* */
    void systemPropertyChanged(Object key, @Nullable Object value, @Nullable String consumer);

    /**
     * System properties loaded from included build/buildSrc gradle.properties
     * */
    void systemPropertyLoaded(Object key, @Nullable Object value, @Nullable Object oldValue);

    /**
     * System properties overridden by passing CLI argument
     * */
    void systemPropertyOverridden(Object key);

internal
class VintageEnvironmentChangeTracker : EnvironmentChangeTracker {

    override fun systemPropertyChanged(key: Any, value: Any?, consumer: String?) {}

    override fun systemPropertyLoaded(key: Any, value: Any?, oldValue: Any?) {}

    override fun systemPropertyOverridden(key: Any) {}

    override fun systemPropertyChanged(key: Any, value: Any?, consumer: String?) =
        mode.toTrackingMode().systemPropertyChanged(key, value, consumer)

    override fun systemPropertyLoaded(key: Any, value: Any?, oldValue: Any?) {
        mode.toTrackingMode().systemPropertyLoaded(key, value, oldValue)
    }

    override fun systemPropertyOverridden(key: Any) =
        mode.toTrackingMode().systemPropertyOverridden(key)