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Samebug tips

  1. ,
    Expert tip

    Try indicating constructor to use @JsonCreator annotation.

  2. ,

    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 web

via Stack Overflow by user2410148
, 1 year ago
Can not instantiate value of type [simple type, class com.web.dtos.SolutionDto] from String value ('{"testId":"1719126"}'); no single-String constructor/factory method at [Source: org.apache.http.conn.EofSensorInputStream@554083; line: 1, column: 1]
via GitHub by tcompiegne
, 8 months ago
Can not instantiate value of type [simple type, class io.gravitee.am.identityprovider.ldap.LdapIdentityProviderConfiguration] from String value ('{"contextSourceUrl":"","contextSourceBase":"","contextSourceUsername":"","contextSourcePassword
via GitHub by dminkovsky
, 1 year ago
Can not instantiate value of type [simple type, class java.util.Optional<java.lang.String>] from String value ('query Index { session { ...F0 } } fragment F0 on Session { id, created }'); no single-String constructor/factory method at [Source: [B@642ed413; line: 1, column: 2] (through reference chain: pony.services.Builder["query"])
via Stack Overflow by OneHP
, 2 years ago
Can not instantiate value of type [simple type, class example.Type] from String value ('type/2222'); no single-String constructor/factory method at [Source: N/A; line: -1, column: -1] (through reference chain: example.Item["type"])
via Stack Overflow by Thomas Leduc
, 2 years ago
Can not instantiate value of type [simple type, class java.time.ZonedDateTime] from String value ('2012-06-30T12:30:40.000+0000'); no single-String constructor/factory method at [Source
via GitHub by huazi221
, 1 year ago
Can not instantiate value of type [simple type, class message.OrderMessage] from String value ('{"to":"shouyinji","from":"fuwsheng2","orderNo":"jhhhh"}'); no single-String constructor/factory method at [Source: io.netty.buffer.ByteBufInputStream@b6b034c; line: 1, column: 17]
com.fasterxml.jackson.databind.JsonMappingException: Can not instantiate value of type [simple type, class com.web.dtos.SolutionDto] from String value ('{"testId":"1719126"}'); no single-String constructor/factory method
 at [Source: org.apache.http.conn.EofSensorInputStream@554083; line: 1, column: 1]	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:148)	at com.fasterxml.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:757)	at com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:277)	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:289)	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1133)	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:135)	at com.fasterxml.jackson.module.afterburner.deser.SuperSonicBeanDeserializer.deserialize(SuperSonicBeanDeserializer.java:123)	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3051)	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2192)