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Tested with Jackson 2.9.9 and 2.10.3
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.10.3</version>
</dependency>
So when there is a new attribute at a string field, jackson somehow creates additional objects of the parent list instead of ignoring it.
Expected size of list of One ist 1, but it will be two. Each tag after the broken String causes creation of another 'One'.
package test.xml;
import com.ctc.wstx.stax.*;
import com.fasterxml.jackson.annotation.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.dataformat.xml.*;
import com.fasterxml.jackson.dataformat.xml.annotation.*;
import org.hamcrest.*;
import org.junit.Test;
import javax.xml.stream.XMLInputFactory;
import java.io.IOException;
import java.util.List;
public class XMLParserTest2 {
@Test
public void testXMLAnnotations() throws IOException {
String xml = "<many>\n"
+ " <one>\n"
+ " <value bar=\"baz\">foo</value>\n"
+ " <another></another>\n"
+ " </one>\n"
+ "</many>";
Many many = createXMLMapper().readValue(xml, Many.class);
MatcherAssert.assertThat(many.ones.size(), CoreMatchers.is(1));
}
private static XmlMapper createXMLMapper() {
XMLInputFactory input = new WstxInputFactory();
input.setProperty(XMLInputFactory.IS_VALIDATING, Boolean.FALSE);
input.setProperty(XMLInputFactory.SUPPORT_DTD, Boolean.FALSE);
XmlMapper xmlMapper = new XmlMapper(new XmlFactory(input, new WstxOutputFactory()));
xmlMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)
.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS)
.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE)
.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY)
.setSerializationInclusion(JsonInclude.Include.NON_EMPTY)
.disable(MapperFeature.AUTO_DETECT_GETTERS)
.disable(MapperFeature.AUTO_DETECT_SETTERS)
.enable(MapperFeature.AUTO_DETECT_FIELDS);
return xmlMapper;
}
@JacksonXmlRootElement(localName = "many")
private static class Many {
@JacksonXmlProperty(localName = "one")
@JacksonXmlElementWrapper(useWrapping = false)
List<One> ones;
}
private static class One {
@JacksonXmlProperty
String value;
@JacksonXmlProperty
String another;
}
}
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