* are NOT recommended (code like {@code "pom".equals(project.getPackaging)} must be avoided). Use method
     * {@link #getArtifacts()} to gain access to POM or build artifact.
     *
     * @see #getArtifacts()
     */
    @Nonnull
    Packaging getPackaging();

    /**
     * {@return the project language}. It is by default determined by {@link #getPackaging()}.
     *

     *
     * @return a Map of artifacts, never {@code null}
     * @see #getArtifacts()
     */
    public Map<String, Artifact> getArtifactMap() {
        if (artifactMap == null) {
            artifactMap = ArtifactUtils.artifactMapByVersionlessId(getArtifacts());
        }

        return artifactMap;
    }

    @Override
    public boolean equals(Object object) {

                this.timestamp = -1;
            }
        }

        public Artifact getArtifact() {
            return pomArtifact;
        }

        public Artifact getRelocatedArtifact() {
            return relocatedArtifact;
        }

        public List<Artifact> getArtifacts() {
            return artifacts;
        }

        public Map<String, Artifact> getManagedVersions() {

            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        return artifacts;
    }

    public void setArtifacts(Set<Artifact> artifacts) {
        this.artifacts = artifacts;
    }

    /**
     * Returns project's all artifacts as an immutable ordered collection. The collection contains:
     * <ul>
     *   <li>The project's artifacts ({@link Project#getArtifacts()}):
     *     <ul>
     *       <li>The POM artifact (always present)</li>
     *       <li>The main project artifact (if applicable based on packaging)</li>
     *     </ul>
     *   </li>

        assertEquals(createSet(artifacts), res.getArtifacts(), "Check artifact list");
        assertEquals("1.0", getArtifact("d", res.getArtifacts()).getVersion(), "Check version");
        assertEquals("2.0", getArtifact("b", res.getArtifacts()).getVersion(), "Check version");
    }

    @Test

        printErrors(result);

        assertEquals(2, result.getArtifacts().size());

        assertTrue(result.getArtifacts().contains(g));

        assertTrue(result.getArtifacts().contains(h));

        assertLocalArtifactPresent(g);

        assertLocalArtifactPresent(h);
    }

    @Test
    void

        InternalSession.associate(session, iSession);

        ArtifactResolutionResult result = repositorySystem.resolve(request);
        resolutionErrorHandler.throwErrors(request, result);
        assertEquals(2, result.getArtifacts().size());

        //
        // System scoped version which should
        //
        d.setScope(Artifact.SCOPE_SYSTEM);

        if (expectedExpandedDistDirectory != null) {
            String expandedDistConfiguration = "expanded-" + projectName;
            bwcProject.getConfigurations().create(expandedDistConfiguration);
            bwcProject.getArtifacts().add(expandedDistConfiguration, expectedExpandedDistDirectory, artifact -> {
                artifact.setName("elasticsearch");
                artifact.builtBy(buildBwcTask);
                artifact.setType("directory");

            Set<Artifact> allArtifacts = new LinkedHashSet<>();
            allArtifacts.add(rootArtifact);
            allArtifacts.addAll(result.getArtifacts());
            result.setArtifacts(allArtifacts);
        }

        return result;
    }

    @Override
    public void resolve(