* value for which {@link Comparable#compareTo(Object)} never returns a positive value for any
   * input of type {@code C}.
   *
   * <p>The default implementation throws {@code NoSuchElementException}.
   *
   * @return the minimum value of type {@code C}; never null
   * @throws NoSuchElementException if the type has no (practical) minimum value; for example,

@Experimental
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).

            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "never",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }

                .collect(toSet());
    }

    /**
     * @return Required active profile identifiers, never {@code null}.
     */
    public Set<String> getRequiredActiveProfileIds() {
        return getProfileIds(pa -> !pa.optional && pa.active);
    }

    /**
     * @return Optional active profile identifiers, never {@code null}.
     */
    public Set<String> getOptionalActiveProfileIds() {

         * Gets key-value pairs providing information about the Maven runtime.
         *
         * @return The key-value pairs, never {@code null}.
         */
        Map<String, Object> getData();
    }

    /**
     * Initializes the spy.
     *
     * @param context The event spy context, never {@code null}.
     */
    void init(Context context) throws Exception;

    /**

            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "never",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "none"
            },
            "thresholdsStyle": {
              "mode": "off"
            }

    /**
     * Gets all projects in their intended build order, i.e. after topologically sorting the projects according to their
     * interdependencies.
     *
     * @return The projects in the build order, never {@code null}.
     */
    List<MavenProject> getSortedProjects();

    /**
     * Gets the downstream projects of the specified project. A downstream project is a project that directly or

    /**
     * Parses the specified version string, for example "1.0".
     *
     * @param version the version string to parse, must not be {@code null}
     * @return the parsed version, never {@code null}
     * @throws VersionParserException if the string violates the syntax rules of this scheme
     * @see org.apache.maven.api.Session#parseVersion(String)
     */
    @Nonnull

    /**
     * Gets the identifier of this repository.
     *
     * @return the (case-sensitive) identifier, never {@code null}
     */
    @Nonnull
    String getId();

    /**
     * Gets the type of the repository, for example "default".
     *
     * @return the (case-sensitive) type of the repository, never {@code null}
     */
    @Nonnull
    String getType();

     * is thrown so this information is merely meant to assist the user.
     *
     * @return the identifier of the project or an empty string if not known, never {@code null}
     */
    @Nonnull
    String getProjectId();

    /**
     * Gets the POM file from which the project was built.
     *
     * @return the optional POM file
     */
    @Nonnull