* specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.repository;

/**
 * Authentication
 */
public class Authentication {

    private String privateKey;

    private String passphrase;

    public Authentication(String userName, String password) {
        this.username = userName;
        this.password = password;
    }

    /**

    }

    public boolean isProjectAware() {
        return false;
    }

    public Authentication getAuthentication() {
        return authentication;
    }

    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;
    }

    public Proxy getProxy() {
        return proxy;
    }

    public void setProxy(Proxy proxy) {

     * @since 3.0-beta-1
     */
    boolean isProjectAware();

    /**
     * @param authentication authentication
     * @since 3.0-alpha-3
     */
    void setAuthentication(Authentication authentication);

    /**
     * @return repository authentication
     * @since 3.0-alpha-3
     */
    Authentication getAuthentication();

    /**
     * @param proxy proxy
     * @since 3.0-alpha-3

        repositorySystem.injectAuthentication(Arrays.asList(repository), Arrays.asList(server));
        Authentication authentication = repository.getAuthentication();
        assertNotNull(authentication);
        assertEquals("jason", authentication.getUsername());
        assertEquals("abc123", authentication.getPassword());
    }

    }

    protected static <T> boolean eq(T s1, T s2) {
        return Objects.equals(s1, s2);
    }

    public Authentication getAuthentication() {
        return authentication;
    }

    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;
    }

    public Proxy getProxy() {
        return proxy;
    }

    public void setProxy(Proxy proxy) {

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.wagon.ResourceDoesNotExistException;
import org.apache.maven.wagon.TransferFailedException;
import org.apache.maven.wagon.authentication.AuthenticationInfo;
import org.apache.maven.wagon.proxy.ProxyInfo;

/**
 * Manages <a href="https://maven.apache.org/wagon">Wagon</a> related operations in Maven.
 *
 */
@Deprecated

            }
        }
    }

    private Authentication getAuthentication(AuthenticationSelector selector, ArtifactRepository repository) {
        if (selector != null) {
            RemoteRepository repo = RepositoryUtils.toRepo(repository);
            org.eclipse.aether.repository.Authentication auth = selector.getAuthentication(repo);
            if (auth != null) {

                        }
                    }

                    Authentication authentication = new Authentication(server.getUsername(), server.getPassword());
                    authentication.setPrivateKey(server.getPrivateKey());
                    authentication.setPassphrase(server.getPassphrase());

                    repository.setAuthentication(authentication);
                } else {

        }
        return result;
    }

    private static Authentication toAuthentication(org.apache.maven.artifact.repository.Authentication auth) {
        Authentication result = null;
        if (auth != null) {
            AuthenticationBuilder authBuilder = new AuthenticationBuilder();

OAuth2 with scopes is the mechanism used by many big authentication providers, like Facebook, Google, GitHub, Microsoft, Twitter, etc. They use it to provide specific permissions to users and applications.

Every time you "log in with" Facebook, Google, GitHub, Microsoft, Twitter, that application is using OAuth2 with scopes.