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Samebug tips

  1. ,

    The easiest solution is to provide a default constructor for the class you want to convert from/to json.

  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 Comencau
, 2 years ago
Can not find a (Map) Key deserializer for type [collection type; class java.util.ArrayList, contains [simple type, class java.lang.Long]]
via GitHub by fdinoff
, 2 years ago
Can not find a (Map) Key deserializer for type [array type, component type: [simple type, class byte]]
via Stack Overflow by Gili
, 2 years ago
Can not find a (Map) Key deserializer for type [simple type, class java.lang.Class]
via Stack Overflow by Shoner Sul
, 1 year ago
Empty query.