-Dgpg.passphrase="<passphrase>" -Dgpg.keyname="<your key ID>"
                        In order to create the key pair, use the command "gpg &ndash;&ndash;gen-key".
                        (&ndash;&ndash; stands for double dash)
                        -->
                        <artifactId>maven-gpg-plugin</artifactId>
                        <version>1.6</version>
                        <executions>

                }
            }

            int hash = 17;
            hash = hash * 31 + groupId.hashCode();
            hash = hash * 31 + artifactId.hashCode();
            hash = hash * 31 + version.hashCode();
            hash = hash * 31 + hash(workspace);
            hash = hash * 31 + localRepo.hashCode();
            hash = hash * 31 + RepositoryUtils.repositoriesHashCode(repositories);

        }

        id = artifact.getGroupId() + ':' + id;

        return !excludes.contains(id);
    }

    @Override
    public int hashCode() {
        int hash = 17;
        hash = hash * 31 + excludes.hashCode();
        return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

            hash = hash * 31 + Objects.hashCode(dependency.getGroupId());
            hash = hash * 31 + Objects.hashCode(dependency.getArtifactId());
            hash = hash * 31 + Objects.hashCode(dependency.getVersion());
            hash = hash * 31 + Objects.hashCode(dependency.getType());
            hash = hash * 31 + Objects.hashCode(dependency.getClassifier());

        Proxy proxy = repository.getProxy();
        if (proxy != null) {
            if (proxy.getUserName() != null) {
                int hash = (proxy.getUserName() + proxy.getPassword()).hashCode();
                buffer.append(hash).append('@');
            }
            buffer.append(proxy.getHost()).append(':').append(proxy.getPort()).append('>');
        }

        final List<RemoteRepository> repositories;
        final int hash;

        Key(String groupId, String artifactId, List<RemoteRepository> repositories) {
            this.groupId = groupId;
            this.artifactId = artifactId;
            this.repositories = repositories;
            this.hash = Objects.hash(groupId, artifactId, repositories);
        }

        @Override

 *
 * @since 4.0.0
 */
@Experimental
public interface ExtensibleEnum {

    /**
     * The {@code id} uniquely represents a value for this extensible enum.
     * This id should be used to compute the equality and hash code for the instance.
     *
     * @return the id
     */
    @Nonnull
    String id();

        GAKey(String groupId, String artifactId) {
            this.groupId = (groupId != null) ? groupId : "";
            this.artifactId = (artifactId != null) ? artifactId : "";

            hashCode = Objects.hash(this.groupId, this.artifactId);
        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }

     * @since 4.0.0
     */
    public FileSource(Path path) {
        this.path = Objects.requireNonNull(path, "path cannot be null").toAbsolutePath();
        this.hashCode = Objects.hash(path);
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return Files.newInputStream(path);
    }

    @Override
    public String getLocation() {

                && Objects.equals(classifier, that.classifier)
                && Objects.equals(version, that.version);
    }

    @Override
    public int hashCode() {
        return Objects.hash(groupId, artifactId, type, classifier, version);
    }

    @Override
    public String getBaseVersion() {
        if (baseVersion == null && version != null) {
            setBaseVersionInternal(version);