c = versionParser.parseVersionConstraint("[1.0],[2.0],[3.0]");
        assertContains(c, "1.0", "2.0", "3.0");
        assertNotContains(c, "1.5");

        c = versionParser.parseVersionConstraint("[1,3),(3,5)");
        assertContains(c, "1", "2", "4");
        assertNotContains(c, "3", "5");

        c = versionParser.parseVersionConstraint("[1,3),(3,)");
        assertContains(c, "1", "2", "4");
        assertNotContains(c, "3");

 * {@linkplain org.apache.maven.api.services.VersionParser} service.
 *
 * @see Version
 * @see VersionRange
 * @see org.apache.maven.api.services.VersionParser#parseVersionConstraint(String)
 * @see org.apache.maven.api.Session#parseVersionConstraint(String)
 * @since 4.0.0
 */
@Experimental
public interface VersionConstraint {
    /**
     * Returns the range of this constraint, or {@code null} if none.
     * <p>

    }

    public static boolean checkSnapshot(String version) {
        return version.endsWith(SNAPSHOT) || SNAPSHOT_TIMESTAMP.matcher(version).matches();
    }

    @Override
    public VersionConstraint parseVersionConstraint(String constraint) {
        requireNonNull(constraint, "constraint");
        return new DefaultVersionConstraint(versionScheme, constraint);
    }

    static class DefaultVersion implements Version {

                }
                return classifier;
            }

            @Override
            public VersionConstraint getVersionConstraint() {
                return session.parseVersionConstraint(dependency.getVersion());
            }

            @Override
            public String getExtension() {
                return getType().getExtension();
            }

            @Override

        VersionRangeResult result = new VersionRangeResult(request);

        VersionConstraint versionConstraint;
        try {
            versionConstraint =
                    versionScheme.parseVersionConstraint(request.getArtifact().getVersion());
        } catch (InvalidVersionSpecificationException e) {
            result.addException(e);
            throw new VersionRangeResolutionException(result);
        }

     * Shortcut for {@code getService(VersionParser.class).parseVersionConstraint(...)}.
     *
     * @param versionConstraint the version string to parse
     * @return the version constraint parsed from the given string
     * @throws org.apache.maven.api.services.VersionParserException if the parsing failed
     * @see org.apache.maven.api.services.VersionParser#parseVersionConstraint(String)
     */
    @Nonnull

                throw new IllegalArgumentException("ranges not supported by this parser");
            }

            @Override
            public VersionConstraint parseVersionConstraint(String constraint) {
                throw new IllegalArgumentException("constraint not supported by this parser");
            }

            @Override
            public boolean isSnapshot(String version) {