private final Provider<BwcVersions.UnreleasedVersionInfo> unreleasedVersionInfo;
    private final Provider<InternalDistributionBwcSetupPlugin.BwcTaskThrottle> bwcTaskThrottleProvider;

    private Provider<File> checkoutDir;

    public BwcSetupExtension(
            Project project,
            Provider<BwcVersions.UnreleasedVersionInfo> unreleasedVersionInfo,

    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,

            }
            return null;
        }));

        resolutions.register("bwc", distributionResolution -> distributionResolution.setResolver((project, distribution) -> {
            BwcVersions.UnreleasedVersionInfo unreleasedInfo = BuildParams.getBwcVersions().unreleasedInfo(Version.fromString(distribution.getVersion()));
            if (unreleasedInfo != null) {
                if (distribution.getBundledJdk() == false) {