require(value is DefaultConfigurableFileCollection)
        encodePreservingIdentityOf(value) {
            codec.run {
                encodeContents(value)
            }
            writeBoolean(value.isFinalizing)
        }
    }

    override suspend fun ReadContext.decode(): ConfigurableFileCollection {
        return decodePreservingIdentity { id ->
            val contents = codec.run { decodeContents() }

    public boolean isFinalized() {
        return this == FINALIZED_VALUE;
    }

    /**
     * Is this state final or on its way for being finalized?
     */
    public abstract boolean isFinalizing();

    public void finalizeOnReadIfNeeded(Describable displayName, @Nullable ModelObject effectiveProducer, ValueSupplier.ValueConsumer consumer, Action<ValueSupplier.ValueConsumer> finalizeNow) {

        }
    }

    private void finalizeNow() {
        calculateFinalizedValue();
        valueState = valueState.finalState();
    }

    public boolean isFinalizing() {
        return valueState.isFinalizing();
    }

    @Override
    public void disallowChanges() {
        valueState.disallowChanges();
    }

    @Override
    public void finalizeValueOnRead() {