阅读背景:

Jackson+Kotlin组合报错Cannotconstructinstanceof`java.time.LocalDateTime`

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Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.cityos.entity.Licence` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: (String)"{"id":1,"cd":"2019-09-09T09:25:27","v":"1.0"}"; line: 1, column: 2]
	at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:67) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1452) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1028) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1297) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1611) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1219) ~[jackson-databind-2.9.9.jar:2.9.9]
	at com.cityos.service.RuntimeService.scanLicence(RuntimeService.kt:63) ~[main/:na]
	at com.cityos.service.RuntimeService.run(RuntimeService.kt:33) ~[main/:na]
	at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:772) ~[spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
	... 6 common frames omitted
Cause



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