package com.fasterxml.jackson.dataformat.xml.lists; import java.util.*; import org.junit.jupiter.api.Test; import com.fasterxml.jackson.annotation.*; import com.fasterxml.jackson.dataformat.xml.XmlMapper; import com.fasterxml.jackson.dataformat.xml.XmlTestUtil; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertNotNull; public class UnwrappedPolymorphicList490Test extends XmlTestUtil { @JsonTypeInfo( use = JsonTypeInfo.Id.NAME, + include = JsonTypeInfo.As.EXISTING_PROPERTY, property = "type") @JsonSubTypes({ @JsonSubTypes.Type(value = MyType490.class, name = "myType"), }) interface IMyType490 { } static class MyType490 implements IMyType490 { public final String stringValue; + public final String type = "myType"; public final Collection<String> typeNames; @JsonCreator public MyType490( @JsonProperty("stringValue") String stringValue, @JsonProperty("typeNames") Collection<String> typeNames) { this.stringValue = stringValue; this.typeNames = typeNames; } } // [dataformat-xml#490] @Test public void testPolymorphicUnwrappedList490() throws Exception { XmlMapper xmlMapper = XmlMapper.builder() .defaultUseWrapper(false).build(); List<String> typeNames = new ArrayList<>(); typeNames.add("type1"); typeNames.add("type2"); MyType490 input = new MyType490("hello", typeNames); String doc = xmlMapper.writeValueAsString(input); IMyType490 result = xmlMapper.readValue(doc, IMyType490.class); assertNotNull(result); assertEquals(MyType490.class, result.getClass()); MyType490 typedResult = (MyType490) result; assertEquals(Arrays.asList("type1", "type2"), typedResult.typeNames); } }