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");

    public VersionRange parseVersionRange(String range) {
        return modelVersionParser.parseVersionRange(range);
    }

    @Override
    public VersionConstraint parseVersionConstraint(String constraint) {
        return modelVersionParser.parseVersionConstraint(constraint);
    }

    @Override
    public boolean isSnapshot(String version) {
        return modelVersionParser.isSnapshot(version);
    }

        return delegate.parseVersionRange(range);
    }

    @Override
    public VersionConstraint parseVersionConstraint(String constraint) throws InvalidVersionSpecificationException {
        return delegate.parseVersionConstraint(constraint);
    }

    }

    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 {

            }
        }
    }

    boolean matchesVersion(String requiredVersion, String currentVersion) {
        VersionConstraint constraint;
        try {
            constraint = versionScheme.parseVersionConstraint(requiredVersion);
        } catch (InvalidVersionSpecificationException e) {
            throw new IllegalArgumentException("Invalid 'requiredJavaVersion' given in plugin descriptor", e);
        }

     * @return the parsed version constraint, never {@code null}
     * @throws VersionParserException if the range specification violates the syntax rules of this scheme
     */
    @Nonnull
    VersionConstraint parseVersionConstraint(@Nonnull String constraint);

    /**
     * Checks whether a given artifact version is considered a {@code SNAPSHOT} or not.
     */
    boolean isSnapshot(@Nonnull String version);

    @Override
    public String getArtifactId() {
        return coordinate.getArtifactId();
    }

    @Nonnull
    @Override
    public VersionConstraint getVersion() {
        return session.parseVersionConstraint(coordinate.getVersion());
    }

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

    @Nonnull
    @Override
    public String getClassifier() {

    }

    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 {

    }

    @Override
    public String getClassifier() {
        return dependency.getArtifact().getClassifier();
    }

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

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

    @Override
    public Type getType() {

     * @return the parsed version constraint, never {@code null}
     * @throws VersionParserException if the range specification violates the syntax rules of this scheme
     */
    @Nonnull
    VersionConstraint parseVersionConstraint(@Nonnull String constraint);

    /**
     * Checks whether a given artifact version is considered a {@code SNAPSHOT} or not.
     */
    boolean isSnapshot(@Nonnull String version);