FasterXML / FasterXML/jackson-dataformat-xml

Support case where element and attribute have same name

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most-wanted name-collision
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Java
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30 天内合并 PR
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描述

### We are using jackson-dataformat-xml to convert an XML to JavaObject. Our use case is very peculiar such that the name of the attribute and element are the same in our XML. See the below sample.

`

`

**JavaObject:**

`@XmlRootElement
public class Work {

@JacksonXmlProperty(localName = "Status", isAttribute = true)
String status;

@JacksonXmlProperty(localName = "Status", isAttribute = false)
Status status_1;

@JacksonXmlRootElement
static class Status {

@JacksonXmlProperty(localName = "Status", isAttribute = true)
String status;
}

}`

**Implementation:**
```
XmlMapper xmlMapper = new XmlMapper();
try {
Work workOrder = xmlMapper.readValue(sample, Work.class);
System.out.println(workOrder.toString());
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}
```

**Errors:**
```
Exception in thread "main" java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Multiple fields representing property "Status": com.example.demo.Work#status vs com.example.demo.Work#status_1
at [Source: (StringReader); line: 1, column: 1]
at com.example.demo.DemoApplication.main(DemoApplication.java:23)
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Multiple fields representing property "Status": com.example.demo.Work#status vs com.example.demo.Work#status_1
at [Source: (StringReader); line: 1, column: 1]
at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:62)
at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:268)
at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:150)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:415)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:350)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:264)
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:642)
at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:4805)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4675)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3629)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3597)
at com.example.demo.DemoApplication.main(DemoApplication.java:20)
Caused by: java.lang.IllegalArgumentException: Multiple fields representing property "Status": com.example.demo.Work#status vs com.example.demo.Work#status_1
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.getField(POJOPropertyBuilder.java:627)
at com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition.getAccessor(BeanPropertyDefinition.java:190)
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder._getSetterInfo(POJOPropertyBuilder.java:265)
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.getMetadata(POJOPropertyBuilder.java:242)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._anyIndexed(POJOPropertiesCollector.java:1238)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._sortProperties(POJOPropertiesCollector.java:1140)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collectAll(POJOPropertiesCollector.java:470)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.getPropertyMap(POJOPropertiesCollector.java:386)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.getProperties(POJOPropertiesCollector.java:233)
at com.fasterxml.jackson.databind.introspect.BasicBeanDescription._properties(BasicBeanDescription.java:164)
at com.fasterxml.jackson.databind.introspect.BasicBeanDescription.findProperties(BasicBeanDescription.java:239)
at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory._findCreatorsFromProperties(BasicDeserializerFactory.java:328)
at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory._constructDefaultValueInstantiator(BasicDeserializerFactory.java:272)
at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findValueInstantiator(BasicDeserializerFactory.java:223)
at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:261)
... 12 more
```

* Dependency:
```

com.fasterxml.jackson.dataformat
jackson-dataformat-xml
2.11.1

```

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