private final boolean changingModule;

    public ModuleDescriptorHashModuleSource(HashCode descriptorHash, boolean changingModule) {
        this.descriptorHash = descriptorHash;
        this.changingModule = changingModule;
    }

    @Override
    public String toString() {
        return "{descriptor: " + descriptorHash + ", changing: " + changingModule + "}";
    }

        return mustRefreshModule(DefaultModuleVersionIdentifier.newId(component.getModuleIdentifier(), component.getVersion()), version, age, changingModule);
    }

    private CachedModuleResolutionControl mustRefreshModule(ModuleVersionIdentifier moduleVersionId, ResolvedModuleVersion version, Duration age, boolean changingModule) {

                            if (hashSource.isPresent()) {
                                boolean changingModule = requestMetaData.isChanging() || hashSource.get().isChangingModule();
                                if (!changingModule) {
                                    File artifactFile = metadataFileSource.getArtifactFile();

        expireAt: Long
    ) : ChangingDependencyResolutionValue(expireAt) {
        override val reason: String
            get() = "cached version information for $displayName has expired"
    }

    class ChangingModule(
        val displayName: String,
        expireAt: Long
    ) : ChangingDependencyResolutionValue(expireAt) {
        override val reason: String

    override fun onChangingModuleResolve(moduleId: ModuleComponentIdentifier, expiry: Expiry) {
        val expireAt = host.buildStartTime + expiry.keepFor.toMillis()
        onChangingValue(ConfigurationCacheFingerprint.ChangingModule(moduleId.displayName, expireAt))
    }

    private
    fun onChangingValue(changingValue: ConfigurationCacheFingerprint.ChangingDependencyResolutionValue) {
        synchronized(this) {