Files.getLastModifiedTime(packagedArtifactFile.toPath()).toMillis();

            if (session.getProjectBuildingRequest().getBuildStartTime() != null) {
                long buildStartTime =
                        session.getProjectBuildingRequest().getBuildStartTime().getTime();
                if (artifactLastModified > buildStartTime) {
                    return true;
                }
            }

        // NOTE: Order counts here!
        valueSources.add(basedirValueSource);
        valueSources.add(baseUriValueSource);
        valueSources.add(new BuildTimestampValueSource(config.getBuildStartTime(), timestampFormat));
        valueSources.add(modelValueSource1);
        valueSources.add(new MapBasedValueSource(config.getUserProperties()));
        valueSources.add(new MapBasedValueSource(modelProperties));

    /**
     * Gets the start time of the build.
     *
     * @return The start time of the build or {@code null} if unknown.
     */
    Date getBuildStartTime();

    /**
     * Sets the start time of the build.
     *
     * @param buildStartTime The start time of the build, may be {@code null}.
     * @return This request, never {@code null}.
     */

            modelBuildingRequest.userProperties(toMap(request.getUserProperties()));
            // bv4: modelBuildingRequest.setBuildStartTime(request.getBuildStartTime());
            modelBuildingRequest.modelResolver(modelResolver);
            DefaultModelRepositoryHolder holder = new DefaultModelRepositoryHolder(
                    internalSession,