title: Spring Boot - MockMVC Error creating bean
body: <p>Been trying to figure this out all day, wondered if someone could help and shed some light. Any help is much appreciated.</p>
  
  <p>I'm really unsure as to why this is happening, I thought that using <code>@AutoConfigureMockMvc</code> would solve the issue</p>
  
  <p>Error: </p>
  
  <pre><code>   java.lang.IllegalStateException: Failed to load ApplicationContext
  
      at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
      at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
      at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189)
      at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131)
      at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)
      at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
      at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
      at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
      at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
      at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
      at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
      at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
      at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
      at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
      at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
      at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
      at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
      at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
      at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mockMvc' defined in class path resource [org/springframework/boot/test/autoconfigure/web/servlet/MockMvcAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.test.web.servlet.MockMvc]: Factory method 'mockMvc' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerAdapter' defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Factory method 'requestMappingHandlerAdapter' threw exception; nested exception is java.lang.NoSuchFieldError: defaultReader
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
      at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
      at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
      at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
      at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
      at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
      at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
      ... 24 more
  Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.test.web.servlet.MockMvc]: Factory method 'mockMvc' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerAdapter' defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Factory method 'requestMappingHandlerAdapter' threw exception; nested exception is java.lang.NoSuchFieldError: defaultReader
      at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
      ... 41 more
  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerAdapter' defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Factory method 'requestMappingHandlerAdapter' threw exception; nested exception is java.lang.NoSuchFieldError: defaultReader
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
      at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:519)
      at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1197)
      at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:310)
      at org.springframework.web.servlet.DispatcherServlet.initHandlerAdapters(DispatcherServlet.java:610)
      at org.springframework.web.servlet.DispatcherServlet.initStrategies(DispatcherServlet.java:488)
      at org.springframework.web.servlet.DispatcherServlet.onRefresh(DispatcherServlet.java:476)
      at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:560)
      at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494)
      at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138)
      at javax.servlet.GenericServlet.init(GenericServlet.java:158)
      at org.springframework.test.web.servlet.MockMvcBuilderSupport.createMockMvc(MockMvcBuilderSupport.java:69)
      at org.springframework.test.web.servlet.setup.AbstractMockMvcBuilder.build(AbstractMockMvcBuilder.java:158)
      at org.springframework.boot.test.autoconfigure.web.servlet.MockMvcAutoConfiguration.mockMvc(MockMvcAutoConfiguration.java:85)
      at org.springframework.boot.test.autoconfigure.web.servlet.MockMvcAutoConfiguration$$EnhancerBySpringCGLIB$$f3b3c23b.CGLIB$mockMvc$2(&lt;generated&gt;)
      at org.springframework.boot.test.autoconfigure.web.servlet.MockMvcAutoConfiguration$$EnhancerBySpringCGLIB$$f3b3c23b$$FastClassBySpringCGLIB$$e4380fbd.invoke(&lt;generated&gt;)
      at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
      at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358)
      at org.springframework.boot.test.autoconfigure.web.servlet.MockMvcAutoConfiguration$$EnhancerBySpringCGLIB$$f3b3c23b.mockMvc(&lt;generated&gt;)
      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:162)
      ... 42 more
  Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Factory method 'requestMappingHandlerAdapter' threw exception; nested exception is java.lang.NoSuchFieldError: defaultReader
      at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
      at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
      ... 73 more
  Caused by: java.lang.NoSuchFieldError: defaultReader
      at com.jayway.jsonpath.spi.json.JsonSmartJsonProvider.&lt;init&gt;(JsonSmartJsonProvider.java:39)
      at com.jayway.jsonpath.internal.DefaultsImpl.jsonProvider(DefaultsImpl.java:21)
      at com.jayway.jsonpath.Configuration$ConfigurationBuilder.build(Configuration.java:231)
      at org.springframework.data.web.JsonProjectingMethodInterceptorFactory.&lt;init&gt;(JsonProjectingMethodInterceptorFactory.java:71)
      at org.springframework.data.web.ProjectingJackson2HttpMessageConverter.initProjectionFactory(ProjectingJackson2HttpMessageConverter.java:85)
      at org.springframework.data.web.ProjectingJackson2HttpMessageConverter.&lt;init&gt;(ProjectingJackson2HttpMessageConverter.java:70)
      at org.springframework.data.web.config.SpringDataWebConfiguration.extendMessageConverters(SpringDataWebConfiguration.java:125)
      at org.springframework.web.servlet.config.annotation.WebMvcConfigurerComposite.extendMessageConverters(WebMvcConfigurerComposite.java:143)
      at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration.extendMessageConverters(DelegatingWebMvcConfiguration.java:122)
      at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.getMessageConverters(WebMvcConfigurationSupport.java:718)
      at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.requestMappingHandlerAdapter(WebMvcConfigurationSupport.java:525)
      at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration.requestMappingHandlerAdapter(WebMvcAutoConfiguration.java:376)
      at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$8c7ea907.CGLIB$requestMappingHandlerAdapter$3(&lt;generated&gt;)
      at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$8c7ea907$$FastClassBySpringCGLIB$$e51d818d.invoke(&lt;generated&gt;)
      at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
      at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358)
      at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$8c7ea907.requestMappingHandlerAdapter(&lt;generated&gt;)
      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:162)
      ... 74 more
  </code></pre>
  
  <p>Unit Test:</p>
  
  <pre><code>@RunWith(SpringRunner.class)
  @AutoConfigureMockMvc
  @SpringBootTest
  public class ClaimDocumentControllerTest {
  
      @Autowired
      private MockMvc mockMvc;
  
      @Autowired
      private ObjectMapper objectMapper;
  
      @MockBean
      private DocumentProductionService service;
  
      @Test
      public void testGenerateClaimDocument() throws Exception {
          final ClaimRequest request = constructRequest();
          String input = objectMapper.writeValueAsString(request);
  
          this.mockMvc.perform(post("/redundency/generateClaimDocument")
                          .contentType(MediaType.APPLICATION_JSON).content(input))
                      .andDo(print())
                      .andExpect(status().isOk());
  
          verify(service, times(1)).generateClaimDocument(request);
  
      }
  }
  </code></pre>
  
  <p>Configuration: </p>
  
  <pre><code>@Configuration
  public class ApplicationConfiguration {
  
      @Bean
      public Clock clock() {
          return Clock.systemDefaultZone();
      }
  
      @Bean
      public RestTemplate restTemplate() {
          return new RestTemplate();
      }
  
      @Bean
      public ObjectMapper objectMapper() { return new ObjectMapper(); }
  
  }
  </code></pre>
  
  <p>Gradle.Build Dependencies:</p>
  
  <pre><code>repositories {
      mavenCentral()
  }
  
  dependencies{
      compile group: 'org.springframework.boot', name: 'spring-boot-starter-actuator', version: '1.5.2.RELEASE'
      compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '1.5.2.RELEASE'
      compile 'commons-lang:commons-lang:2.6'
      compile 'io.springfox:springfox-swagger2:2.9.2'
      compile 'io.springfox:springfox-swagger-ui:2.9.2'
  
      // Database
      compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '1.5.2.RELEASE'
      compile group: 'javax.transaction', name: 'jta', version: '1.1'
      compile group: 'com.microsoft.sqlserver', name: 'mssql-jdbc', version: '6.1.0.jre8'
      compile group: 'org.hibernate', name: 'hibernate-java8', version: '5.0.12.Final'
      //compile "org.flywaydb:flyway-core:5.1.4"
  
      // Dependencies for tests
      testCompile(group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: '1.5.2.RELEASE')
  }
  </code></pre>