Cannot subclass final class com.netflix.graphql.dgs.mvc.DgsRestSchemaJsonController

[nandychen]

I write a springmvc controller annotated with @RestController to accept http request from user-client, and provide a method annotated with @PostMapping and @RequestBody, and try to start the app in docker env but failed.

• springboot version: 2.6.2
• DGS-spring-boot-starter version: 3.10.2
• JDK: 1.8

Caused by: java.lang.IllegalArgumentException: Cannot subclass final class com.netflix.graphql.dgs.mvc.DgsRestSchemaJsonController
at org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:660) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.ClassLoaderAwareGeneratorStrategy.generate(ClassLoaderAwareGeneratorStrategy.java:57) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:358) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.3.14.jar!/:5.3.14]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_272]
at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) ~[spring-core-5.3.14.jar!/:5.3.14]
at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) ~[spring-aop-5.3.14.jar!/:5.3.14]
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206) ~[spring-aop-5.3.14.jar!/:5.3.14]
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.3.14.jar!/:5.3.14]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:478) ~[spring-aop-5.3.14.jar!/:5.3.14]
at

[berngp]

The DgsRestSchemaJsonController class is not meant to be extended. Could you describe your use case?