MismatchedInputException when parse xml to pojo

[reusu]

jackson-dataformat-2.9.0.pr2.jar

1.readValue:
<?xml version="1.0" encoding="ISO-8859-1"?> <profile> <registrations> </registrations> </profile>
https://www.v2ex.com/i/wBH8y6GW.jpeg

return:
com.fasterxml.jackson.databind.exc.MismatchedInputException: Can not construct instance of entity.api.statusXstream.StatusXMLRegistrations (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('
')
at [Source: (StringReader); line: 4, column: 3] (through reference chain: com.shenou.fs.core.entity.api.statusXstream.StatusXMLProfile["registrations"])
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:62) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1307) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1009) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:370) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:316) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1359) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:158) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:149) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:124) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:275) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:139) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3944) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2925) ~[jackson-databind-2.9.0.pr2.jar:2.9.0.pr2]

2.readValue:
https://www.v2ex.com/i/IuXfN5KB.jpeg
<?xml version="1.0" encoding="ISO-8859-1"?><profile><registrations></registrations></profile>

return:
secuucess

---

but i usually parse type 1 xml
how to fix it

[cowtowncoder]

Please include code to reproduce the problem.

[reusu]

XmlUtils.java

public class XmlUtils {
	private static Logger logger = LogManager.getLogger(XmlUtils.class);
	private static XmlMapper xmlMapper = new XmlMapper();
	static{
		xmlMapper.configure(JsonGenerator.Feature.QUOTE_FIELD_NAMES, true);
		xmlMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
		xmlMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, true);
		xmlMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
		xmlMapper.setSerializationInclusion(Include.NON_NULL);
	}
	private XmlUtils(){}
	public static Object getVo(String xml, Class<?> inClass){
		try{
			return xmlMapper.readValue(xml, inClass);
		}catch (Exception e) {
			logger.error("JacksonXML Error",e);
			return null;
		}
	}
	public static String toReturnXml(Object obj){
		try{
			return xmlMapper.writeValueAsString(obj);
		}catch (Exception e) {
			logger.error("JacksonXML Error",e);
			return "";
		}
	}
}

StatusXMLProfile..java

@JacksonXmlRootElement(localName = "profile")
public class StatusXMLProfile implements Serializable{
	private static final long serialVersionUID = 1L;
	private StatusXMLRegistrations registrations;
	public StatusXMLRegistrations getRegistrations() {
		return registrations;
	}
	public void setRegistrations(StatusXMLRegistrations registrations) {
		this.registrations = registrations;
	}
}

test.java

	public static void main(String[] args) throws Exception {
		//type1 throw exception
		String xml = "PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iSVNPLTg4NTktMSI/Pg0KPHByb2ZpbGU+DQogIDxyZWdpc3RyYXRpb25zPg0KICA8L3JlZ2lzdHJhdGlvbnM+DQo8L3Byb2ZpbGU+";
		xml = new String(Base64.getDecoder().decode(xml),"UTF-8");
		System.out.println(xml);
		StatusXMLProfile sxv = (StatusXMLProfile)XmlUtils.getVo(xml, StatusXMLProfile.class);
		//type2 secucess
		xml = "PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iSVNPLTg4NTktMSI/Pjxwcm9maWxlPjxyZWdpc3RyYXRpb25zPjwvcmVnaXN0cmF0aW9ucz48L3Byb2ZpbGU+";
		xml = new String(Base64.getDecoder().decode(xml),"UTF-8");
		System.out.println(xml);
		sxv = (StatusXMLProfile)XmlUtils.getVo(xml, StatusXMLProfile.class);
	}

[cowtowncoder]

Actually this is the same issue as #318: closing this one since the other issue has matching tests; this would get resolved at same time.