List<ArtifactRepository> externalRepositories,
            ProjectBuildingRequest request)
            throws InvalidRepositoryException;

    /**
     * Creates the project realm that hosts the build extensions of the specified model.
     *
     * @param project The project to create the project realm for, must not be {@code null}
     * @param model The model to create the project realm for, must not be {@code null}

    /**
     * Return proxy server host name.
     *
     * @return proxy server host name
     */
    public String getHost() {
        return host;
    }

    /**
     * Set proxy host name.
     *
     * @param host proxy server host name
     */
    public void setHost(String host) {
        this.host = host;
    }

    /**
     * Get user's password used to log in to proxy server.
     *

          </description>
          <type>String</type>
          <defaultValue>8080</defaultValue>
        </field>
        <field>
          <name>host</name>
          <version>1.0.0+</version>
          <description>
            The proxy host.
          </description>
          <type>String</type>
          <required>true</required>
        </field>
        <field>
          <name>nonProxyHosts</name>

     */
    public void setClassRealm(ClassRealm classRealm) {
        this.classRealm = classRealm;
    }

    /**
     * Gets the project's class realm. This class realm hosts the build extensions of the project.
     * <strong>Warning:</strong> This is an internal utility method that is only public for technical reasons, it is not

    private String passphrase;

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

    /**
     * Username used to log in to the host
     */
    private String username;

    /**
     * Password associated with the login
     */
    private String password;

    /**

  <repository>
    <id>repo</id>
    <name>Repository Name</name>
    <url>scp://host/path/to/repo</url>
  </repository>
  <!-- use the following if you ARE using a snapshot version. -->
  <snapshotRepository>
    <id>repo</id>
    <name>Repository Name</name>
    <url>scp://host/path/to/repo</url>
  </snapshotRepository>
</distributionManagement>
    ]]></configuration>

        <configuration>
          <address>******@****.***</address>
        </configuration>
      </notifier>
      <notifier>
        <type>irc</type>
        <configuration>
          <host>irc.codehaus.org</host>
          <port>6667</port>
          <channel>#plexus</channel>
        </configuration>
      </notifier>
    </notifiers>
  </ciManagement>
  <inceptionYear>2001</inceptionYear>
  <mailingLists>

                exceptionMessage = t.getClass().getSimpleName();
            }

            if (t instanceof UnknownHostException && !fullMessage.contains("host")) {
                fullMessage = join(fullMessage, "Unknown host " + exceptionMessage);
            } else if (!fullMessage.contains(exceptionMessage)) {
                fullMessage = join(fullMessage, exceptionMessage);
            }
        }

                + "-Dclassifier=aClassifier -Dpackaging=jar -Dfile=/path/to/file" + LS + LS
                + "  Alternatively, if you host your own repository you can deploy the file there: " + LS
                + "      mvn deploy:deploy-file -DgroupId=aGroupId -DartifactId=anArtifactId"

        <configuration>
          <address>******@****.***</address>
        </configuration>
      </notifier>
      <notifier>
        <type>irc</type>
        <configuration>
          <host>irc.codehaus.org</host>
          <port>6667</port>
          <channel>#plexus</channel>
        </configuration>
      </notifier>
    </notifiers>
  </ciManagement>
  <inceptionYear>2001</inceptionYear>
  <mailingLists>