quarkus 3.9.1 federation with interfaces is broken

[robp94]

If an interface has a key annotation, quarkus fails to start. This worked fine with quarkus 3.8.3

Reproducer https://github.com/robp94/code-with-quarkus-federation-error

2024-03-28 15:44:32,782 ERROR [io.qua.run.boo.StartupActionImpl] (Quarkus Main Thread) Error running Quarkus: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:118)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at io.quarkus.runner.bootstrap.StartupActionImpl$1.run(StartupActionImpl.java:113)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.ExceptionInInitializerError
	at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
	at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160)
	at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:300)
	at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:103)
	at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200)
	at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:70)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:44)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:124)
	at io.quarkus.runner.GeneratedMain.main(Unknown Source)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	... 3 more
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.<clinit>(Unknown Source)
	... 16 more
Caused by: java.lang.ClassCastException: class java.util.LinkedHashMap cannot be cast to class graphql.language.StringValue (java.util.LinkedHashMap is in module java.base of loader 'bootstrap'; graphql.language.StringValue is in unnamed module of loader io.quarkus.bootstrap.classloading.QuarkusClassLoader @6e2c9341)
	at com.apollographql.federation.graphqljava.SchemaTransformer.lambda$retrieveFieldSets$15(SchemaTransformer.java:197)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.Collections$2.tryAdvance(Collections.java:5073)
	at java.base/java.util.Collections$2.forEachRemaining(Collections.java:5081)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
	at com.apollographql.federation.graphqljava.SchemaTransformer.retrieveFieldSets(SchemaTransformer.java:199)
	at com.apollographql.federation.graphqljava.SchemaTransformer.lambda$getFederatedEntities$6(SchemaTransformer.java:153)
	at graphql.com.google.common.collect.ImmutableList.forEach(ImmutableList.java:422)
	at com.apollographql.federation.graphqljava.SchemaTransformer.lambda$getFederatedEntities$7(SchemaTransformer.java:149)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:1024)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
	at com.apollographql.federation.graphqljava.SchemaTransformer.getFederatedEntities(SchemaTransformer.java:146)
	at com.apollographql.federation.graphqljava.SchemaTransformer.build(SchemaTransformer.java:89)
	at io.smallrye.graphql.bootstrap.Bootstrap.generateGraphQLSchema(Bootstrap.java:221)
	at io.smallrye.graphql.bootstrap.Bootstrap.bootstrap(Bootstrap.java:128)
	at io.smallrye.graphql.cdi.producer.GraphQLProducer.initialize(GraphQLProducer.java:52)
	at io.smallrye.graphql.cdi.producer.GraphQLProducer.initialize(GraphQLProducer.java:42)
	at io.smallrye.graphql.cdi.producer.GraphQLProducer.initialize(GraphQLProducer.java:32)
	at io.smallrye.graphql.cdi.producer.GraphQLProducer.initialize(GraphQLProducer.java:27)
	at io.smallrye.graphql.cdi.producer.GraphQLProducer_ClientProxy.initialize(Unknown Source)
	at io.quarkus.smallrye.graphql.runtime.SmallRyeGraphQLRecorder.createExecutionService(SmallRyeGraphQLRecorder.java:36)
	at io.quarkus.deployment.steps.SmallRyeGraphQLProcessor$buildExecutionService1691419614.deploy_2(Unknown Source)
	at io.quarkus.deployment.steps.SmallRyeGraphQLProcessor$buildExecutionService1691419614.deploy(Unknown Source)
	... 17 more