fun getLoadedPropertyOldValue(key: String): Any? {
            return (mutatedSystemProperties[key] as? SystemPropertyLoad)?.oldValue
        }

        fun getCachedState(): CachedEnvironmentState {
            return CachedEnvironmentState(
                cleared = systemPropertiesCleared,
                updates = mutatedSystemProperties.values.filterIsInstance<SystemPropertySet>(),

object CachedEnvironmentStateCodec : Codec<ConfigurationCacheEnvironmentChangeTracker.CachedEnvironmentState> {

    override suspend fun WriteContext.encode(value: ConfigurationCacheEnvironmentChangeTracker.CachedEnvironmentState) {
        writeBoolean(value.cleared)

        writeCollection(value.updates) { update ->
            val keyString = update.key.toString()

        tracker.loadFrom(emptyEnvironmentState())
        tracker.loadFrom(emptyEnvironmentState())
    }

    private
    fun emptyEnvironmentState() = ConfigurationCacheEnvironmentChangeTracker.CachedEnvironmentState(cleared = false, updates = listOf(), removals = listOf())

        val environmentChangeTracker = gradle.serviceOf<ConfigurationCacheEnvironmentChangeTracker>()
        val storedState = read() as ConfigurationCacheEnvironmentChangeTracker.CachedEnvironmentState
        environmentChangeTracker.loadFrom(storedState)
    }

    private
    suspend fun DefaultWriteContext.writePreviewFlags(gradle: GradleInternal) {