}

    private ImmutableAttributes safeGetAttributes() throws AttributeMergingException {
        ModuleResolveState module = selector.getTargetModule();
        cachedAttributes = module.mergedConstraintsAttributes(dependencyState.getDependency().getSelector().getAttributes());
        return cachedAttributes;
    }

    private void calculateTargetConfigurations(ComponentState targetComponent) {

        return selectors;
    }

    List<EdgeState> getUnattachedDependencies() {
        return unattachedDependencies;
    }

    ImmutableAttributes mergedConstraintsAttributes(AttributeContainer append) throws AttributeMergingException {
        if (attributeMergingError != null) {