compat/maven-resolver-provider/src/main/java/org/apache/maven/repository/internal/RelocatedArtifact.java [32:117]:
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public final class RelocatedArtifact extends AbstractArtifact {

    private final Artifact artifact;

    private final String groupId;

    private final String artifactId;

    private final String classifier;

    private final String extension;

    private final String version;

    private final String message;

    public RelocatedArtifact(
            Artifact artifact,
            String groupId,
            String artifactId,
            String classifier,
            String extension,
            String version,
            String message) {
        this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;
        this.classifier = (classifier != null && !classifier.isEmpty()) ? classifier : null;
        this.extension = (extension != null && !extension.isEmpty()) ? extension : null;
        this.version = (version != null && !version.isEmpty()) ? version : null;
        this.message = (message != null && !message.isEmpty()) ? message : null;
    }

    @Override
    public String getGroupId() {
        if (groupId != null) {
            return groupId;
        } else {
            return artifact.getGroupId();
        }
    }

    @Override
    public String getArtifactId() {
        if (artifactId != null) {
            return artifactId;
        } else {
            return artifact.getArtifactId();
        }
    }

    @Override
    public String getClassifier() {
        if (classifier != null) {
            return classifier;
        } else {
            return artifact.getClassifier();
        }
    }

    @Override
    public String getExtension() {
        if (extension != null) {
            return extension;
        } else {
            return artifact.getExtension();
        }
    }

    @Override
    public String getVersion() {
        if (version != null) {
            return version;
        } else {
            return artifact.getVersion();
        }
    }

    // Revise these three methods when MRESOLVER-233 is delivered
    @Override
    public Artifact setVersion(String version) {
        String current = getVersion();
        if (current.equals(version) || (version == null && current.isEmpty())) {
            return this;
        }
        return new RelocatedArtifact(artifact, groupId, artifactId, classifier, extension, version, message);
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impl/maven-impl/src/main/java/org/apache/maven/impl/resolver/RelocatedArtifact.java [31:116]:
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public final class RelocatedArtifact extends AbstractArtifact {

    private final Artifact artifact;

    private final String groupId;

    private final String artifactId;

    private final String classifier;

    private final String extension;

    private final String version;

    private final String message;

    public RelocatedArtifact(
            Artifact artifact,
            String groupId,
            String artifactId,
            String classifier,
            String extension,
            String version,
            String message) {
        this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;
        this.classifier = (classifier != null && !classifier.isEmpty()) ? classifier : null;
        this.extension = (extension != null && !extension.isEmpty()) ? extension : null;
        this.version = (version != null && !version.isEmpty()) ? version : null;
        this.message = (message != null && !message.isEmpty()) ? message : null;
    }

    @Override
    public String getGroupId() {
        if (groupId != null) {
            return groupId;
        } else {
            return artifact.getGroupId();
        }
    }

    @Override
    public String getArtifactId() {
        if (artifactId != null) {
            return artifactId;
        } else {
            return artifact.getArtifactId();
        }
    }

    @Override
    public String getClassifier() {
        if (classifier != null) {
            return classifier;
        } else {
            return artifact.getClassifier();
        }
    }

    @Override
    public String getExtension() {
        if (extension != null) {
            return extension;
        } else {
            return artifact.getExtension();
        }
    }

    @Override
    public String getVersion() {
        if (version != null) {
            return version;
        } else {
            return artifact.getVersion();
        }
    }

    // Revise these three methods when MRESOLVER-233 is delivered
    @Override
    public Artifact setVersion(String version) {
        String current = getVersion();
        if (current.equals(version) || (version == null && current.isEmpty())) {
            return this;
        }
        return new RelocatedArtifact(artifact, groupId, artifactId, classifier, extension, version, message);
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