private final Map<Integer, List<Version>> groupByMajor;
    private final Map<Version, UnreleasedVersionInfo> unreleased;

    public class UnreleasedVersionInfo {
        public final Version version;
        public final String branch;
        public final String gradleProjectPath;

        UnreleasedVersionInfo(Version version, String branch, String gradleProjectPath) {
            this.version = version;

    private void assertUnreleasedBranchNames(List<String> expectedBranches, BwcVersions bwcVersions) {
        List<String> actualBranches = new ArrayList<>();
        bwcVersions.forPreviousUnreleased(unreleasedVersionInfo -> actualBranches.add(unreleasedVersionInfo.branch));
        assertEquals(expectedBranches, actualBranches);
    }

    private String formatVersionToLine(final String version) {

            .forPreviousUnreleased(
                (BwcVersions.UnreleasedVersionInfo unreleasedVersion) -> {
                    configureBwcProject(project.project(unreleasedVersion.gradleProjectPath), unreleasedVersion, bwcTaskThrottleProvider);
                }
            );
    }

    private void configureBwcProject(
        Project project,
        BwcVersions.UnreleasedVersionInfo versionInfo,