使用Maven插件测试中的org.apache.maven.repository.RepositorySystem进行组件查找异常

问题描述

我正在尝试使用 maven-plugin-testing-harness 版本2.1以及以下测试用例：

  public class FooTest extends AbstractMojoTestCase {
 @Override 
 protected void setUp（）throws Exception {
 super.setUp（）; 
} 
 public void testSomething（）throws Exception {
 // todo 
} 
} 
  

测试在 setUp（）调用失败：

  org.codehaus.plexus.component.repository.exception.ComponentLookupException：java.util.NoSuchElementException 
 role：org.apache.maven.repository.RepositorySystem 
 roleHint： 
 at org.codehaus.plexus.DefaultPlexusContainer.lookup（DefaultPlexusContainer.java:257）
 at org.codehaus.plexus.DefaultPlexusContainer.lookup（DefaultPlexusContainer.java:245）
 at org.codehaus .plexus.DefaultPlexusContainer.lookup（DefaultPlexusContainer.java:239）
 at org.codehaus.plexus.PlexusTestCase.lookup（PlexusTestCase.java:206）
 at org.apache.maven.plugin.testing.AbstractMojoTestCase .setUp（AbstractMojoTestCase.java:118）foo.FooTest.setUp（$ F $）
 
 $ b 
我在 pom.xml中的这些依赖项：
 < dependency> 
< groupId> org.apache.maven< / groupId> 
< artifactId> maven-plugin-api< / artifactId> 
< version> 3.0.5< / version> 
< / dependency> 
< dependency> 
< groupId> org.apache.maven< / groupId> 
< artifactId> maven-model< / artifactId> 
< version> 3.0.5< / version> 
< / dependency> 
< dependency> 
< groupId> org.apache.maven< / groupId> 
< artifactId> maven-core< / artifactId> 
< version> 3.0.5< / version> 
< / dependency> 
< dependency> 
< groupId> org.apache.maven.plugin-testing< / groupId> 
< artifactId> maven-plugin-testing-harness< / artifactId> 
< version> 2.1< / version> 
< scope> test< / scope> 
< / dependency> 
  
任何想法？
解决方案
最近我遇到了同样的例外。经过一番研究后，我发现maven-compat插件解决了这个问题：
 < dependency> 
< groupId> org.apache.maven< / groupId> 
< artifactId> maven-compat< / artifactId> 
< version> 3.0.5< / version> 
< scope> test< / scope> 
< / dependency> 
  
 
I'm trying to use maven-plugin-testing-harness version 2.1 with the following test case:
public class FooTest extends AbstractMojoTestCase {
  @Override
  protected void setUp() throws Exception {
    super.setUp();
  }
  public void testSomething() throws Exception {
    // todo
  }
}
The test fails at the setUp() call:
org.codehaus.plexus.component.repository.exception.ComponentLookupException: java.util.NoSuchElementException
  role: org.apache.maven.repository.RepositorySystem
roleHint: 
    at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:257)
    at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:245)
    at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:239)
    at org.codehaus.plexus.PlexusTestCase.lookup(PlexusTestCase.java:206)
    at org.apache.maven.plugin.testing.AbstractMojoTestCase.setUp(AbstractMojoTestCase.java:118)
    at foo.FooTest.setUp(FooTest.java:54)
These dependencies I have in the pom.xml:
    <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-plugin-api</artifactId>
        <version>3.0.5</version>
    </dependency>
    <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-model</artifactId>
        <version>3.0.5</version>
    </dependency>
    <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-core</artifactId>
        <version>3.0.5</version>
    </dependency>
    <dependency>
        <groupId>org.apache.maven.plugin-testing</groupId>
        <artifactId>maven-plugin-testing-harness</artifactId>
        <version>2.1</version>
        <scope>test</scope>
    </dependency>
Any ideas?
 解决方案 
Recently I faced the same exception. After a bit researching I found that maven-compat plugin solves the problem:
<dependency>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-compat</artifactId>
    <version>3.0.5</version>
    <scope>test</scope>
</dependency>
                        
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