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maven-3

Failed to read artifact descriptor for org.apache.maven.plugins:maven-source-plugin:jar:2.4

Thanks to a Dropwizard Maven archetype I generated a sample Dropwizard Maven project. The pom.xml notably uses maven-source-plugin:

<plugin>
    <artifactId>maven-source-plugin</artifactId>
    <version>2.4</version>
    <executions>
        <execution>
           <id>attach-sources</id>
           <goals>
              <goal>jar</goal>
           </goals>
        </execution>
    </executions>
</plugin>

When I run "clean install" I have the following error :

Plugin org.apache.maven.plugins:maven-source-plugin:2.4 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-source-plugin:jar:2.4: Could not transfer artifact org.apache.maven.plugins:maven-source-plugin:pom:2.4 from/to central (http://repo.maven.apache.org/maven2): Connection refused: connect -> [Help 1]

The "maven-source-plugin" dependency is stored in the Nexus repository of my company. So I tried the adding of the plugin dependency between dependencies and /dependencies :

<dependencies>
    ...
    <dependency>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-source-plugin</artifactId>
        <version>2.4</version>
    </dependency>
</dependencies>

but it did not correct the problem. I also tried to add the dependency at the call of the plugin :

 <plugin>
    <artifactId>maven-source-plugin</artifactId>
    <version>2.4</version>
    <executions>
       <execution>
           <id>attach-sources</id>
           <goals>
              <goal>jar</goal>
           </goals>
       </execution>
      </executions>
      <dependencies>
          <dependency>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-source-plugin</artifactId>
              <version>2.4</version>
          </dependency>
     </dependencies>
 </plugin>

but it did not work either

Solution

  • Two possible situations :