return true;
        }

        @Nullable
        @Override
        public Project getOwningProject() {
            if (artifact.fileSource.getResourceToLock() instanceof ProjectState) {
                return ((ProjectState) artifact.fileSource.getResourceToLock()).getMutableModel();
            } else {
                return null;
            }
        }

        @Override

     */
    void finalizeIfNotAlready();

    /**
     * Returns the resource that will be required to calculate this value.
     */
    ModelContainer<?> getResourceToLock();