ClassCastException in RSocket auto-configuration when Jackson XML is present

[bxvs888]

See this case ,spring boot env
spring boot 2.2.0 M4 ,
spring framework 5.2.0.M3
JDK 11.0.3
this error :

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rSocketStrategies' defined in class path resource [org/springframework/boot/autoconfigure/rsocket/RSocketStrategiesAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.messaging.rsocket.RSocketStrategies]: Factory method 'rSocketStrategies' threw exception; nested exception is java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:638) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:618) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1326) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:870) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:748) [spring-boot-2.2.0.M4.jar:2.2.0.M4]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.2.0.M4.jar:2.2.0.M4]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-2.2.0.M4.jar:2.2.0.M4]
	at com.apsaras.platform.container.boot.PlatformJavaApplication.run(PlatformJavaApplication.java:69) [apsaras-bootstarp-3.3.5-SNAPSHOT.jar:3.3.5-SNAPSHOT]
	at com.apsaras.platform.container.boot.PlatformJavaApplication.start(PlatformJavaApplication.java:48) [apsaras-bootstarp-3.3.5-SNAPSHOT.jar:3.3.5-SNAPSHOT]
	at com.apsaras.platform.container.boot.PlatformJavaApplication.main(PlatformJavaApplication.java:90) [apsaras-bootstarp-3.3.5-SNAPSHOT.jar:3.3.5-SNAPSHOT]
	at TestExecutorApp.main(TestExecutorApp.java:10) [apsaras-job-executor-sample/:?]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.messaging.rsocket.RSocketStrategies]: Factory method 'rSocketStrategies' threw exception; nested exception is java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:633) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	... 19 more
Caused by: java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder$XmlObjectMapperInitializer.create(Jackson2ObjectMapperBuilder.java:866) ~[spring-web-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build(Jackson2ObjectMapperBuilder.java:628) ~[spring-web-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration$JacksonCborStrategyConfiguration.lambda$jacksonCborRSocketStrategyCustomizer$0(RSocketStrategiesAutoConfiguration.java:81) ~[spring-boot-autoconfigure-2.2.0.M4.jar:2.2.0.M4]
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration.lambda$rSocketStrategies$0(RSocketStrategiesAutoConfiguration.java:63) ~[spring-boot-autoconfigure-2.2.0.M4.jar:2.2.0.M4]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[?:?]
	at java.util.ArrayList.forEach(ArrayList.java:1540) ~[?:?]
	at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:395) ~[?:?]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[?:?]
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258) ~[?:?]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485) ~[?:?]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[?:?]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:?]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) ~[?:?]
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration.rSocketStrategies(RSocketStrategiesAutoConfiguration.java:63) ~[spring-boot-autoconfigure-2.2.0.M4.jar:2.2.0.M4]
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
	at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:633) ~[spring-beans-5.2.0.M3.jar:5.2.0.M3]
	... 19 more

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rSocketStrategies' defined in class path resource [org/springframework/boot/autoconfigure/rsocket/RSocketStrategiesAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.messaging.rsocket.RSocketStrategies]: Factory method 'rSocketStrategies' threw exception; nested exception is java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:638)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:618)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1326)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:870)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:748)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
	at com.apsaras.platform.container.boot.PlatformJavaApplication.run(PlatformJavaApplication.java:69)
	at com.apsaras.platform.container.boot.PlatformJavaApplication.start(PlatformJavaApplication.java:48)
	at com.apsaras.platform.container.boot.PlatformJavaApplication.main(PlatformJavaApplication.java:90)
	at TestExecutorApp.main(TestExecutorApp.java:10)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.messaging.rsocket.RSocketStrategies]: Factory method 'rSocketStrategies' threw exception; nested exception is java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:633)
	... 19 more
Caused by: java.lang.ClassCastException: class com.fasterxml.jackson.dataformat.cbor.CBORFactory cannot be cast to class com.fasterxml.jackson.dataformat.xml.XmlFactory (com.fasterxml.jackson.dataformat.cbor.CBORFactory and com.fasterxml.jackson.dataformat.xml.XmlFactory are in unnamed module of loader 'app')
	at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder$XmlObjectMapperInitializer.create(Jackson2ObjectMapperBuilder.java:866)
	at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build(Jackson2ObjectMapperBuilder.java:628)
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration$JacksonCborStrategyConfiguration.lambda$jacksonCborRSocketStrategyCustomizer$0(RSocketStrategiesAutoConfiguration.java:81)
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration.lambda$rSocketStrategies$0(RSocketStrategiesAutoConfiguration.java:63)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
	at java.base/java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:395)
	at java.base/java.util.stream.Sink$ChainedReference.end(Sink.java:258)
	at java.base/java.util.stream.Sink$ChainedReference.end(Sink.java:258)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at org.springframework.boot.autoconfigure.rsocket.RSocketStrategiesAutoConfiguration.rSocketStrategies(RSocketStrategiesAutoConfiguration.java:63)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	... 20 more

[wilkinsona]

Thanks for the report. I can reproduce this with dependencies on org.springframework.boot:spring-boot-starter-rsocket and com.fasterxml.jackson.dataformat:jackson-dataformat-xml. Can you please confirm that you have the same dependencies?