String type = dependency.childText(MavenPomElements.Elements.TYPE);
        String classifier = dependency.childText(MavenPomElements.Elements.CLASSIFIER);

        return groupId + ":" + artifactId + ":" + (type != null ? type : "jar") + ":"
                + (classifier != null ? classifier : "");
    }

        a = artifactFactory.createArtifactWithClassifier("groupId", "a", "0.0.1-SNAPSHOT", "jar", "classifier");
        file = new File(localRepository.getBasedir(), localRepository.pathOf(a));
        a.setFile(file);

        assertEquals(
                "a-0.0.1-SNAPSHOT-classifier.jar.lastUpdated",
                updateCheckManager.getTouchfile(a).getName());
    }

      <artifactId>junit-jupiter-api</artifactId>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>com.google.inject</groupId>
      <artifactId>guice</artifactId>
      <classifier>classes</classifier>
      <!-- only for backward compatibility otherwhise would be test-->
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>

        }

        ArtifactHandler handler = newHandler(artifact);

        /*
         * NOTE: From Artifact.hasClassifier(), an empty string and a null both denote "no classifier". However, some
         * plugins only check for null, so be sure to nullify an empty classifier.
         */
        org.apache.maven.artifact.Artifact result = new org.apache.maven.artifact.DefaultArtifact(
                artifact.getGroupId(),

        SimpleProblemCollector result = validateRaw("bad-import-scope-classifier.xml");

        assertViolations(result, 0, 1, 0);

        assertContains(
                result.getErrors().get(0),
                "'dependencyManagement.dependencies.dependency.classifier' for test:a:pom:cls must be empty");
    }

    @Test

                    }
                }
            }
        }
        return plugins.values();
    }

    private PluginInfo extractPluginInfo(Artifact artifact) {
        // sanity: jar, no classifier and file exists
        if (artifact != null
                && "jar".equals(artifact.getExtension())
                && "".equals(artifact.getClassifier())
                && artifact.getPath() != null) {

      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>com.google.inject</groupId>
      <artifactId>guice</artifactId>
      <classifier>classes</classifier>
      <scope>provided</scope>
    </dependency>

    <!-- Plexus Utils + XML -->
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-utils</artifactId>

                "sample.group",
                "sample-art",
                VersionRange.createFromVersion("1.0"),
                "scope",
                "jar",
                "classifier",
                null);
        artifact.setFile(getTestFile("target/sample-art"));

        StringWagon wagon = (StringWagon) wagonManager.getWagon("string");

        wagon.clearExpectedContent();

            default ->
                throw new IllegalArgumentException("Bad artifact coordinates " + coords
                        + ", expected format is <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>");
        };
        return s;
    }

    Artifact createProjectArtifact(String groupId, String artifactId, String version);

    Artifact createArtifactWithClassifier(
            String groupId, String artifactId, String version, String type, String classifier);

    Artifact createPluginArtifact(Plugin plugin);

    Artifact createDependencyArtifact(Dependency dependency);