}

    /**
     * Gets the effective version of the model.
     *
     * @return The effective version of the model or an empty string if unknown, never {@code null}.
     */
    public String getVersion() {
        return (version != null) ? version : "";
    }

    /**
     * Sets the effective version of the model.
     *
     * @param version The effective version of the model, may be {@code null}.

        when(artifact.getArtifactId()).thenReturn("artifact1");
        when(artifact.getExtension()).thenReturn("ext");
        when(artifact.getClassifier()).thenReturn("classifier1");
        when(artifact.getVersion()).thenReturn("1");
        artifacts.add(artifact);

        Artifact artifact2 = mock(Artifact.class);
        when(artifact2.getFile()).thenReturn(null);
        when(artifact2.getGroupId()).thenReturn("group1");

        }
    }

    protected void mergeModel_Version(Model target, Model source, boolean sourceDominant, Map<Object, Object> context) {
        String src = source.getVersion();
        if (src != null) {
            if (sourceDominant || target.getVersion() == null) {
                target.setVersion(src);
                target.setLocation("version", source.getLocation("version"));
            }
        }
    }

                        isAny(relocation.target.getExtension()) ? null : relocation.target.getExtension(),
                        isAny(relocation.target.getVersion()) ? null : relocation.target.getVersion(),
                        relocation.global ? "User global relocation" : "User project relocation");
                LOGGER.debug(
                        "The artifact {} has been relocated to {}: {}",

        MavenSession session = legacySupport.getSession();

        if (plugin.getVersion() == null) {
            PluginVersionRequest versionRequest = new DefaultPluginVersionRequest(
                    plugin, session.getRepositorySession(), project.getRemotePluginRepositories());
            plugin.setVersion(pluginVersionResolver.resolve(versionRequest).getVersion());
        }

        try {

                .groupId(requireNonNull(dependency, "dependency").getGroupId())
                .artifactId(dependency.getArtifactId())
                .version(dependency.getVersion().toString())
                .classifier(dependency.getClassifier())
                .extension(dependency.getExtension())
                .type(dependency.getType().id())
                .scope(dependency.getScope().id())

    public InvalidDependencyVersionException(
            String projectId, Dependency dependency, File pomFile, InvalidVersionSpecificationException cause) {
        super(projectId, formatLocationInPom(dependency), dependency.getVersion(), pomFile, cause);
        this.dependency = dependency;
    }

    private static String formatLocationInPom(Dependency dependency) {

        this.projectId = (project != null)
                ? project.getGroupId() + ':' + project.getArtifactId() + ':' + project.getVersion()
                : "";
        this.pomFile = (project != null) ? project.getFile() : null;
        this.project = project;
        this.problems = problems != null ? problems : Collections.emptyList();

            assertNotNull(buffer.getReferrals());
            assertEquals(2, buffer.getReferrals().length);
            assertEquals(1, buffer.getReferrals()[0].getVersion());
            assertEquals(1, buffer.getReferrals()[1].getVersion());
        }

        @ParameterizedTest
        @DisplayName("Should handle various pathConsumed values")

        return artifact.getExtension();
    }

    @Override
    public String getClassifier() {
        return artifact.getClassifier();
    }

    @Override
    public String getVersion() {
        return artifact.getBaseVersion();
    }

    @Override
    public File getFile() {
        return artifact.getFile();
    }

    @Override
    public String toString() {