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Spring Rest MultiModule Project has ClassCastException in requestMappingHandlerMapping()

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I am facing following issue. I have a multi module project for which I now want to design a Rest-Module for using Spring-Hateoas.

The underlaying modules works as expected. The modules are organized like follows:

  • app
    • rest
    • business
    • backend

All modules are build by spring-boot in current version 1.1.9.RELEASE.

When I start the Integration-Test as well runable Application class I get the stacktrace you find below. That stacktrace just come when I integrate the business module in application class of rest module.

====

TESTCLASS

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = ApplicationRest.class)
@WebAppConfiguration
@ActiveProfiles("localhost")
public class ApplicationRestTest {

    @Test
    public void contextLoads() {
    }

}

===

CONFIGURATION CLASS OF REST MODULE => RUNNING THAT CLASS ONLY WORKS WHEN COMMENTING @IMPORT!!!

@Configuration
@ComponentScan
@EnableAutoConfiguration
@Import(ApplicationBusiness.class) // WORKS WHEN COMMENTING THAT LINE!!!
@PropertySource({ "classpath:/config/application-localhost.properties" })
public class ApplicationRest {

    public static void main(final String[] args) {
        SpringApplication.run(ApplicationRest.class, args);
    }
}

===

CONFIGURATION OF BUSINESS MODULE => RUNNING THAT CLASS WORKS!!!

@Configuration
@ComponentScan
@Import(Application.class)
@PropertySource({ "classpath:/config/application-localhost.properties" })
public class ApplicationBusiness {
    public static void main(final String[] args) {
        SpringApplication.run(ApplicationBusiness.class, args);
    }
}

===

CONFIGURATION OF BACKEND MODULE => RUNNING THAT CLASS WORKS

@Configuration
@ComponentScan
@EnableAutoConfiguration
@EnableJpaRepositories
@ImportResource("classpath*:META-INF/spring/applicationContext-*.xml")
public class Application {
    public static void main(final String[] args) {
        final ConfigurableApplicationContext context =    SpringApplication.run(Application.class, args);

        final ContractService service = context.getBean(ContractService.class);
        service.countAllContracts();

        context.close();
    }
}

====

STACKTRACE

CONSOLE OUTPUT OF MODULES BACKEND AND BUSINESS ARE OKAY

....

CONSOLE OUTPUT REST MODULE STARTS HERE ...

2014-11-15 13:39:21.125  INFO 7988 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2014-11-15 13:39:21.346  WARN 7988 --- [           main] o.s.w.c.s.GenericWebApplicationContext   : Exception encountered during context initialization - cancelling refresh attempt

2014-11-15 13:20:13.722 ERROR 3472 --- [           main] o.s.test.context.TestContextManager      : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@29ae2517] to prepare test instance [at.compax.bbsng.app.rest.ApplicationRestTest@7a78d2aa]

java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:103)
at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:98)
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:161)
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:101)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:331)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:213)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:290)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:292)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:233)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:87)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:176)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/web/servlet/config/annotation/DelegatingWebMvcConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.requestMappingHandlerMapping()] threw exception; nested exception is java.lang.ClassCastException: com.sun.proxy.$Proxy130 cannot be cast to org.springframework.format.support.FormattingConversionService
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:990)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:107)
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:69)
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:95)
... 25 common frames omitted
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.requestMappingHandlerMapping()] threw exception; nested exception is java.lang.ClassCastException: com.sun.proxy.$Proxy130 cannot be cast to org.springframework.format.support.FormattingConversionService
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:188)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:586)
... 41 common frames omitted
Caused by: java.lang.ClassCastException: com.sun.proxy.$Proxy130 cannot be cast to org.springframework.format.support.FormattingConversionService
at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration$$EnhancerBySpringCGLIB$$9d0e5a2e.mvcConversionService(<generated>)
at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.getInterceptors(WebMvcConfigurationSupport.java:230)
at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.requestMappingHandlerMapping(WebMvcConfigurationSupport.java:197)
at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration$$EnhancerBySpringCGLIB$$9d0e5a2e.CGLIB$requestMappingHandlerMapping$17(<generated>)
at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration$$EnhancerBySpringCGLIB$$9d0e5a2e$$FastClassBySpringCGLIB$$c90faea7.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:312)
at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration$$EnhancerBySpringCGLIB$$9d0e5a2e.requestMappingHandlerMapping(<generated>)
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:483)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
... 42 common frames omitted

============

That Issues happens when I add the following dependency to the classpath:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

When removing it, then it does not complain.

===============

Starting in Debug-Mode prints out following classpath dependencies, maybe that helps:

2014-11-15 16:18:48.758  INFO 8896 --- [           main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/C:/Development/Projekte/bbsng/trunk/app/rest/target/classes/, file:/C:/Development/Projekte/bbsng/trunk/app/business/target/classes/, file:/C:/Development/Projekte/bbsng/trunk/app/backend/target/classes/, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-data-jpa/1.1.9.RELEASE/spring-boot-starter-data-jpa-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-aop/1.1.9.RELEASE/spring-boot-starter-aop-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/aspectj/aspectjrt/1.8.4/aspectjrt-1.8.4.jar, file:/C:/Users/hegnerM/.m2/repository/org/aspectj/aspectjweaver/1.8.4/aspectjweaver-1.8.4.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-jdbc/1.1.9.RELEASE/spring-boot-starter-jdbc-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-jdbc/4.0.8.RELEASE/spring-jdbc-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/tomcat-jdbc/7.0.56/tomcat-jdbc-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/tomcat-juli/7.0.56/tomcat-juli-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-tx/4.0.8.RELEASE/spring-tx-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-orm/4.0.8.RELEASE/spring-orm-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/data/spring-data-jpa/1.6.4.RELEASE/spring-data-jpa-1.6.4.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/data/spring-data-commons/1.8.4.RELEASE/spring-data-commons-1.8.4.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-aspects/4.0.8.RELEASE/spring-aspects-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/postgresql/postgresql/9.3-1102-jdbc41/postgresql-9.3-1102-jdbc41.jar, file:/C:/Users/hegnerM/.m2/repository/org/hsqldb/hsqldb/2.3.2/hsqldb-2.3.2.jar, file:/C:/Users/hegnerM/.m2/repository/commons-collections/commons-collections/3.2.1/commons-collections-3.2.1.jar, file:/C:/Users/hegnerM/.m2/repository/commons-dbcp/commons-dbcp/1.4/commons-dbcp-1.4.jar, file:/C:/Users/hegnerM/.m2/repository/commons-pool/commons-pool/1.6/commons-pool-1.6.jar, file:/C:/Development/Projekte/bbsng/trunk/app/domain/target/classes/, file:/C:/Users/hegnerM/.m2/repository/org/hibernate/hibernate-entitymanager/4.3.6.Final/hibernate-entitymanager-4.3.6.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/jboss/logging/jboss-logging-annotations/1.2.0.Beta1/jboss-logging-annotations-1.2.0.Beta1.jar, file:/C:/Users/hegnerM/.m2/repository/org/hibernate/hibernate-core/4.3.6.Final/hibernate-core-4.3.6.Final.jar, file:/C:/Users/hegnerM/.m2/repository/antlr/antlr/2.7.7/antlr-2.7.7.jar, file:/C:/Users/hegnerM/.m2/repository/org/jboss/jandex/1.1.0.Final/jandex-1.1.0.Final.jar, file:/C:/Users/hegnerM/.m2/repository/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar, file:/C:/Users/hegnerM/.m2/repository/xml-apis/xml-apis/1.0.b2/xml-apis-1.0.b2.jar, file:/C:/Users/hegnerM/.m2/repository/org/hibernate/common/hibernate-commons-annotations/4.0.5.Final/hibernate-commons-annotations-4.0.5.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/hibernate/javax/persistence/hibernate-jpa-2.1-api/1.0.0.Final/hibernate-jpa-2.1-api-1.0.0.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/jboss/spec/javax/transaction/jboss-transaction-api_1.2_spec/1.0.0.Final/jboss-transaction-api_1.2_spec-1.0.0.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/javassist/javassist/3.18.1-GA/javassist-3.18.1-GA.jar, file:/C:/Users/hegnerM/.m2/repository/com/mysema/querydsl/querydsl-jpa/3.4.3/querydsl-jpa-3.4.3.jar, file:/C:/Users/hegnerM/.m2/repository/com/mysema/querydsl/querydsl-core/3.4.3/querydsl-core-3.4.3.jar, file:/C:/Users/hegnerM/.m2/repository/com/google/guava/guava/14.0/guava-14.0.jar, file:/C:/Users/hegnerM/.m2/repository/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar, file:/C:/Users/hegnerM/.m2/repository/com/mysema/commons/mysema-commons-lang/0.2.4/mysema-commons-lang-0.2.4.jar, file:/C:/Users/hegnerM/.m2/repository/com/infradna/tool/bridge-method-annotation/1.13/bridge-method-annotation-1.13.jar, file:/C:/Development/Projekte/bbsng/trunk/app/log/target/classes/, file:/C:/Users/hegnerM/.m2/repository/org/aspectj/aspectjtools/1.8.4/aspectjtools-1.8.4.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter/1.1.9.RELEASE/spring-boot-starter-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot/1.1.9.RELEASE/spring-boot-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.1.9.RELEASE/spring-boot-autoconfigure-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-logging/1.1.9.RELEASE/spring-boot-starter-logging-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.7/jcl-over-slf4j-1.7.7.jar, file:/C:/Users/hegnerM/.m2/repository/org/slf4j/jul-to-slf4j/1.7.7/jul-to-slf4j-1.7.7.jar, file:/C:/Users/hegnerM/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.7/log4j-over-slf4j-1.7.7.jar, file:/C:/Users/hegnerM/.m2/repository/ch/qos/logback/logback-classic/1.1.2/logback-classic-1.1.2.jar, file:/C:/Users/hegnerM/.m2/repository/ch/qos/logback/logback-core/1.1.2/logback-core-1.1.2.jar, file:/C:/Users/hegnerM/.m2/repository/org/yaml/snakeyaml/1.13/snakeyaml-1.13.jar, file:/C:/Users/hegnerM/.m2/repository/org/projectlombok/lombok/1.14.8/lombok-1.14.8.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/commons/commons-collections4/4.0/commons-collections4-4.0.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar, file:/C:/Users/hegnerM/.m2/repository/joda-time/joda-time/2.3/joda-time-2.3.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-actuator/1.1.9.RELEASE/spring-boot-starter-actuator-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-actuator/1.1.9.RELEASE/spring-boot-actuator-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-core/4.0.8.RELEASE/spring-core-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-web/1.1.9.RELEASE/spring-boot-starter-web-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/1.1.9.RELEASE/spring-boot-starter-tomcat-1.1.9.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/7.0.56/tomcat-embed-core-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/7.0.56/tomcat-embed-el-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/embed/tomcat-embed-logging-juli/7.0.56/tomcat-embed-logging-juli-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/7.0.56/tomcat-embed-websocket-7.0.56.jar, file:/C:/Users/hegnerM/.m2/repository/org/hibernate/hibernate-validator/5.0.3.Final/hibernate-validator-5.0.3.Final.jar, file:/C:/Users/hegnerM/.m2/repository/org/jboss/logging/jboss-logging/3.1.1.GA/jboss-logging-3.1.1.GA.jar, file:/C:/Users/hegnerM/.m2/repository/com/fasterxml/classmate/1.0.0/classmate-1.0.0.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-web/4.0.8.RELEASE/spring-web-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-webmvc/4.0.8.RELEASE/spring-webmvc-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-expression/4.0.8.RELEASE/spring-expression-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/hateoas/spring-hateoas/0.16.0.RELEASE/spring-hateoas-0.16.0.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-aop/4.0.8.RELEASE/spring-aop-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-beans/4.0.8.RELEASE/spring-beans-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/spring-context/4.0.8.RELEASE/spring-context-4.0.8.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/org/objenesis/objenesis/2.1/objenesis-2.1.jar, file:/C:/Users/hegnerM/.m2/repository/org/slf4j/slf4j-api/1.7.7/slf4j-api-1.7.7.jar, file:/C:/Users/hegnerM/.m2/repository/org/springframework/plugin/spring-plugin-core/1.1.0.RELEASE/spring-plugin-core-1.1.0.RELEASE.jar, file:/C:/Users/hegnerM/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.3.4/jackson-databind-2.3.4.jar, file:/C:/Users/hegnerM/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.3.4/jackson-annotations-2.3.4.jar, file:/C:/Users/hegnerM/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.3.4/jackson-core-2.3.4.jar, file:/C:/Users/hegnerM/.m2/repository/com/jayway/jsonpath/json-path/0.9.1/json-path-0.9.1.jar, file:/C:/Users/hegnerM/.m2/repository/net/minidev/json-smart/1.2/json-smart-1.2.jar]
rest spring-boot classcastexception multi-module
Original Q&A
2

There are 2 best solutions below

1
On

Okay I got the problem, but I really don't know why this is a problem or is it a spring bug.

I am using a module for Business-Method Logging, what I have centralized as aspect. This works with the modules backend and business, it just start that exception behavior when I use spring-mvc with spring-boot.

As you seen above my module backend has annotation @ImportResource("classpath*:META-INF/spring/applicationContext-*.xml"), so that spring can find the xml-config file what includes following (mentioned I use that xml-file for years to log service logger without any problems):

<bean id="serviceLogger" class="at.compax.bbsng.app.log.service.ServiceLogger" />

<aop:aspectj-autoproxy>
    <aop:include name="serviceLogger" />
</aop:aspectj-autoproxy>

<!-- Trace all service methods -->
<bean id="debugInterceptor" class="org.springframework.aop.interceptor.DebugInterceptor">
    <property name="useDynamicLogger" value="true" />
    <property name="hideProxyClassNames" value="true" />
</bean>

<!-- Time-Logger -->
<bean id="performanceMonitorInterceptor"
    class="org.springframework.aop.interceptor.PerformanceMonitorInterceptor">
    <property name="useDynamicLogger" value="true" />
</bean>

<aop:config>
    <aop:pointcut id="daoPointcut" expression="execution(* *..*Repository+.*(..))" />
    <aop:advisor advice-ref="debugInterceptor" pointcut-ref="daoPointcut" />
</aop:config>

<aop:config>
    <aop:pointcut id="servicePointcut" expression="execution(* *..*Service+.*(..))" />
    <aop:advisor advice-ref="performanceMonitorInterceptor"
        pointcut-ref="servicePointcut" />
</aop:config>

I don't know why spring-boot-mvc has problem with that and why. Does it have problem with annotation for importing xml-files or does it have problems with aspects. But I guess I will find out and I will report.

If someone knows what is the problem, please don't hesiate to post.

=======

As mentioned spring-web-starter seems to have problem when using aspect. But thats really stupid, it always worked when doing multi-module-project without spring-boot. If nobody knows answer on it, I guess it is a spring bug and I will create jira ticket. Ideas are welcome....

0
On

I regenerated serialVersionUID after changed of Class properties, and that is works for me.

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