String artifactId = plugin.childText(MavenPomElements.Elements.ARTIFACT_ID);

        // Default groupId for Maven plugins
        if (groupId == null && artifactId != null && artifactId.startsWith(MAVEN_PLUGIN_PREFIX)) {
            groupId = DEFAULT_MAVEN_PLUGIN_GROUP_ID;
        }

        return (groupId != null && artifactId != null) ? groupId + ":" + artifactId : null;
    }

    bodies for debugging. It requires this Maven dependency:

     ```xml
     <dependency>
       <groupId>com.squareup.okhttp</groupId>
       <artifactId>logging-interceptor</artifactId>
       <version>2.6.0</version>
     </dependency>
     ```

    Configure basic logging like this:

    ```java
    HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();

      Android10Platform.buildIfSupported()
        ?: AndroidPlatform.buildIfSupported()
    if (androidPlatform != null) return androidPlatform

    // If the API version is 0, assume this is the Android artifact, but running on the JVM without Robolectric.
    if (Build.VERSION.SDK_INT == 0) {
      return Jdk9Platform.buildIfSupported()
        ?: Platform()
    }

under the License.
-->

<plexus>
  <components>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>testfile</role-hint>
      <implementation>org.apache.maven.artifact.resolver.TestFileWagon</implementation>
      <instantiation-strategy>per-lookup</instantiation-strategy>
    </component>
  </components>

     *   where multiple modules in the reactor have the same artifactId.
     * <p>
     * {@code -rf :artifactId} will pick up the first module which matches, but when multiple modules in the reactor
     *   have the same artifactId, effective failed module might be later in build reactor.

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository.metadata;

/**
 * Error while retrieving repository metadata from the repository.
 *
 */
@Deprecated
public class RepositoryMetadataResolutionException extends Exception {

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository;

import org.apache.maven.artifact.handler.ArtifactHandler;

/**
 * Assists unit testing.
 *
 */
@Deprecated
class TestArtifactHandler implements ArtifactHandler {

    private String type;

    private String extension;

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.codelibs.fess</groupId>
  <artifactId>fess-crawler-lasta</artifactId>
  <versioning>
    <latest>14.14.0</latest>
    <release>14.14.0</release>
    <versions>
      <version>1.0.0</version>
      <version>1.0.1</version>
      <version>1.0.2</version>
      <version>1.0.3</version>
      <version>1.0.4</version>
      <version>1.0.5</version>
      <version>1.0.6</version>

            return step.name;
        } else {
            String artifactId = step.project.getArtifactId();
            if (duplicateIds.contains(artifactId)) {
                return step.name + "(" + step.project.getGroupId() + ":" + artifactId + ")";
            } else {
                return step.name + "(:" + artifactId + ")";
            }
        }
    }

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

@Deprecated