@Nonnull
    String getSource();

    /**
     * Gets the one-based index of the line containing the problem. The line number should refer to some text file that
     * is given by {@link #getSource()}.
     *
     * @return the one-based index of the line containing the problem or a non-positive value if unknown
     */
    int getLineNumber();

    /**

public interface Event {

    /**
     * Gets the type of the event.
     *
     * @return the type of the event, never {@code null}
     */
    @Nonnull
    EventType getType();

    /**
     * Gets the session from which this event originates.
     *
     * @return the current session, never {@code null}
     */
    @Nonnull
    Session getSession();

    /**
     * Gets the current project (if any).
     *

    /**
     *
     * @return the file model
     * @since 4.0.0
     */
    Model getFileModel();

    /**
     * Gets the assembled model.
     *
     * @return The assembled model, never {@code null}.
     */
    Model getEffectiveModel();

    /**
     * Gets the raw model as it was read from the input model source. Apart from basic validation, the raw model has not

        Extension,

        /**
         * A class realm for a plugin.
         */
        Plugin,
    }

    /**
     * Gets the type of the class realm.
     *
     * @return The type of the class realm, never {@code null}.
     */
    RealmType getType();

    /**
     * Gets the parent class realm (if any).
     *
     * @return The parent class realm or {@code null} if using the default parent.
     */

     */
    @Nonnull
    String getProjectId();

    /**
     * Gets the POM file from which the project was built.
     *
     * @return the optional POM file
     */
    @Nonnull
    Optional<Path> getPomFile();

    /**
     * Gets the project that was built.
     *

    /**
     * Gets the POM file of the project to build.
     *
     * @return The POM file of the project or {@code null} if not applicable (i.e. when processing a POM from the
     *         repository).
     * @deprecated Use {@link #getPomPath()} instead.
     */
    @Deprecated
    File getPomFile();

    /**
     * Gets the POM file of the project to build.
     *

     * @since 4.0.0
     */
    String PROPERTY_NAME_PACKAGING = "packaging";

    /**
     * Gets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @return The identifiers of those profiles to activate, never {@code null}.
     */
    List<String> getActiveProfileIds();

    /**
     * Gets the identifiers of those profiles that should be deactivated by explicit demand.
     *

 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services.SettingsBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface SettingsBuildingRequest {

    /**
     * Gets the global settings file.
     *
     * @return The global settings file or {@code null} if none.
     */
    File getGlobalSettingsFile();

    /**

     */
    String getSource();

    /**
     * Gets the one-based index of the line containing the problem. The line number should refer to some text file that
     * is given by {@link #getSource()}.
     *
     * @return The one-based index of the line containing the problem or a non-positive value if unknown.
     */
    int getLineNumber();

    /**

    assertEquals(UnsignedLong.ZERO, ArbitraryInstances.get(UnsignedLong.class));
    assertEquals(0, ArbitraryInstances.get(BigDecimal.class).intValue());
    assertEquals(0, ArbitraryInstances.get(BigInteger.class).intValue());
    assertEquals("", ArbitraryInstances.get(String.class));
    assertEquals("", ArbitraryInstances.get(CharSequence.class));
    assertEquals(SECONDS, ArbitraryInstances.get(TimeUnit.class));