Graphql V13.0.0 issue - Failed to introspect Class [graphql.kickstart.autoconfigure.editor.graphiql.GraphiQLAutoConfiguration]

[kumaritian]

After upgrading to V13.0.0 from V12.0.0, I am getting below error during application start up but with V12.0.0 there is no issue as application is started successfully.

          <dependency>
		<groupId>com.graphql-java-kickstart</groupId>
		<artifactId>graphql-spring-boot-starter</artifactId>
		<version>13.0.0</version>
	</dependency>
	<dependency>
		<groupId>com.graphql-java-kickstart</groupId>
		<artifactId>graphql-java-tools</artifactId>
		<version>13.0.0</version>
	</dependency>

Note:

1. With <version>12.0.0</version> the application is started successfully.
2. Spring boot version 2.7.2
3. Already reported this issue [[in ava.lang.IllegalStateException: Failed to introspect Class [graphql.kickstart.autoconfigure.editor.graphiql.GraphiQLAutoConfiguration]](https://github.com/CORS functionality cannot be disabled with property 'graphql.servlet.cors-enabled' #763)](CORS functionality cannot be disabled with property 'graphql.servlet.cors-enabled' #763 (comment))

Error
java.lang.IllegalStateException: Failed to introspect Class [graphql.kickstart.autoconfigure.editor.graphiql.GraphiQLAutoConfiguration] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@22d8cfe0]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:485) ~[spring-core-5.3.22.jar:5.3.22]
.....
....
....
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.2.jar:2.7.2]
at com.mt.amp.pot.service.aggregator.ServiceAggregatorApplication.main(ServiceAggregatorApplication.java:22) ~[classes/:na]
Caused by: java.lang.NoClassDefFoundError: org/springframework/web/reactive/function/server/RouterFunction
at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3402) ~[na:na]
at java.base/java.lang.Class.getDeclaredMethods(Class.java:2504) ~[na:na]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:467) ~[spring-core-5.3.22.jar:5.3.22]
... 21 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.web.reactive.function.server.RouterFunction
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[na:na]
... 25 common frames omitted

Dependencies

[oliemansm]

Can you remove the spring-webflux dependency entirely and try again. The stacktrace shows it complains about not being able to load the RouterFunction class which is provided by that dependency. However you're overriding that dependency and marking it to be only used in test scope, making it unavailable when trying to start the application.

[kumaritian]

@oliemansm : Thanks for your support. After removing spring-webflux the issue got resolved.