if (classifier == null) {
                        if (a.getClassifier() != null) {
                            result = 1;
                        }
                    } else {
                        if (a.getClassifier() != null) {
                            result = classifier.compareTo(a.getClassifier());
                        } else {
                            result = -1;

        result = 31 * result + a.getType().hashCode();
        if (a.getVersion() != null) {
            result = 31 * result + a.getVersion().hashCode();
        }
        result = 31 * result + (a.getClassifier() != null ? a.getClassifier().hashCode() : 0);
        result = 31 * result + (a.getScope() != null ? a.getScope().hashCode() : 0);
        result = 31 * result

                artifact.getArtifactId(),
                artifact.getVersion(),
                null,
                artifact.getProperty(ArtifactProperties.TYPE, artifact.getExtension()),
                nullify(artifact.getClassifier()),
                handler);

        result.setFile(artifact.getFile());
        result.setResolved(artifact.getFile() != null);

        List<String> trail = new ArrayList<>(1);

        }

        public void setExtension(String extension) {
            this.extension = extension;
        }

        public String getClassifier() {
            return classifier;
        }

        public void setClassifier(String classifier) {
            this.classifier = classifier;
        }
    }

    public static class Project {
        private String modelVersion;

                        result.addException(exception);
                    }
                }
            } else {
                String key = SNAPSHOT + getKey(artifact.getClassifier(), artifact.getExtension());
                merge(infos, SNAPSHOT, key);
                if (!resolve(result, infos, key)) {
                    result.setVersion(version);
                }
            }

                message,
                artifact.getGroupId(),
                artifact.getArtifactId(),
                artifact.getVersion(),
                artifact.getType(),
                artifact.getClassifier(),
                remoteRepositories,
                artifact.getDependencyTrail(),
                t);
        this.artifact = artifact;
    }

    public Artifact getArtifact() {

     */
    private static boolean isTestArtifact(Artifact artifact) {
        return ("test-jar".equals(artifact.getProperty("type", "")))
                || ("jar".equals(artifact.getExtension()) && "tests".equals(artifact.getClassifier()));
    }

    private File findInProjectLocalRepository(Artifact artifact) {
        Path target = getArtifactPath(artifact);
        return Files.isRegularFile(target) ? target.toFile() : null;
    }

        StringBuilder sb = new StringBuilder(128);
        sb.append(artifact.getArtifactId());
        sb.append('-').append(artifact.getBaseVersion());
        if (artifact.getClassifier() != null) {
            sb.append('-').append(artifact.getClassifier());
        }
        sb.append('.').append(artifact.getType()).append(LAST_UPDATE_TAG);
        return new File(artifact.getFile().getParentFile(), sb.toString());
    }

                artifact.getClassifier(),
                artifact.getBaseVersion());
    }

    private static String getId(ClassRealmConstituent constituent) {
        return getId(
                constituent.getGroupId(),
                constituent.getArtifactId(),
                constituent.getType(),
                constituent.getClassifier(),
                constituent.getVersion());
    }

        assertEquals(1, target.getVersioning().getSnapshotVersions().size());
        assertEquals(
                "sources", target.getVersioning().getSnapshotVersions().get(0).getClassifier());
        assertEquals("jar", target.getVersioning().getSnapshotVersions().get(0).getExtension());
        assertEquals(
                "20200710072412",