* @param newValue the data to associate with the key, may be {@code null} to remove the mapping
     * @return {@code true} if the key mapping was successfully updated from the old value to the new value,
     *         {@code false} if the current key mapping didn't match the expected value and was not updated.
     */
    <T> boolean replace(@Nonnull Key<T> key, @Nullable T oldValue, @Nullable T newValue);

    /**

          <version>4.0.0+</version>
          <description>
            Gives the status of this artifact in the remote repository.
            This must not be set in your local project, as it is updated by
            tools placing it in the repository. Valid values are: {@code none} (default),
            {@code converted} (repository manager converted this from an Maven 1 POM),
            {@code partner}

            node.getArtifact().setFile(artifact.getFile());
        }
    }

    /**
     * Check if the artifactScope needs to be updated. <a
     * href="http://docs.codehaus.org/x/IGU#DependencyMediationandConflictResolution-Scoperesolution">More info</a>.
     *
     * @param farthest farthest resolution node
     * @param nearest nearest resolution node

    int OMIT_FOR_NEARER = 5;

    int UPDATE_SCOPE = 6;

    @Deprecated
    int MANAGE_ARTIFACT = 7;

    int OMIT_FOR_CYCLE = 8;

    /**
     * this event means that the artifactScope has NOT been updated to a farther node artifactScope because current
     * node is in the first level pom
     */
    int UPDATE_SCOPE_CURRENT_POM = 9;

    int SELECT_VERSION_FROM_RANGE = 10;

    int RESTRICT_RANGE = 11;

        if (result != null) {
            return result;
        }

        // second try, refetch all (possibly outdated) metadata that wasn't updated in the first attempt

        if (!request.getRepositorySession().isOffline() && !requests.isEmpty()) {
            DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(request.getRepositorySession());

    /**
     * Injects the mirroring information into the specified repositories. For each repository that is matched by a
     * mirror, its URL and ID will be updated to match the values from the mirror specification. Repositories without a
     * matching mirror will pass through unchanged. Note: This method must be called before

     * provided model directly or to create a clone of the model and interpolate the clone. Callers should always use
     * the returned model and must not rely on the input model being updated.
     *
     * @param model The model to interpolate, must not be {@code null}.
     * @param projectDir The project directory, may be {@code null} if the model does not belong to a local project but

        String originalScope = (String) node.getData().get(ConflictResolver.NODE_DATA_ORIGINAL_SCOPE);
        if (originalScope != null && !originalScope.equals(node.getDependency().getScope())) {
            details.add("scope updated from " + originalScope);
        }

        if (!included) {
            if (Objects.equals(winnerVersion, node.getArtifact().getVersion())) {
                details.add("omitted for duplicate");

        String originalScope = (String) node.getData().get(ConflictResolver.NODE_DATA_ORIGINAL_SCOPE);
        if (originalScope != null && !originalScope.equals(node.getDependency().getScope())) {
            details.add("scope updated from " + originalScope);
        }

        if (!included) {
            if (Objects.equals(winnerVersion, node.getArtifact().getVersion())) {
                details.add("omitted for duplicate");

     * configured update policy.
     *
     * @return {@code true} if remote repositories should be re-checked for updated artifacts/metadata, {@code false}
     *         otherwise.
     */
    boolean isForceUpdate();

    /**
     * Enables/disabled forced checks for updated artifacts/metadata on remote repositories.
     *