assertTrue(restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE);
        assertNull(range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION);
        assertFalse(range.isSelectedVersionKnown(artifact), CHECK_SELECTED_VERSION_KNOWN);
        assertNull(range.getSelectedVersion(artifact), CHECK_SELECTED_VERSION);

        range = VersionRange.createFromVersionSpec("1.0");

        return artifact.getSelectedVersion();
    }

    /** {@inheritDoc} */
    public boolean isSelectedVersionKnown() throws OverConstrainedVersionException {
        return artifact.isSelectedVersionKnown();
    }

    /** {@inheritDoc} */
    public void setOptional(boolean optional) {
        artifact.setOptional(optional);
    }

        return versionRange.getSelectedVersion(this);
    }

    @Override
    public boolean isSelectedVersionKnown() throws OverConstrainedVersionException {
        return versionRange.isSelectedVersionKnown(this);
    }

    @Override
    public void setOptional(boolean optional) {
        this.optional = optional;
    }

    boolean isOptional();

    void setOptional(boolean optional);

    ArtifactVersion getSelectedVersion() throws OverConstrainedVersionException;

    boolean isSelectedVersionKnown() throws OverConstrainedVersionException;

                            // TODO ick. this forces the OCE that should have come from the previous call. It is still
                            // correct
                            if (newRange.isSelectedVersionKnown(previous.getArtifact())) {
                                fireEvent(
                                        ResolutionListener.RESTRICT_RANGE,
                                        listeners,

            }

            version = null;
        }
        return version;
    }

    public boolean isSelectedVersionKnown(Artifact artifact) throws OverConstrainedVersionException {
        boolean value = false;
        if (recommendedVersion != null) {
            value = true;
        } else {