: 1]
	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59)
	at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1442)
	at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1216)
	at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1148)
	at com.fasterxml.jackson.datatype.jsr310.deser.JSR310DeserializerBase._handleUnexpectedToken(JSR310DeserializerBase.java:105)
	at com.fasterxml.jackson.datatype.jsr310.deser.JSR310DeserializerBase._handleUnexpectedToken(JSR310DeserializerBase.java:118)
	at com.fasterxml.jackson.datatype.jsr310.deser.InstantDeserializer.deserialize(InstantDeserializer.java:231)
	at com.fasterxml.jackson.datatype.jsr310.deser.InstantDeserializer.deserialize(InstantDeserializer.java:50)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4202)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3205)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3173)
	at uk.co.argos.availability.server.Temp.main(Temp.java:19)

Issue Analytics

State:
Created 4 years ago
Comments:12 (7 by maintainers)

Top GitHub Comments

1reaction

cowtowncodercommented, Jun 30, 2020

I changed my mind. Since I have been able to, I think, to support this for basic JDK scalar values, I think same might be possible for date/time types as well. Not 100% certain yet but hope to test the idea soon.

0reactions

afayescommented, Jun 30, 2020

Awesome!