AbstractJackson2HttpMessageConverter not resolving generic type for request body since 6.2.3 #34504
Description
Works in 6.2.2, fails in 6.2.3.
This may be related to the fix for #34386
package com.example.web; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @SpringBootApplication public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } /** * Works in Spring 6.2.2 but fails in Spring 6.2.3 * * <pre>POST http://localhost:8080/things/abc/concrete * Content-Type: application/json * * { * "thingId": "abc" * } * </pre> */ @RestController @RequestMapping("/things/{id}/concrete") public static class ImplementsGenericController implements InterfaceWithDefaultMethods<ImplementsGenericController.ConcreteType> { static class ConcreteType implements AbstractType { } } public interface InterfaceWithDefaultMethods<T extends ImplementsGenericController.AbstractType> { @PostMapping default String create( @PathVariable String id, @RequestBody T form) { if (form instanceof ImplementsGenericController.ConcreteType) { return "uuid-woz-ere"; } throw new UnsupportedOperationException(); } interface AbstractType { } } }Exception
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.example.web.InterfaceWithDefaultMethods$AbstractType` (no Creators, like default constructor, exist): abstract types either need to be mapped to concrete types, have custom deserializer, or contain additional type information at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 1] at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:67) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1888) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:414) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1375) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserialize(AbstractDeserializer.java:274) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:2125) ~[jackson-databind-2.18.2.jar:2.18.2] at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1501) ~[jackson-databind-2.18.2.jar:2.18.2] at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:398) ~[spring-web-6.2.3.jar:6.2.3] at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:357) ~[spring-web-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver.readWithMessageConverters(AbstractMessageConverterMethodArgumentResolver.java:204) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:176) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:150) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:122) ~[spring-web-6.2.3.jar:6.2.3] at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:226) ~[spring-web-6.2.3.jar:6.2.3] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:180) ~[spring-web-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:986) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:891) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1088) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:978) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.2.3.jar:6.2.3] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.2.3.jar:6.2.3]