Closed
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]