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在Maven/Springboot项目中运行测试时出现MojoFailureException（NoClassDefFound）

分类: 技术问答 • 2022-06-16 12:46:36
问题描述：

在Maven/Springboot项目中尝试运行（集成）测试时出现错误。 我正在尝试初始化对象上的initializationError >> NoClassDefFound。在Maven/Springboot项目中运行测试时出现MojoFailureException（NoClassDefFound）

错误日志：

Running ip2.TestSessionsIT 
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.002 sec <<< FAILURE! - in ip2.TestSessionsIT 
initializationError(ip2.TestSessionsIT) Time elapsed: 0.002 sec <<< ERROR! 
java.lang.NoClassDefFoundError: Lip2/services/interfaces/SessionService; 
Caused by: java.lang.ClassNotFoundException: ip2.services.interfaces.SessionService 

17:20:39.089 [Thread-0] INFO org.springframework.context.support.GenericApplicationContext - Closing [email protected]a50a4c: startup date [Fri Feb 24 17:20:33 CET 2017]; root of context hierarchy 
17:20:39.090 [Thread-0] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'lifecycleProcessor' 
17:20:39.090 [Thread-0] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.s[email protected]525f1e4e: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,org.springframework.boot.test.mock.mockito.MockitoPostProcessor$SpyPostProcessor,org.springframework.boot.test.mock.mockito.MockitoPostProcessor]; root of factory hierarchy 

Results : 

Tests in error: 
    TestSessionsIT.initializationError » NoClassDefFound Lip2/services/interfaces/... 

Tests run: 3, Failures: 0, Errors: 1, Skipped: 0 

[INFO] 
[INFO] --- maven-failsafe-plugin:2.19.1:integration-test (integration-test) @ revCan --- 
[INFO] Skipping execution of surefire because it has already been run for this configuration 
[INFO] 
[INFO] --- spring-boot-maven-plugin:1.5.1.RELEASE:stop (post-integration-test) @ revCan --- 
[INFO] Stopping application... 
2017-02-24 17:20:39.518 INFO 23721 --- [   main] inMXBeanRegistrar$SpringApplicationAdmin : Application shutdown requested. 
2017-02-24 17:20:39.518 INFO 23721 --- [   main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot[email protected]6a156a6a: startup date [Fri Feb 24 17:20:23 CET 2017]; root of context hierarchy 
2017-02-24 17:20:39.521 INFO 23721 --- [   main] o.s.c.support.DefaultLifecycleProcessor : Stopping beans in phase 0 
2017-02-24 17:20:39.524 INFO 23721 --- [   main] o.s.j.e.a.AnnotationMBeanExporter  : Unregistering JMX-exposed beans on shutdown 
2017-02-24 17:20:39.529 INFO 23721 --- [   main] org.mongodb.driver.connection   : Closed connection [connectionId{localValue:2, serverValue:69518}] to ds153689.mlab.com:53689 because the pool has been closed. 
[INFO] 
[INFO] --- maven-failsafe-plugin:2.19.1:verify (default) @ revCan --- 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD FAILURE 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 42.439 s 
[INFO] Finished at: 2017-02-24T17:20:39+01:00 
[INFO] Final Memory: 47M/344M 
[INFO] ------------------------------------------------------------------------ 
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-failsafe-plugin:2.19.1:verify (default) on project revCan: There are test failures. 
[ERROR] 
[ERROR] Please refer to /Users/robbevanwinckel/Desktop/team5years/team5yearswebsite/target/failsafe-reports for the individual test results. 
[ERROR] -> [Help 1] 
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. 
[ERROR] Re-run Maven using the -X switch to enable full debug logging. 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles: 
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

我的pom.xml：

<parent> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-parent</artifactId> 
    <version>1.5.1.RELEASE</version> 
    <relativePath/> <!-- lookup parent from repository --> 
</parent> 

<properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 
    <java.version>1.8</java.version> 
</properties> 

<dependencies> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-web</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-actuator</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-data-mongodb</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-test</artifactId> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-test</artifactId> 
     <version>4.3.6.RELEASE</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>com.jayway.restassured</groupId> 
     <artifactId>rest-assured</artifactId> 
     <version>2.8.0</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>com.google.code.gson</groupId> 
     <artifactId>gson</artifactId> 
     <version>2.2.4</version> 
    </dependency> 
    <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>4.12</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.data</groupId> 
     <artifactId>spring-data-mongodb</artifactId> 
     <version>RELEASE</version> 
     <scope>compile</scope> 
    </dependency> 
</dependencies> 

<build> 
    <plugins> 
     <plugin> 
      <groupId>org.apache.maven.plugins</groupId> 
      <artifactId>maven-failsafe-plugin</artifactId> 
      <version>2.19.1</version> 
      <executions> 
       <execution> 
        <id>integration-test</id> 
        <goals><goal>integration-test</goal></goals> 
       </execution> 
       <execution> 
        <id>verify</id> 
        <phase>verify</phase> 
        <goals><goal>verify</goal></goals> 
       </execution> 
      </executions> 
     </plugin> 
     <plugin> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-maven-plugin</artifactId> 
      <executions> 
       <execution> 
        <id>pre-integration-test</id> 
        <goals><goal>start</goal></goals> 
       </execution> 
       <execution> 
        <id>post-integration-test</id> 
        <goals><goal>stop</goal></goals> 
       </execution> 
      </executions> 
     </plugin> 
    </plugins> 
</build>

我的测试类：

@RunWith(SpringJUnit4ClassRunner.class) 
@ContextConfiguration("testcontext.xml") 
public class TestSessionsIT { 

    @Autowired 
    private SessionService sessionService; 

    @Test 
    public void testGetSessions() {} 
}

文件夹结构：

  • SRC
    • 主
      • 的java
        • IP2
          • 类/服务/控制器
    • 测试
      • 的java
        • IP2
          • testclasses
      • 资源
        • IP2
          • testcontext.xml

我的服务注解与注解@Service。在testcontext.xml我有<context:component-scan base-package="ip2"/>

不知道如何解决这个错误。任何帮助将非常感激！

答

终于自己找到了答案。

首先，我没有找到问题的根源，所以标题现在颇具误导性。问题是Maven-failsafe-plugin没有找到spring boot类。解决方案是降级到版本2.18.1。

<plugin> 
    <groupId>org.apache.maven.plugins</groupId> 
    <artifactId>maven-failsafe-plugin</artifactId> 
    <version>2.18.1</version> 
</plugin>

https://github.com/spring-projects/spring-boot/issues/6254

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