com.fasterxml.jackson.databind.JsonMappingException: Argument #1 of constructor [constructor for com.analyticspot.ml.framework.testutils.WordCounts, annotations: {interface com.fasterxml.jackson.annotation.JsonCreator=@com.fasterxml.jackson.annotation.JsonCreator(mode=DEFAULT)}] has no property name annotation; must have name when multiple-parameter constructor annotated as Creator at [Source: {"sourceToken":{"id":{"name":"words","clazz":"java.util.List"}},"resultId":{"prefix":"wordCounts","clazz":"java.lang.Integer"},"wordMap":{"foo":0,"bar":1,"baz":2}}; line: 1, column: 1]


Samebug tips2

Try indicating constructor to use @JsonCreator annotation.


2 months ago
Expert tip

You are trying to deserialize a type for which Jackson does not provide a default mapper. You should create your custom mapper for this type.


Solutions on the web581

Solution icon of github
via GitHub by oliverdain
, 9 months ago
annotation; must have name when multiple-parameter constructor annotated as Creator at [Source: {"sourceToken":{"id":{"name":"words","clazz":"java.util.List"}},"resultId":{"prefix":"wordCounts","clazz":"java.lang.Integer"},"wordMap":{"foo":0,"bar":1,"baz":2}}; line: 1, column: 1]

Solution icon of stackoverflow
=@com.fasterxml.jackson.annotation.JsonCreator(mode=DEFAULT)}] has no property name annotation; must have name when multiple-parameter constructor annotated as Creator at [Source: {"z":5,"xoom":"a"}; line: 1, column: 1]

Solution icon of github
Argument #0 of constructor [constructor for org.zalando.nakadi.client.java.model.DataChangeEvent, annotations: {interface com.fasterxml.jackson.annotation.JsonCreator=@com.fasterxml.jackson.annotation.JsonCreator(mode=DEFAULT)}] has no property name

Solution icon of stackoverflow
Argument #0 of constructor [constructor for Task, annotations: [null]] has no property name annotation; must have name when multiple-parameter constructor annotated as Creator at [Source: {"id":"AT-5", ...}; line: 1, column: 1]

Solution icon of github
via GitHub by ruslansennov
, 4 months ago
No suitable constructor found for type [simple type, class javaslang.jackson.datatype.seq.SeqTest$Parameterized<java.lang.Integer>]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?) at [Source: {"value":[1]}; line: 1, column: 2]

Solution icon of github
via GitHub by ruslansennov
, 11 months ago
No suitable constructor found for type [simple type, class javaslang.jackson.datatype.seq.SeqTest$Parameterized<java.lang.Integer>]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?) at [Source: {"value":[1]}; line: 1, column: 2]

Solution icon of github
Could not find creator property with name 'nested' (in class com.example.JacksonTest$Foo) at [Source: { "foo" : "something", "bar" : "something" }; line: 1, column: 1]

Solution icon of web
via howtodoinjava.com by Unknown author, 1 year ago
No suitable constructor found for type [simple type, class com.howtodoinjava.jackson2.example.pojo.Employee]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?) at [Source: {“id”:1,”name”:”Lokesh Gupta”,”age”:34,”location”:”India”}; line: 1, column: 2]

Solution icon of web
via howtodoinjava.com by Unknown author, 1 year ago
No suitable constructor found for type [simple type, class com.howtodoinjava.jackson2.example.pojo.Employee]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?) at [Source: {“id”:1,”name”:”Lokesh Gupta”,”age”:34,”location”:”India”}; line: 1, column: 2]

Solution icon of stackoverflow
Class com.fasterxml.jackson.datatype.joda.deser.DateTimeDeserializer has no default (no arg) constructor at [Source: java.io.InputStreamReader@525b461a; line: 1, column: 1]

Stack trace

com.fasterxml.jackson.databind.JsonMappingException: Argument #1 of constructor [constructor for com.analyticspot.ml.framework.testutils.WordCounts, annotations: {interface com.fasterxml.jackson.annotation.JsonCreator=@com.fasterxml.jackson.annotation.JsonCreator(mode=DEFAULT)}] has no property name annotation; must have name when multiple-parameter constructor annotated as Creator
     at [Source: {"sourceToken":{"id":{"name":"words","clazz":"java.util.List"}},"resultId":{"prefix":"wordCounts","clazz":"java.lang.Integer"},"wordMap":{"foo":0,"bar":1,"baz":2}}; line: 1, column: 1]
	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:305)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:268)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
	at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
	at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:476)
	at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:3899)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3794)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2842)
	at com.analyticspot.ml.framework.serialization.GraphSerDeserTest.testTokenGroupsSerialize(GraphSerDeserTest.kt:166)

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