Receber um Json e converter em objeto no Spring 4 + Jackson

Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Can not construct instance of br.com.lojavirtual.entity.Person: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)
at [Source: java.io.PushbackInputStream@3e64cd8; line: 1, column: 2]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of br.com.lojavirtual.entity.Person: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)
at [Source: java.io.PushbackInputStream@3e64cd8; line: 1, column: 2]

@RequestMapping(value="/person",method=RequestMethod.POST,produces="application/json")
	public String loadPerson(@RequestBody Person json){
		
		ObjectMapper mapper = new ObjectMapper();
		Map<String, Object> map = mapper.readValue(json,Person.class);
		
		return person.toString();
	}

		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-core</artifactId>
			<version>2.8.6</version>
		</dependency>

		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.8.6</version>
		</dependency>