title: "Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found" after Spring Boot Upgrade
body: <p>I get this exception message after upgrading Spring Boot from 2.1.5 to 2.2.2, when I try to start the Application.</p>
  
  <pre class="lang-none prettyprint-override"><code>Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'feignContract' defined in org.springframework.cloud.openfeign.FeignClientsConfiguration: Unsatisfied dependency expressed through method 'feignContract' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'feignConversionService' defined in org.springframework.cloud.openfeign.FeignClientsConfiguration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.format.support.FormattingConversionService]: Factory method 'feignConversionService' threw exception; nested exception is java.util.ServiceConfigurationError: com.fasterxml.jackson.databind.Module: Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found
      at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:539)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
      at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
      at org.springframework.cloud.context.named.NamedContextFactory.createContext(NamedContextFactory.java:136)
      at org.springframework.cloud.context.named.NamedContextFactory.getContext(NamedContextFactory.java:101)
      at org.springframework.cloud.context.named.NamedContextFactory.getInstance(NamedContextFactory.java:145)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.get(FeignClientFactoryBean.java:225)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.feign(FeignClientFactoryBean.java:86)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.getTarget(FeignClientFactoryBean.java:262)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:252)
      at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:171)
      ... 169 common frames omitted
  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'feignConversionService' defined in org.springframework.cloud.openfeign.FeignClientsConfiguration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.format.support.FormattingConversionService]: Factory method 'feignConversionService' threw exception; nested exception is java.util.ServiceConfigurationError: com.fasterxml.jackson.databind.Module: Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found
      at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656)
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
      at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
      at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
      at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
      at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
      ... 189 common frames omitted
  Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.format.support.FormattingConversionService]: Factory method 'feignConversionService' threw exception; nested exception is java.util.ServiceConfigurationError: com.fasterxml.jackson.databind.Module: Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found
      at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
      at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651)
      ... 203 common frames omitted
  Caused by: java.util.ServiceConfigurationError: com.fasterxml.jackson.databind.Module: Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found
      at java.util.ServiceLoader.fail(ServiceLoader.java:239)
      at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
      at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:372)
      at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
      at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
      at com.fasterxml.jackson.databind.ObjectMapper.findModules(ObjectMapper.java:1054)
      at com.fasterxml.jackson.databind.ObjectMapper.findModules(ObjectMapper.java:1038)
      at com.fasterxml.jackson.databind.ObjectMapper.findAndRegisterModules(ObjectMapper.java:1088)
      at at.porscheinformatik.retail.integration.api.formatter.DefaultDateTimeFormatter.&lt;init&gt;(DefaultDateTimeFormatter.java:24)
      at at.porscheinformatik.sbo.integration.impl.rest.feign.RestIntegrationFeignConfiguration.registerFormatters(RestIntegrationFeignConfiguration.java:30)
      at org.springframework.cloud.openfeign.FeignClientsConfiguration.feignConversionService(FeignClientsConfiguration.java:117)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
  </code></pre>
  
  <p>When I just upgrade to Spring Boot 2.2.1, this exception doesn't occur. </p>
  
  <p>After adding the dependency:</p>
  
  <pre><code>&lt;dependency&gt;
        &lt;groupId&gt;com.fasterxml.jackson.module&lt;/groupId&gt;
        &lt;artifactId&gt;jackson-module-jaxb-annotations&lt;/artifactId&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>it works for 2.2.2.</p>
  
  <p>So my question is, why do I suddenly need to manually add a dependency after this Spring Boot upgrade. </p>